Re: tar backup ok but restore errors w/ scsi dat dds2
On Tue, 27 Sep 2005, michael wrote: I think this might be a hardware compatibility problem, but you be the judge. Using tar, I can write a tape archive to the scsi dat drive (tar cvf /dev/st0 /usr/kbmosas) without any errors but when I try to read the tape back (tar tvf /dev/st0 or tar xvf /dev/st0), I get the following messages intermingled with the verbose output from tar listing the files in the archive; tar: Skipping to next header means the tape was jumping around waiting for your system or .. tar: Archive contains obsolescent base-64 headers tar: Error exit delayed from previous errors your tape is bad .. and/or clean the head ... and/or when writing .. find /home/kbmosas | buffer | tar cvf /dev/st0 c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: WiFi on Toshiba Sattelite A70 Atheros 5004X
On Sun, 25 Sep 2005, David R. Litwin wrote: Which is better: MADWiFi or ndiswrapper; and why? madwifi is better because... ( in one pc ) - it supports 3 flavors of WEP key sizes - it supports wpa - it can be your AP - it can be firewalled - it can be a small i386 machine and nothing fancy - it can be hardened - it can be patched and upgraded - it can be a wifi sniffer - it can crack wep keys - on-n-on if you use ndiswrapper... - all it is a dumb wifi client with limited functionality the microsoft provides for you and at their discretion of what *-you-* need - not all features that work on a windoze box will work under emulation mode w/ ndiswrapper c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Odd install from floppy problem
On Sun, 25 Sep 2005, Carlos Correia wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 [EMAIL PROTECTED] wrote: | Rewrite the root.img disk and be sure to format the disk properly before | writing it. | I've done that several times before I wrote the previous e-mail and didn't help... what exactly did you do ?? did you use fdformat or superformat ?? - if not, that is why your *.img files doesnt work - if you did.. try a different floppy ... preferrably a good floppy with zero defects, as dd will require a zero-defect floppy to write properly since there;s no fs to skip around an bad blocks after those low level format, than you can do the dd if=root.img of=/dev/fd0 data=sync c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: ReiseFS vs XFS
On Sun, 25 Sep 2005, Daniel Garcia wrote: Hello, I would like to know wich is the best filesystem to use: the ReiseFS or XFS. what do you need it to do ?? ( it does make some difference ) - given reierfs or xfs ... i'd use the lastest xfs-2.6.36 - always use the lastest fs .. not older ones ( mkfs.foo -V ) reiserfs-3.6.19 xfs-2.6.36 jfs-1.1.8 - for speed ... ext2 will win most all speed tests - for formatting tests ... ext2 will lose by several orders of magnitude ( say 24hrs to format 3TB, while it takes 5min for xfs or reiserfs or jfs ) - for number of inodes for it's super blocks, it matters when every byte counts, in which case vfat or msdos will win .. take the same 40GB partition and format it and see the major differences - for allowing you to pull the power at anytime, and not lose any data ... i'd use msdos .. not vfat - for compactflash or usb-stick ... - it's a gamble of how many times you can read/write it before it decides to go on a permanent vacation - for loop devices inside of a fs... i'd avoid old jfs .. as i have seen it repeatedly corrupt the looopfiles - for max file size and max partition sizes ... that'd be loads of fun to compare - more xfs vs riserfs vs jfs vs ext3 vs ext2 vs blah http://www.Linux-Sec.net/FS/ c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: ReiseFS vs XFS - test
hi ya On Sun, 25 Sep 2005, Daniel Garcia wrote: I would like to know wich is the best filesystem to use: the ReiseFS or XFS. and you will be tested on the differences between each FS http://en.wikipedia.org/wiki/Comparison_of_file_systems c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: WiFi on Toshiba Sattelite A70 Atheros 5004X
On Sun, 25 Sep 2005, David Koski wrote: On Saturday 24 September 2005 07:52 pm, David R. Litwin wrote: As a bit of a follow-up, I read the marlow.dk http://marlow.dk site: I do need to compile my own kernel with that. no.. you compile the madwifi drivers for your kernel or find ones that a precompiled for your kernel: linux-2.6.13-123.4-89.abc get the latest madwifi drivers from cvs at madwifi.sourceforge.net Don't I? Now, I'd be willing to go with the ndiwrapper, traitor :-0 but I do not konw where the Windows driver is. look at the cd that came with the hardware .. ms forces all the manufacturers to provide a 600MB cd for their hw Furthermore, apparently, it doesn't even work. it works ... ndiswrapper usually works ... i havent seen on that doesn't work, even if it's dead by default due to mswindows - you should be able to install the windoze drivers - you should be able to see the hardware - you may even be able to config it - whether you can ping wirelessly is a different ballgame So, it seems my options are compile the kernel, no ... compile madwifi .. NOT the kernel cd /usr/local/src download madwifi drivers cd madwifi make make install ls -la /lib/modules/`uname -r`/net modprobe madwifi ifconfig ath0 up ifconfig -v - how you configure the params is a different ballgame Please, do tell me what I should do. gp down the local linux/unix/c++ user groups and say you will buy pizza for whomever gets it working madwifi howto http://Madwifi.net c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: new hard drive
On Sat, 24 Sep 2005, [ISO-8859-1] Kudret Güler wrote: Today this hard drive is hdb with the same structure. On hda there is grub installed pointing to debian installation A as well as other entries. When I try to load debian installation A, currently I am having kernel panic after an error: VFS can't find ext3 filesystem on dev hda1 Question: Which files should I edit to let linux know that it is on hdb now? I already edited fstab and mtab you do NOT edit /etc/mtab .. leave it alone good if you fixed /etc/fstab --- if you're using lilo, edit /etc/lilo.conf to root=/dev/hdb1 and remove /boot/map and rerun lilo ( which will create a new /boot/map file ) and make 100% sure oyu know how to boot the system from floppy or cdrom or usb or ?? in case it complains about lilo if you're using grub, edit /boot/grub/menu.lst .. if you have a /etc/grub.conf or /boot/grub/grub.conf, change it too remove /boot/grub/device.map and do grub-install /dev/hda or leave both of these 2 steps out and see if it still boots as it should still work since hd0 is still the original /dev/hda c ya alvin
Re: RAID failed and machine freeze. Help me please! (Poor story about my RAID)
hi ya andrea On Fri, 23 Sep 2005, Andrea Ganduglia wrote: Sep 21 17:43:55 backup kernel: md: kicking non-fresh sdc1 from array! bad thing and :~# cat /proc/mdstat yes sir ri bob... Personalities : [raid0] [raid1] [raid5] md1 : active raid5 sda3[0] sdd3[3] sdc3[2] sdb3[1] 873293184 blocks level 5, 64k chunk, algorithm 2 [4/4] [] good ... raid5 is clean md0 : active raid1 sda1[0] sdd1[3] sdb1[1] 1461760 blocks [4/3] [UU_U] says sdc1 is bad and you have 4 disks that are identical ... - so in theory you should not have a problem unless the bad disk sdc1 is telling the others to copy the bad disk sdc1 I don't know there is/are disk/s where problem is located sdc1 .. see the boot messages again ( as you have already posted it ) and I don't know how I can repaire it. take /dev/sdc1 out of the raid ... - reboot - and if it comes back .. good .. watch /proc/mdstat to make sure it's done resyncing before doing anyting to the system other than logging in when its done ... - put /dev/sdc1 back in ... stop and start raid .. and watch the resync - reboot and hope and pray it likes it this time - if not you may or may not have a bad disk /dev/sdc1 or the other bad disks have ganged up on the good disk I don't know, again, if problem are HD, swap, or other hardware parts. anything could be the problem ... time to experiment === time to save your raid5 data elsewhere before you start playing - save it to someplace else that you have not been using so that you don't corrupt what was last weeks good data in the normal backups c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
manufacturer Re: recover data from a hd
On Wed, 21 Sep 2005, Borislav Petkov wrote: my hd died this morning and I know it is too late and I don't have a backup but is there a way to do a raw read and gather all the information that can be read? that'd depnd on the problem of what *-you-* mean by died vs what's on the platter One thing might be kind of a problem, however, since the hd is damaged dammagd in what way ??? ( how do you know that ) - did it make funny noises when it starts up that is different than the normal startup noises - if the head is bad ( damaged )... you will NOT be able to read anything with it - if the platter is intact, you can replace the head and use a different replacement head assembly and read the disk as if nothing broke ( but you need a special clean room to do replace the head ) at its very beginning and attempting to mount it gives I/O error on sector 0 and the consecutive ones. sounds like a corrupt file system So, is there a way to jump after those erroneous sectors and read what's left. Any pointers would be greatly appreciated, thanks! dd skipping over the 1st few sectors might help, if your new disk is sufficiently larger than your dead disk. as others have noted dd_rescue might help too P.S. I'm off to buy a new hd. Any particular brands I should keep away from? buy what's on sale ... $0.50/GB or less - maxtor - any newer than 16GB - seagate - any - ibm - stay away from those deskstars made in thailand - western digital with 8MB buffer or more Infinite are the arguments of geeks regarding hard drives. I've had nothing but success with Maxtor. Others hate them with a passion. This is ironic. The failed hd is _a_ Maxtor, infact. Hmm.., if that ain't a coincidence :) the reason why tom-dick-n-harry has no problems with maxtor xxGB disk is because they bought it at big-famous-store the reason why sally-mary-jane has nohting but problem with the same identical xxGB disk is because they bought theirs at the local pc-store or me-too website and had it tossed around like a concrete brick during shipping, handling, inventory, storage, etc, etc, etc if you buy at any random place, you will have random disk problems if you buy from good places, than any and all disks should be practically identical assuming they all have the same 1yr or 3yr or 5yr warranty - do NOT compare 1yr warranty disks with a 5yr warranty disk which is like comparing a house to the mars ( nothing to do with each other ) - if you do NOT have a properly cooled hard disk ( with a working fan on it ), than you're asking for it to eat your data one day as you sleep - i bought 1000's of drives over the last few years c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: [kde/qt] Unicode/special char problem
1;2c On Tue, 20 Sep 2005, belbo wrote: This is probably a unicode-related problem on KDE, but I didn't find any solution. I've already googled the problem, with no results... what is the environment variables defined as: set | egrep -i LANG|LC_ locale -a - should list your supported language and *.utf8 is NOT the same as *.UTF-8 c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: files not in sync on nfs mounted directories
On Tue, 20 Sep 2005, Karsten Bolding wrote: I've a problem with files not being in sync on a nfs exported home. On a cluster the nodes mounts /home from the master. Sometimes it happens that a file is changed on the master but the changes are NOT visible on the nodes - even after quite some time. how long is quite some time ( seconds, minutes, hours ) 1-2 minutes of delay before data new show up on a bz network is possible common problem what is your nfs options is it hardmounted from /etc/fstab or do you use automounter - use an automounter ( autofs ) do you run sync to flush the data to the disk different apps does different things to data it thinks is current on itself vs what's on the master ( it's trying to be too smart ) c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: files not in sync on nfs mounted directories
hi ya karsten On Tue, 20 Sep 2005, Karsten Bolding wrote: how long is quite some time ( seconds, minutes, hours ) 1-2 minutes of delay before data new show up on a bz network is possible Some minutes is not un-common. :-) If the file is copied the problem seems to be solved - moving it is not enough. there is a biggg difference to the filesystem when you cp xxx soem-place-else/yy vs mv xxx some-place-else/yy in either case, if you do use mv, do make sure you run sync on it mv xxx yyy ; sync ; sync what is your nfs options none except: /home n02(rw) n03(rw) n04(rw) add sync at a minimum in addition to rw options to see the other default options mount ( no other options to see everything ) hard-mounted hard mounted means in the above case /home no2(rw,hard) no3(rw,hard) which means if the machine goes down, everybody waits till it comes up if its soft mounted, you can ^C the hung jobs and recover and restart all the jobs and use some other duplicate files from other working machines things like ls, df and all other commands wont hang and use up the network and cpu and memory and everything is waaiting for everybody elses nfs timeouts - i do NOT use hard mounts ... i dont like to wait .. but that assumes i have multiple data that if it happens to get corrupted due to system crashes, i have good data elsewhere - I use the automounter for data directories but have sometimes experienced time outs on those and didn't want that during a simulation that might take several days. sounds like you have a bad network ... - use intel nic cards ... - use the latest kernels ... - on and on to tweek the network do you run sync to flush the data to the disk no - normally I don't - actually I never do. time to start since your data is not showing up on the other end different apps does different things to data it thinks is current on itself vs what's on the master ( it's trying to be too smart ) the app in this case is just vi (or another editor). in that case .. simple sync after mv and in the mount table should clean things up a bit c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: [kde/qt] Unicode/special char problem
hi ya andrea On Tue, 20 Sep 2005, Andrea Ballatore wrote: what is the environment variables defined as: set | egrep -i LANG|LC_ [EMAIL PROTECTED] you have a broken internalization environment you should also have LC_ variables defined locale -a - should list your supported language it_IT [EMAIL PROTECTED] it_IT.iso88591 [EMAIL PROTECTED] it_IT.utf8 [EMAIL PROTECTED] your LANG variable points to a non-existent locale lots of thing will be broken and *.utf8 is NOT the same as *.UTF-8 What's the difference? How can I fix the problem? google/yahoo for answers utf8 UTF-8 localedef -f UTF-8 -i en_US en_US.utf8 ( use the your locales ) c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: What can I do with six new publicly available computers?
hi ya mitja On Tue, Sep 20, 2005 at 10:40:38AM +0200, Mitja Podreka wrote: simple solution .. use knoppix cd in each PC and you're done - do not put/keep any data on any PC, as users will erase it or copy it or break in or ?? and you have to figure out what they did to break it 1. I was thinking to take one computer, make a file server (maybe also web-server) out of it and replace it with an old one running as thin client. and what happens when that 1 file server dies ... - have 2 of um Is there some other way of making a users /home/user directory available regardless of which computer he is using? fileserver# vi /etc/exports /home 192.168.1.0(rw) clients# vi /etc/autofs.home /home fileserver:/home add options as needed anybody can login from anywhere after you set up nis or ldap ( both are bad idea ) or rsync /etc/passwd /etc/shadow to each machine ( my preference ) 2. In the centre we do a lot of video editing using Premiere on window$. I know some Linux video editing software but the problem is that just one computer is powerful enough to do the job. If I make cluster out of few computers then the thing would be strong enough. and are you strong enuff to build such a cluster for all of the users The thing I'm not sure is: can I use a normal software or it should be specially made for clusters? too many sw for clusters... - compute clusters ?? - high reliability clusters ? - disk storage clusters ? - .. http://www.ITX-Blades.net/Cluster/ 3. If I make cluster out of all six computers I would get some kind of mini-supercomputer. more like an old style mainframe today... everybody has the equivalent of a $20M cray sitting ony our desk playing with the screen saver or you playing poker on it Question: can computers work in a cluster and at the same time one of them is used for surfing the web and another one is used for video editing, thus in need of more resources? yup.. as long as you have say 128MB of memory in each pc .. 4. If someone has some other idea on how to use this six computer I would realy like to hear it. use a non-editable distro ... so you can sleep 16hrs of the day instead of fixing what the class did tot he pc that it wont work anymore In the centre we are trying to promote Linux and other Open Source software and make resources we have as useful to the people as possible. good idea c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: quickly partition disk, copy an image, install grub
On Tue, 20 Sep 2005, Gregory Seidman wrote: } fdisk /dev/hdb, and set up / and swap partitions faster way to copy partitions from one disk to another is with sdisk or cat file | fdisk } mkswap /dev/hdb5# do I need to do this? no .. swap partition is optional, and if you have enuff mem for all your thingies your pc will be doing, it won't randomly crash on you swapp partitions might be of major issue on usb-sticks and cf when you need all the bytes to squeeze in the kitchen sink } dd if=/path/to/image of=/dev/hdb1 # will this work if the partitions the problem with low level copying a disk to another with dd... a) you're assuming thre is no defects in the master and no defects in the clone - if there is a bad sector in either, you lost 512bytes of data and you will never know about the loss of data, unless you did a diff -r /master /clone b) you'd be copying and reformatting the target to be the same as the master .. ( ie .. if your clone is bigger disks, you're wasting space on the clone ) .. more whackyness }# are not of exactly equal size? when using dd, yo do NOT need to format the clone since you're doing it by copying the old data ( image ) into the new disk } dd if=/dev/hda of=/dev/hdb bs=448 count=1 # does this install GRUB? yoou just wiped up partition 4 you should be using bs=446 instead of 448 .. BIG difference } so, my question is: is this the right way to go about this? am I } missing any steps? is there a better way to do it? yes ... it just depends on what you're comfy doing i prefer ( tar master ) | ( cd clone ; tar extract ) and use lilo or grub to reinstall the mbr c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Debian Compatable UPS?
hi ya On Wed, 21 Sep 2005, charlie wrote: | Battery boxes should be plastic. | |I have never seen a metal battery box. that's why battery holds in a car is metal, so you have to buy a new car every few years :-) WE have four of them for our 700 amp 24 volt solar system. Being very handy when transporting and just light/heavy enough to lift for two people. i assume that's 2 batteries in parallel and those 2 pairs in series - do you use electronics to adjust for 14.0v vs 14.5v even a 0.1v difference between the batteries at 500A will be a big heat generator ( too hot to touch ) - nice big fat 1awg stranded cables ?? --- for mini-itx systems that uses 3A per p4-3G+mb+mem+disk that'd be enough power for 200+ of them mini-itx boxes as long as the batteries can be kept charged and 2A additional (5A total) peak power during the first 2-3 seconds of power up at 12vdc c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Debian Compatable UPS?
On Mon, 19 Sep 2005, Jared Hall wrote: Maybe let me know what you all are using. Please help me navigate the sea of UPS. car battery ( $50 ) plus those $50 12v dc-dc atx adaptors would do nicely car battery lasts abut 14 hrs with an idle P3-1G .. last time i checked using standard p3-1g systems .. i would never buy an apc if there's another ups on sale - all the dead ups i seen or replaced for customers are all apc c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Debian Compatable UPS?
On Mon, 19 Sep 2005, Angelo Bertolli wrote: Alvin Oga wrote: car battery ( $50 ) plus those $50 12v dc-dc atx adaptors would do nicely .. Sounds good to me. But I'm kind of new to this. Could you provide a link or two to the atx adaptors that one might consider? google: dc-dc atx and keep your car battery outdoors, not indoors ... and do not light a cigaratte near the car battery in a closed enviroment ka-koom c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Suggestions for Debian Harware Vendors
hi ya jason On Mon, 19 Sep 2005, Jason Martens wrote: I'm not talking about official support from Dell, i'm not either we provide unofficial support on just about any hw I think this is a valuable resource if one is forced to run Debian on a Dell. There are very helpful people out there. we've never found a single answer in those lists we did get some techie answers from 3rd or 4th level escaltion tech support with the techie's dell email addresses Yes, it does seem somewhat backwards, but it is the non-trivial aspect that I am thinking of. Imagine how easy it would be if Dell provided a repository for their OMSA and raid drivers! they do ... it's all over the place ... some are newer and some are older .. some keep repositories Or even a tarball installation instead of an RPM, that could more easily be converted to a .deb. conversion of xxx into yyy packages is trviial to the point that it either works or does not ... and can always be extracted in the machines it was packaged for and repackaged to the target This is the kind of support that I am looking for from a hardware vendor. additional support always costs ... Making my life easier. If there is no vendor out there that does, i bet lots of vendors in this mailing list is more than capable to do all of the above you just mentioned then I guess I'm stuck with stupid RPM management packages and windows self extracting floppy disk images. that's your choice to do thigns that way or not ... Thanks, this is some of the kind of information I was looking for... lots of hardware nuetral support outfits I'm not sure how willing my bosses will be to go with a smaller shop, so again ... small shops can provide the specialty support needed big outfits will cater to those millions of people wanting this new feature and patches for that new hardware I was hoping someone had experience installing Debian on say Sun, HP, IBM or Penguin Linux for example, amongst gazillon ontehr platforms and can say if it was difficult to get everything working, or easy. some thigs will be trivial ... other stuff is not Remote management is also a primary concern. remote management is a whole new ball game that has noting to do with support but more a look-n-feel issue vs functionality I think you misunderstood what I am asking for, which is probably my fault. I don't care about official support we and most other non-dell entities will ever be providing official debian support on dells or for that matter official redhat support on dells... --- support comes in many flavors and price/perfomance/functionality/response/qa/quality/etc/etc/etc c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Debian Compatable UPS?
On Mon, 19 Sep 2005, John Hasler wrote: Alvin Oga writes: and keep your car battery outdoors, not indoors ... Not necessary (though you may want to keep it in a plastic container.) the other kinds of batteries is the gel-cell ( same type as the commerical ups ) but cheaper and more amp-hrs or sealed motorcycle batteries and do not light a cigaratte near the car battery in a closed enviroment You _might_ get a bang if you stick a spark igniter inside a cell while the battery is being heavily overcharged. :-) Are you going to keep the battery in a hermetically sealed room? If not, don't worry about explosions. or long term effects of itty-bitty amts of sulfuric acid on your lungs 10hrs of uptime at $100 car battery + charger vs not-really-availble-commercial-ups of the same uptime w/o 110vac is the considerations - you probably cannot take a car battery into a commercial colo either as its considered toxics, so you're moving your colo'd machines to your garage eh ?? c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: backup plan bare metal
hi ya rodney On Tue, 20 Sep 2005, Rodney Richison wrote: Would be interested in seeing what some of you use for a backup plan. backup plan ... i always run 3-5 duplicate servers at the same time .. just change the ip# and the backup machine would be live Tar? find | tar | grep -iv is all what one needs to do 8-day, 32-day, 180-day incrementals + full weekly backups Easy/quick way to restore bare metal? take a virgin disk .. plug it into any pc and have a go at it once the initial systemis installed from cdrom or you-favorit-tool - it can be 1 minute or 1hr or 1 day to get a working box back to the same state as your master box - apply all patches ( my rules, even if it makes it newer than the original master server ) - restore your /home data onto the newly recreated machine from bare metal Rsync? rsync is extremely bad idea because: - whatever caused your main server to die will propagate itself on your backup server when you use rsync - rsync does NOT save a copy of the file before you overwrite it Can it do bare metal? anything can do bare metal .. once you have a workign system such that you can run rsync what about hard links? hard links, soft linke and hanging links and anything else is all part of the choice of different apps you use to create probalems or avoid problems because foo-app you used cannot do the trick Again, easy/quick way to restoe entire debian server? - boot a minimal deb install from fopppy or cdrom - do net installs and upgrades - restore your /home data and other directories *-you-* modified Unfortunatly, I've found mondo unreliable for bare metal. Though when it works, it's the cat's meow.. 80% - 90% of most of the backup programs will all fail one or more fo the backup and restore tests ... for any number of reasons .. - you figure out what is important to you - why did the primary server die - do you care if the problem propagates to other servers - do you care that the new replacement hardware is different - do you want to fiddle with the backups daily, weekly, monthly ?? - do you need a gui to point-n-click around - do you need to recover the data of the machine till Jul 4, 2005 before the first sign of the cracker and sleeper that you just found a month or 3mon or a year later - is automated backup that works by itself with 1 line in cron or point-n-clicky backups - how fast does your backup need to go live when the primary goes down - is automatic fail over a good or bad idea ?? - the carcker will rm -rf your backup too if you're nto careful about services and passwd and vulnerabilities - how much USER data of backup do you need 10MB, 100MB, 1TB, 10TB ... - how do you protect against dead disks, dead fans, dead powersupplies, dead ethernet card, ... - how do you protect against kernel upgrades and other required system patches and upgrades - how much is it gonna cost ( in hourly $$$ losses ) if the primary server dies - how much is the backups gonna costs and where is it - gazillion metrics == == all those answers will dictate which backup and (baremetal) restore you == should be using == c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Software RAID 5 SATA array crashed
hi ya the only major piece of info that is missing: a) cat /proc/mdstat b) what exactly was the commands you type vs the english explainations On Sat, 17 Sep 2005, Adar Dembo wrote: Sep 11 23:46:57 localhost kernel: md: kicking non-fresh sdc1 from array! Sep 11 23:46:57 localhost kernel: md: unbindsdc1 obviously bad Note the message about sdc being non-fresh. Also note that the array is both DIRTY and DEGRADED. degraded means it works as if it was one giant disk, and if any of the remaining disks dies, you are most likely to lose all data on all disks unless you happen to know how to recover tdata when 2 of the 5 disks are considered bad ... ( raid allows for 1 of 5 to go bad in your config ) I played around with mdadm but I could never get the array to start. All the exact commands you used and in what order makes all the difference the output of /proc/mdstat is what you should be looking at it'd be 100x simpler to reformat and restore from backups unless you know why you did which commands in which order say based on some software-raid-repair-howto for which each failure situation is probably different c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Software RAID 5 SATA array crashed
On Sun, 18 Sep 2005, Adar Dembo wrote: [EMAIL PROTECTED]:~$ cat /proc/mdstat Personalities : [linear] [raid0] [raid1] [raid5] [multipath] [raid6] [raid10] [faulty] md0 : active raid5 sdb[0] sde[4] sdf[3] sdd[2] sdc[1] 1172229120 blocks level 5, 64k chunk, algorithm 2 [5/5] [U] unused devices: none looks good 98 sudo mdadm --assemble /dev/md0 good but i'd skip all the sudo nonsense ... and su - root 111 /sbin/fdisk /dev/sdc bad ide 137 sudo mdadm --manage /dev/md0 -f /dev/sdc1 you tried to remove it ?? but where did you add it back in i'd reformat /dev/m0 and restore from backups if cat /proc/mdstat still shows U c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: mdadm not properly starting RAID 1 device
hi ya matt On Sun, 18 Sep 2005, Matt Adams wrote: I have a RAID 1+LVM configuration on one of my 2.6 desktop machines. you like to be on the bleeding edge eh :-) marvin:~# mdadm --detail /dev/md1 State : clean, degraded bad 0 820 active sync /dev/sda2 1 00- removed bad marvin:~# mdadm --examine /dev/sda2 State : clean good 1 1 001 faulty removed bad marvin:~# cat /proc/mdstat Personalities : [raid0] [raid1] [raid5] md0 : active raid1 sda1[0] sdb1[1] 136448 blocks [2/2] [UU] md1 : active raid1 sda2[0] 156151680 blocks [2/1] [U_] bad .. - for teeting ... - i'd remove the LVM and see if ti works, and if it doesnt, you have a bad scsi disk make sure he scci devices is terminated properly termination power on the terminators vs on the cable vs on the host vs ... c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: app to add subtitles videoclips for DVD?
On Sat, 17 Sep 2005, [iso-8859-1] Søren Christensen wrote: Iv'e been looking for an application to add subtitles to video-movies, that is I have some DVDs in english that I need to add danish subtitles. What app should I be looknig for? if you're using mplayer to play the movie, mplayer has subtitle capability that does NOT modify the mpeg/movie content c ya alvin
Re: Suggestions for Debian Harware Vendors
hi ya jason On Fri, 16 Sep 2005, Jason Martens wrote: Hey all, We are currently a Dell shop my condolences :-) but are getting frustrated with the lack of debian support available for our Dell servers. and where is the debian support supposed to come from ?? if it's dell hardware, than dell's policy is they will provide the support their vendors and your customers will ever need if we ( anybody ) changes the installed OS, dell's warranty and support is thrown out the window with the bath water, leaving the customers stuck until the orig dell installed os is back in their hw Specifically, see these [1] [2] threads on the linux-poweredge list if you are interested. 1. http://lists.us.dell.com/pipermail/linux-poweredge/2005-March/019671.html 2. http://lists.us.dell.com/pipermail/linux-poweredge/2004-May/014689.html i've long since given up on dell's mailing list While much of the time, Dell hardware can be made to work on Debian, that's backward .. OS's can be made to run on any hardware ... or not depending on the (human) installer abilities to make it work on that hardware - dell uses custom hardware and custom firmware which makes it non-trivial in some cases ( ie. not for beginners ) I don't enjoy being a second class citizen to the RedHat, SuSE and Windows users. i'll refrain from any more bad jokes that i like to always point out :-) My question to the debian-user list is this: Is there another vendor out there that supports their servers with debian as a tier-one platform? lots of vendors provide debian support on their own hardware they ship and/or support of other people's broken hardware eg.. we make tons of revenue fixing broken dell boxes after the customers have given up on dell support list of debian vendors http://www.us.debian.org/distrib/pre-installed - note that some are hardware nuetral while others support only their hardware - note that some are debian-ites and others are not the problem with dell support is that they send out generic gorilla to come and look at the customer system, even if they cannot fix it, but can claim dell was out there in 4hr or 24hr per their contract - these generic gorilla sometimes have the expertise needed and sometimes clueless other than a body to sign in that they showed up ( and they don't even work at dell but is outsourced ) fixing it is a separate issue, and i think everybody understands that I am looking for anything that can shed light on the situation like mailing lists for other companies similar to the linux-poweredge list, personal experience, comparisons involving debian, etc. there's too too much light and solutions and options ... for a vendor or for the customers I have some freedom to choose here, and I want to reward the vendor that is the most open and supportive of debian. Finding that vendor is the problem right now. that should be trivial to find ... the problem most support providers have is that they expect to be paid for their expertise .. not $5/hr ... that other support outfits require to hire their gorillas vs having folks that do this for a living 24x7 to fix other peoples hardware and software and installations - most customers initiall will not pay for additional professional support and thus they have to decide which is worst: live with the broken (dell) systems or pay the folks that can fix it once and for all without knowing the kinds of specific problems you need solved, there is no general solution, other than get 2 or 3 support proposals to address that particular problem having a specific problem ... there's a dozen possible real solutions and some are free, some are typical $$$ and some are expensive due to the installation at the customer site - we have made our living providing linux support on dells :-0 - that is good and bad .. and dell doesn't know anything about us and/or we won't even register as a ambient noise in their vast list of their official support list - we're NOT affiliated with dell and never will be since we ship our own hardware too - note that other large linux vendor also provided official support on dell, but they have given up on dell ( too much beauracracy and paperwork is my guess for $0.01 ) c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: deleting selected/filtered mails in sendmail queue
On Thu, 15 Sep 2005, [iso-8859-1] Erik Dörnbach wrote: Is there anything available either in sendmail itself (something like sendmail [EMAIL PROTECTED], just for deleting and not queuerun) which I haven't found yet or some additional tools/scripts whatever. i clean out the sendmail queue with http://www.linux-sec.net/Mail/etc.mail/mqueue.clean.pl - it shows who sent it and where it's going - modify it to your specs/requirements - the assumption is that old pending mail is undeliverable and will just sit there indefinitely, as opposed to you deleting the mail at the same exact instant that sendmail is sending the outgoing mail that would be corrupted due to the deletion - always restart sendmail after cleaning its queue c ya alvin
RE: deleting selected/filtered mails in sendmail queue
On Thu, 15 Sep 2005, [iso-8859-1] Erik Dörnbach wrote: From: Alvin Oga [mailto:[EMAIL PROTECTED] Sent: Thursday, September 15, 2005 2:25 PM i clean out the sendmail queue with http://www.linux-sec.net/Mail/etc.mail/mqueue.clean.pl - it shows who sent it and where it's going - modify it to your specs/requirements I'm not sure I understand correctly, what this script is supposed to do it does what you wanted .. to clean the queue, but if you don;t speak perl, it wont help you - it's a minute or two to test that it works before setting it to delete undeliverable mail .. leaving others alone c ya alvin
Re: absurdly simple LAN problem
On Thu, 15 Sep 2005, Anthony Campbell wrote: On 15 Sep 2005, Thomas Adam wrote: --- Anthony Campbell [EMAIL PROTECTED] wrote: I've struggled with this one for months! Much perusing of HOWTOs and googling hasn't helped. tooo much effort :-) ... but good .. thanx for trying so hard I have two computers, desktop and laptop, and a wireless router and ADSL modem. Both machines reach the internet without problems, one via a cable link to the modem, the other via a wireless link to the router. did you configure the router ?? to the other though I can ping localhost on each. Turning off the firewall (shorewall) does not help. ping localhost is 100% guaranteed to work ... as long as 127.0.0.1 is in /etc/hosts and you do use /etc/hosts in your /etc/resolv.conf - ping of it's own ip# will always work evenwith the ethernet cable disconnected what is your contents of /etc/hosts and /etc/resolv.conf ac:~:$ route -n Kernel IP routing table Destination Gateway Genmask Flags Metric RefUse Iface 192.168.0.0 0.0.0.0 255.255.255.0 U 0 00 eth0 0.0.0.0 192.168.0.1 0.0.0.0 UG0 00 eth0 192.168.0.1 is presumably your router thru which you expect to get out ifconfig -a: eth0 Link encap:Ethernet HWaddr 00:0B:2B:02:32:FB inet addr:192.168.0.20 Bcast:192.168.0.255 Mask:255.255.255.0 good ... your ip# is *.20 For laptop: Destination Gateway Genmask Flags Metric RefUse Iface 192.168.0.0 0.0.0.0 255.255.255.0 U 0 00 eth1 0.0.0.0 192.168.0.1 0.0.0.0 UG0 00 eth1 good ... your gateway is the same *.1 ac:/usr/share/doc/shorewall:$ ifconfig -a eth0 Link encap:Ethernet HWaddr 00:06:1B:DE:4B:CF bad .. this does NOT have an ip# assigned to it ... === eth1 Link encap:Ethernet HWaddr 00:40:96:44:B5:A6 inet addr:192.168.0.22 Bcast:192.168.0.255 Mask:255.255.255.0 good ... this is *.22 wifi0 Link encap:UNSPEC HWaddr 00-40-96-44-B5-A6-00-00-00-00-00-00-00-00-00-00 BROADCAST MULTICAST MTU:2312 Metric:1 bad ... this does NOT have an ip# assigned to it / c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: absurdly simple LAN problem
hi ya anthony On Thu, 15 Sep 2005, Anthony Campbell wrote: desktop: /etc/hosts: 127.0.0.1 localhost loopback 192.168.0.20arcadia.acampbell.org.uk arcadia arcadia.acupuncturecourse.org.uk accampbell.uklinux.net 192.168.0.22 thinkpad ibm for testing, change all that .. delete the garbage what was deleted in this email example 127.0.0.1 localhost.localdomain localhost 192.168.0.20arcadia.acampbell.org.uk arcadia 192.168.0.22 thinkpad.acampbell.org.uk ibmthinkpad /etc/resolv.conf search search acampbell.org.uk nameserver 80.84.64.20 nameserver 80.84.72.20 laptop: /etc/resolv.conf search acampbell.org.uk nameserver 80.84.64.20 nameserver 80.84.72.20 good on the laptop you did have the correct search but your desktop did not /etc/hosts 127.0.0.1 localhost.localdomain localhost 192.168.0.22ibm.acampbell.org.ukibm thinkpad 192.168.0.20 arcadia 192.168.0.20 arcadia.acampbell.org.uk arcadia ac:/usr/share/doc/shorewall:$ ifconfig -a eth0 Link encap:Ethernet HWaddr 00:06:1B:DE:4B:CF bad .. this does NOT have an ip# assigned to it ... === ifconfig eth0 192.168.0.20 wifi0 Link encap:UNSPEC HWaddr 00-40-96-44-B5-A6-00-00-00-00-00-00-00-00-00-00 BROADCAST MULTICAST MTU:2312 Metric:1 bad ... this does NOT have an ip# assigned to it / iwconfig wifi0 192.168.0.22 How can I correct these? see above - if it works when yu manually set it.. you can either do those commands in your own script or find the misconfigured files and fix it c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Custom Kernel Won't Boot
On Wed, 14 Sep 2005, [ISO-8859-1] Aurélien Campéas wrote: VFS: Cannot open root device 301 or unknown block (3,1) Please append a correct root= boot option kernel panic: not syncing : VFS cannot open root device i am wondering what to add as a boot option (i am running LILO) i tried nothing you can do at lilo/grub/... make sure you have compiled your disk controller and filesystem drivers in-kernel (not as modules) if you do make(use) ide and fs modules ( for whatever odd reason ) - you need to make a custom initrd.gz file - you'd need to edit /linuxrc inside that initrd.gz file to load those ide and fs drivers more booting fun Linux-Boot.net/Loaders c ya alvin
Re: Custom Kernel Won't Boot
On Wed, 14 Sep 2005, [ISO-8859-1] Aurélien Campéas wrote: a mkinitrd for the dummies, riddled with examples, would be neat but for a costom kernel without initrd, also don't forget to disable initrd support (in the kernel) (it sits near the RAM fs section) do you man disable or enable initrd support?? - at least its black-n-white, in that we supposedly know what to do with that option but what about other options like, ramdisk support too which is NOT the same as initrd support or do you only want to use loop devices ?? and why use loop devices, etc .. gazillion examples ... - in each distro .. there typically is an initrd.gz or similarly named files somewhere on their boot media http://Linux-Boot.net/InitRD/Viewing/ to break those initrd.gz so you can peek isnide would depend on how they built it ... and sometimes its compressed and sometimes not even if its named to imply one way or the other ( *.img vs *.gz vs *.foo ) - some use minix + cramfs ... which your system would need to support for you to peek in for making your own ... look at the contents of other distro's initrd, since we all know the distro's CAN install into most any hardware after reading/studyng their stuff, you can make your own with: http://Linux-Boot.net/InitRD - ramdisk - loop devices ramdisk is limited in size by the kernel option at kernel compile time ... dd if=/dev/zero of=/dev/ram0 bs=anything count=big will NOT work loopdevices can be any size c ya alvin
Re: Custom Kernel Won't Boot
hi ya On Wed, 14 Sep 2005, Jon Roed wrote: I can't find a driver for my chipset in the kernel options. the chipset you care about is the output of lspci - you'd want to make sure you can find all the drivers for each of the hardware controllers listed in the output of lspci - if the kernel does not have a driver for ChipMaker-1234 v5 than you should use 2.4.31 and/or 2.6.12.x instead and if not, pick the one that closer to it or a generic driver that is supposed to be vendor nuetral burn the marketing info that came with the motherboard as its basically useless ( not detailed enough or accurate ) c ya alvin I have an AMD Athlon 64 2800+. The chipset according to the manual that came with the motherboard is a SiS746 Northbridge and SiS963 Southbridge. I can't find an option for either of those. Also, which IDE drivers should i make sure are installed ? -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Making a live cd (initrd / kernel panic)
On Wed, 14 Sep 2005, Patterson, Richard A wrote: On our target system, I boot to the cd, grub loads, and the kernel appears to load, but then panics... Cannot mount root fs on unknown-block(3,1) (3,1) is /dev/hda1 - you need to install the /boot/grub/dxxx_stage_1.5 for that partition I'm not sure, but I'm afraid that (3,1) coorisponds to the boot partition of the first machine (where the initrd was created)... if you moved grub from xxx system to a differently configured system, than you have to change /boot/grub/devices.map for the new system - you can test it by manually editing the grub lines just before it starts to boot at the grub boot menu c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: usb-thumb memorex? ???
On Wed, 14 Sep 2005, Chris Parker wrote: is the memorex usb thumbdrive workable, able to mount? yes .. most any usb will work under *nix you just need to have the usb drivers for the usb controller on your mb lspci | grep usb - check the kernel options against the lspci output but your kernel supports the usb controller Buffer I/O error on device sdb1, logical block 508378384 Buffer I/O error on device sdb1, logical block 508378384 FAT: invalid media value (0xb9) VFS: Can't find a valid FAT filesystem on dev sdb1. says your kernel does not support FAT16 fdisk -l /dev/sdb since it finds the fat16 partition you do NOT have a usb problem Disk /dev/sdb: 499 MB, 499122176 bytes 32 heads, 16 sectors/track, 1904 cylinders Units = cylinders of 512 * 512 = 262144 bytes Device Boot Start End Blocks Id System /dev/sdb1 * 11904 487416e W95 FAT16 (LBA) c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: usb-thumb memorex? ???
On Wed, 14 Sep 2005, Chris Parker wrote: media value (0xb9) VFS: Can't find a valid FAT filesystem on dev sdb1. vfat 13920 0 that's fat32 fat53756 1 vfat that's fat16 msdos 10400 0 that's definitely fat16 but ... vfat 13920 0 fat53756 2 msdos,vfat good fat16 wouldnt fall under vfat or msdos. dang fat16 is a whacky name for msdos is there a debian kernel w/fat16 support or would it be better to just reformat in a vfat partition? possible? looks to me that your kernel supports fat16/msdos but your kernel is not able ot use the modules to talk tothe usb stick manually do: modprobe msdos modprobe fat modprobe vfat and see what it spits out at you than spit back and do: mount /dev/sda1 /mnt/usb-stick and see what it barfs at you if it still doesnt work .. - change to 2.4.31 or 2.6.13 directly from kernel.org and skip all the broken modified kernels - the above kernel and usbstick should be working on your system c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
boot - RE: sarge: the worst distro?
On Tue, 13 Sep 2005, Ken Walker wrote: I really missed the security of a boot floppy though :o( dd if=/boot/vmlinuz of=/dev/fd0 and if its bigger than a floppy, i'm not sure, but it should work: dd if=/boot/vmlinuz of=/dev/usb-stick and them 120MB zip thingies will work too - hundred ways to make a boot floppy or boot into your system c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: How to lock user in his home
On Tue, 13 Sep 2005, Leonardo Marques wrote: ?? i want the user can do everything they can do by default minus browse accross the file system. when the kiddies login, instead of using /bin/bash, you can: - use a modified shell ( simplest solution ) - you can use chroot him into jail ( next simpler solution ) - you can chmod 111 /bin /sbin /everything else - test things and fix what broke - dozens of other things ... each half broken and works only for some things and fails for other important/non-important stuff - after you attempt to put your users into jail, see how long it takes before the boss or the kids comes back at the wrong times and says daddy it's broken come fix it now ... whaaahhh ... whh .. :-) c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Custom Kernel Won't Boot
On Tue, 13 Sep 2005, Jon Roed wrote: Did you compile your kernel using make-kpkg? Using --initrd or without? Does the /etc/lilo.conf file match your initrd? That is, if you build an initrd did you specify it in yoiur /etc/lilo.conf file? I am guessing not as that would match the symptoms so far. Bob I compiled my kernel using make-kpkg but i didn't use the --initrd option. Should i have ? no .. not really .. - when you build a kernel: - why ?? - where did you get the kernel source code from - where did you get the *.h ( headers ) for your current kernel you are using in order to build the new kernel - do you know the chipset used in your hardware ? - the 4 important questions: which svga chipset which nic chipset which sound chipset which dma chipset ( see the output of lspci . - i assume you know exactly what cpu you have and all the cpu flags it uses - make xconfig and start clicking away .. - if you donno what that option is for .. turn it off - most of the defaults in the kernel source from kernel.org is wrong ( left on for the wrong reasons ) - tons of kitchen sink stuff you dont need in your otutdoor tent ( your own hw ) - you're allotted 10 minutes to click things on and off to define your kernel ... and you're done after that making your custom kernel, install /vmlinuz and running lilo is 30 seconds - if you build all the chipset drivers into the kernel: - you do NOT need an initrd - you have built your own kernel if it boots and works - see the kernel-howto for all the itty bitty details - and if you wanna start to play .. - harden your kernel with the gazillion kernel security patches c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: fhs: where to mount other PCs ?
On Mon, 12 Sep 2005 [EMAIL PROTECTED] wrote: Hello, acctually you can mount them anywhere you want. i bet /mnt or /home . just dont mount them to /etc or /sbin or something, that would be too weird... the right place to mount media and other PCs over nfs is a pissing contest - root should NOT be mounting anything temporarily - automounters has its own mountpoints - users should be mounting things consistently, so that tom/dick and harry cn find where you mounted stuff /usr/local /var/spool/mail /var/www /home all can be mounted in its expected location or mounted anywhere else ( /mnt/local, /mnt/home, .. ) - add the additional mounting fun for mounting *.i386 binaries ( generic ) mounting *.i686 binaries ( p4 ) mounting *.amd binaries mounting *.emt-64 binaries mounting *.sun3 mounting *.sun4 ... ie use /usr/local.`uname -m` i mount everything under /mnt because ALL pcs is the same ... and anythign is considered local to the disk/PC itself and NOT mounted from anywhere else /mnt/floppy /mnt/dvd /mnt/cdrom /mnt/Win98 /mnt/Win2K ... and anything that is automounted is mounted under it's own /.autofs with symlinks to provide: /n/Win98 /n/Win2K /n/Mail /n/Web /n/home ... c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: reinstall lilo after windows
On Mon, 12 Sep 2005, Hendrik Boom wrote: I know it will fire my bootloader (lilo on the MBR) to wipe out the mbr dd if=/dev/zero of=/dev/hda bs=448 count=1 aka: fdisk /mbr aka: reformat/reinstalling :-) to install the mbr dd if=working-mbr of=/dev/hda bs=448 count=1 If you have a floppy drive, one of these should work: use 'mkboot' to make a boot floppy (easiest) to make a boot floppy dd if=/vmlinuz of=/dev/fd0 ; sync wait for the fd idiot light to go off :-) to make a lilo boot floppy with regular lilo options vi /etc/lilo.conf boot=/dev/fd0 lilo# create the MBR on the floppy instead to make a grub boot floppy... - save this task for last .. if you wanna have fun mkboot only works if you have lilo installed. those commands and gazillion other equivalent/similarly named commands all have assumptions in order to work or, get tomsrtbt to rerun lilo. http://www.toms.net/rb/ requires that you have a working lua script language tool to create the new standalone boot floppy --- boot any standalone boot floppy or cd or cf or usb-stick mount /dev/your-disk /mnt/dead-boot-disk chroot /mnt/dead-boot-disk lilo or grub-install /dev/your-disk exit reboot -- more gazillion ways to make a device bootable So much study I found it easier to install and configure lilo even though my system already booted with grub. My son is suspicious of grub. Last year when he installed Debian using grub as bootloader, it hosed but WinXP installation. whatever bootloader you use will ALWAYS wipe out the previously installed MBR if you write to the same location ... ( /dev/hda vs /dev/hda1 vs /dev/hda2, ... ) if you want dual boot ... - you have to explicitly create the dual-boot config files ( lilo.conf or ( grub.conf aka menu.lst ) ) He now uses lilo and boots Linux *only* from a floppy. sometimes paranoia is a good thing ... until one understands what the silly apps do when you tell it go ahead and wipe out my disk By the way, does anyone know how to tell lilo that although the boot and root partitions are all on /dev/hda, it should make a boot floppy that boots from /dev/hdc instead, vi lilo.conf boot = /dev/fd0 root = /dev/hda1 lilo more booting fun http://Linux-Boot.net c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: reinstall lilo after windows
On Mon, 12 Sep 2005, Hendrik Boom wrote: vi lilo.conf boot = /dev/fd0 root = /dev/hda1 Won't that make it boot from /dev/hda1? no... it boots from floppy ( the MBR ) it's told that /, /dev, /etc, /bin etc ( rootfs ) is on /dev/hda1 How will it know to look on /dev/hdc1 you tell it ... a) change lilo.conf and rerun lilo or b) at lilo prompt: root=/dev/hdc1 or gazillion other ways (where it will be after the hardware change?) wherever you want it to be including never never land if you want it to be a known state, you must know the state too every file, every option, every character in the file and the characters of the system that makes it boot into your known/expected state - if you dont know, .. it will do EXACTLY what you told it to do or the system defaults per the gpl developers c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: reinstall lilo after windows
hi ya hendrik On Mon, 12 Sep 2005, Hendrik Boom wrote: boot = /dev/fd0 root = /dev/hda1 Poor choice of language. Yes. It boots the MBR on the floppy, then tries to read the kernel, the initrd, and such from /dev/hda1. yup.. But if the drive has been physically moved to /dev/hdc1, this won't do much good. that's why you can give and/or change any boot options to the bootloader b) at lilo prompt: root=/dev/hdc1 Can it actually do *anything* with /dev/hdc1 before it's read the kernel form the appointed place it is 1000x faster to try it ... than to type these email questions c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: bonding failure in Debian 3.1 Kernel 2.6.8-2-smp
On Sun, 11 Sep 2005, Holger Harling wrote: The Bond0 startparameters are in the networking script under case $1 in .. behind ifup -a modprobe bonding mode=1 miimon=100 ifup bond0 ifenslave bond0 eth0 eth1 what is the contents of your bonding files manually.. modprobe bonding ifconfig bond0 1.2.3.4 netmask 255.255.255.0 broadcast 1.2.3.255 up ifenslave bond0 eth0 ifenslave bond0 eth1 ifconfig -v - should list bond0, eth0, eth1 all responding to 1.2.3.4 and if you unplug eth0 or eth1, it will still work - if it's working right .. you whoudl be able to run 2x faster with scp -p /somedir/100MB.db y:/someplaceelse c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: hostap and intersil prism
On Sun, 11 Sep 2005, Hans du Plooy wrote: Hi guys, I am trying to set up an Intersil Prism PCI card as a wireless accesspoint with the hostap driver. I have found several HOWTOs on the net, and they all follow about the same procedure (most of them Red Hat based though). than, i'd say you didn't look hard enough or long enough, as there's tons on non-rh specific hostap howto's the rest of the driver collection http://www.Linux-Wireless.org/Wireless/Drivers/ wlan0 No such device it means the driver you used didn't find any hardware lspci -v :00:07.0 Network controller: Intersil Corporation Intersil ISL3890 [Prism GT/Prism Duette] (rev 01) if this part# ISL3890 is NOT listed in the hostap hw list, your hw is NOT supported http://prism54.org/supported_cards.php since it is listed, get the latest version from http://prism54.org/download/ consider all wifi packets sniffed and cracked even with wep and some wpa use ssh and some vpn if you're paranoid c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
docs + exp Re: Help!
hi ya On Fri, 9 Sep 2005, Steve Lamb wrote: Carl Fink wrote: Any information needed to make a choice should be PART OF THE PROGRAM (minus very rare cases). Why make the new user go searching? most folks, form whom you buy a pc will take care of the headache for you, just like when you buy a dell/hp/ibm .. - you get what they give you ( good or bad ) and probably not much wiggle room to bitch and moan that they didn't install it ccrrectly debian/linux gives tooo too much lattitude to fix things the right way - to fix any install from a cd PROPERLY can take 15min or 3-5 days to properly install and harden the server if you do not have a reference to start from and have to harden or fix it file-by-file - i can easily spend 3 days to fix all the known problems with just about any any and all distro - you either have to have the prior install anything into any other kitchen sink or be willing to learn new tricks or read more docs Because, and read this slowly, ask mommy for help with the big words... sometimes grandpa is more willing and supportive too since they don't have other things to do INSTALLING AN OS ISN'T FOR NEW USERS! not if they expect it to work right the first time with minimal thinking and reading .. Not even Microsoft has figured it out yet. Their install is abysmal to use even for advanced users. That is why... again, mommy might need to help here they have the approach right .. - you get what they give you .. no choice .. no options .. MOST OPERATING SYSTEMS ARE PRELOADED AND THE AVERAGE USER NEVER HAS TO GO THROUGH AN INSTALL! or the upgrade or debugg unless oyuhappen to be foolish to pay dell for their warranty and support that they do not provide other than asking you 100 pages of did oyu do this.. did you do that BEFORE you get their outsourced hired gun to show up for 5min to fix the problem in 5min that you spent 5days on the phone with dell support and if you cahnged anything, there is no warranty with debian/linux ... you can pick and choose anything you want, but it assume you kknow why you picked tom-dick-n-harry hardware over mary-sall-janes better hardware combo package if you bought something that is not supported ... oh well ... - a common problem of wanting the fanciest newest/greatest/cheapest stuff that may or may not work I repeat, if you think that installing an OS is an operation that is possible without sullying your prestine brain with naughty documentation you...are...wrong. or if yu can find the install solution that owrks for all cases, you can have more $$$ tha uncle bill ( ms ), whom would also gladly want you to use their mostly inferior gadgets ( hw + sw ) instead of linux c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Software RAID problem - disks names change in case one fails
On Fri, 9 Sep 2005 [EMAIL PROTECTED] wrote: I'm testing a server before I put it in production, and I've got a problem with mdraid. The config: - Dell PowerEdge 800 - 4 x 250 Go SATA attached to the mobo - /boot 4 x 1 GB (1 GB available)in RAID1, 3 active + 1 spare - / 4 x 250 GB (500 GB available) in RAID5, 3 active + 1 spare No problems at install, and the server runs OK. Then I stop the server and remove /dev/sdb to simulate a hard disk failure that has caused a crash and a reboot. purrfect test and do the same for each disk it is pointless to have 1 spare disk in the raid array - have you evern wondered about other folks that try to build a sata-based raid subsystem ?? - how did their sata pass the failed disk test if it reassigns its drive numbers upon reboot With the second disk removed the disks names are changed, exactly that is the problem with scsi - pull the power cord from it to simulate the disk failure or pull the sata cable ... - in either case, if the disk drives rename itself, based on who's alive, raid won't work to boot after the failed disk ( but it will stay running until its booted ) the 3rd disk /dev/sdc becomes /dev/sdb and the 4th disk (that was the spare disk) /dev/sdd becomes /dev/sdc. thta's always been true of scsi During the boot process md detects that there is a problem, but then complains it can't find the /dev/sdd spare disk and the boot process stops with a kernel panic error. exactly c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Multihead
On 9 Sep 2005, Jeffrey Alsip wrote: I have succeeded in getting my Colorgraphic four-port video card (S3 Savage4 chipset) to function under Debian! All four monitors now show a clear crisp display. However, my efforts have failed to get me mouse and keyboard access to the three displays beside the primary one. The HOWTO's that I have referenced were very helpful in getting the cards and monitors properly configured...but sy almost nothing about the mouse and keyboard. which howtos, what options did it say to use Does anybody have a suggestion as to what I might be doing wrong? the kb follows the mouse .. which ever xterm is active, is the one assigned to the kb - how did you get to the other screens ?? changing DISPLAY .. export DISPLAY=:0.1 export DISPLAY=:0.2 export DISPLAY=:0.3 export DISPLAY=:0.4 or with xinerama ?? - do you want all 4 screens to be the same or different data on each - http://Linux-1U.net/X11/Dual c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: offline ?? Re: sendmail trouble
hi ya james On Wed, 7 Sep 2005, James Vahn wrote: i don't know if this was meant to be offline .. Whoops. :-) too late now .. but you can repost back to the list .. FEATURE(`access_db')dnl FEATURE(`blacklist_recipients')dnl FEATURE(`greet_pause', `1')dnl .. It will also cause local and LAN traffic to pause, so read the section on how to set GreetPause: localhost 0 in access.db yeah.. and any other gotcha's along the way .. - i tend not to read docs ... but do read um before i give up or post questions ... - if it doesnt work out of the box, having to read things to get it working is a bad thing in my book - and i go bonkers on incomplete howto and wiki .. :-0 snipplets drove me nuts when i didn't know what else to do with it, so i have some samples in its entirety http://www.Linux-Sec.net/Mail/Sendmail/ http://www.Linux-Sec.net/Mail/etc.mail/ I'll have to go look. Here's another one to cause them grief: define(`confBAD_RCPT_THROTTLE', `2' )dnl i haven't seen/used that one at all ... more stuff to do ( later ) :-) and worst still ... there'll be lot more reading when sendmail-x comes out and i skipped figuring out all the milter stuff too thanx alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: my first raid disaster on reboot :o( update
hi ya ken On Thu, 8 Sep 2005, Ken Walker wrote: == which is it .. - raid1 or raid0 .. big difference betweenthe two /dev/md7 using /dev/hda,/dev/hdc /dev/md8 using /dev/hab,/dev/hdd the whole disk or /dev/hda1 and /dev/hdc1 ?? - its a good choice for /dev/hdcxx and /dev/hdcxx but it'd be better for hda+hdd and hdb+hdc mdadm -C /dev/md7 -l1 -n2 /dev/hda /dev/hdc why ?? I checked with Fdisk that they were all set as FD. good And on reboot only md0 would mount. and what is /dev/md0 ??? - its not defined above So i copied the original mdadm.conf back and rebooted, and all the raids apart from md7 and md8 started. presumably you have /dev/md0, /dev/md1, .. etc.. etc copying mdadm.conf files is not a good idea unless its all configured the same way ... The system booted up properly this time but again without md7 or md8, it did its corrupt superblock or ext2 file system complaints. :-) moving files around and/o incorrect mdadm commands DEVICE/dev/sdb1 /dev/sdc1 ARRAY /dev/md0 level=raid0 num-devices=2 raid0 means 2-small-disk is combined to look like 1 big-disk - ie, there is no redundancy ARRAY /dev/md0 level=raid0 num-devices=2 UUID=410a299e:4cdd535e:169d3df4:48b7144a DEVICE/dev/sdb1 /dev/sdc1 Which way round should it be? if you're referring to the order of array, uuid and device, it shouldn't matter unless things changed that it is order sensitive I have also read that a mdadm.conf file isn't really needed, but can be helpful, if i hide me mdadm.conf file will the system boot with md7 and md8. i'd say you have some undefined ( unknown ) /dev/md devices I do have those two raids in my fstab file at the end as /dev/md7 /Cad100 ext3defaults 0 2 /dev/md8 /Cad200 ext3defaults 0 2 and where is / /tmp and /var etc defined the system should boot with /dev/md7 and /dev/md8 commented out, otherwise you ahve system problems ... in additiona to corrupted raid devices The SCSI is split up into / /usr /var /swap /tmp and /home, each set as a raid1. goood but here you said raid1 ... the previous config files you showed referred to raid0 The IDE's are set up as raid1 on the ide channels, such that hda is mirrored with hdc and hdb is mirrored with hdd. its a good start .. but it will nto guarantee that you cn boot, because you do NOT have a master disk on the 2nd raid pair ( some bios' is picky ) I had to move the system today so powered down with shutdown -h now. good On reboot i just get / mounted ( i think ) and everything else says mdx corrupt superblock or such and not a valid ext2 fs. corrupt superblock means your eitehr your fs is corrupt or your raid is broken ( not really working raid ) all the mirrors were set us as ext3 and when it was up and running /proc/mdstat said all was well. what is its output ?? c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
offline ?? Re: sendmail trouble
hi ya james i don't know if this was meant to be offline .. On Wed, 7 Sep 2005, James Vahn wrote: yup.. but in 1 minutes.. you're completely done w/ antispam I've found that these help a lot too. If the headers don't pass the tests, the data never comes across the wire. They are described in cf.README and really silence most of the noise. FEATURE(`access_db')dnl FEATURE(`blacklist_recipients')dnl FEATURE(`greet_pause', `1')dnl i don't use greet_pause .. i have no time to sit and test it out .. :-) snipplets drove me nuts when i didn't know what else to do with it, so i have some samples in its entirety http://www.Linux-Sec.net/Mail/Sendmail/ http://www.Linux-Sec.net/Mail/etc.mail/ c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: sendmail trouble
On Tue, 6 Sep 2005, James Vahn wrote: Sendmail/Exim/Postfix/Smail have all had security vulnerabilities reported as recent as this year. yup ... xxx is not usually better than yyy for certain metrics .. - being better at one thing doesn't mean its better in general - a working system is my metric for what works and how long it takes to get there, and how many vulnerabilities was in fact exploited successfully in the same time period ( last 3 mon, last year ) - people should hopefully learn from grandpa sendmail mistakes The examples I can think of are very few. Using m4 macro's is not complicated.. Exim is complicated. m4 is trivially simple, once you figure out what to put where at least in terms of sendmail macros editing sendmail.cf directly implies either you're an expert or the town [EMAIL PROTECTED] :-) -- and should NOT be the reason why xxx mta is better - i played with postfix/exim/qmail/smail ... and they all have config problems ... most do not work out of the box by simply installing it but its getting there - than add messy things like which antispam and antivirus and you got more config headaches Well, I'm not exactly convinced that anyone should be saying anything like dump sendmail, run postfix or exim (a poor quote, sorry). Do they yup... unless it addresses a particular problem/feature that the other mta does nto support have nice config/setup programs? huh ?? what's that ... :-) though if one takes a step back.. it should be trivial to make an mta-gui - you need to know the domain name - you need to know what the outside world see as your outgoing email server ( mail.xxx.com ) - you need to know what other domains this mta supports - you need to know which rbl you want to use if any - you need to know which antivirus app you want to use if any click ok to run ... I don't like sendmail's very much, it requires manually editing sendmail.conf. Not a particularly difficult task, but still.. :( yup.. but in 1 minutes.. you're completely done w/ antispam c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: using the 'find' program
hi ya
On Mon, 5 Sep 2005, Stephen R Laniel wrote:
On Mon, Sep 05, 2005 at 09:12:41AM -0400, Kevin Coyner wrote:
cd /tmp
touch testfile
find . -iname testfile -print
and I get nothing.
find --version
GNU find version 4.2.24
ls -la /tmp/ls.txt
find /tmp -name ls.txt -print
find /tmp -name ls.txt -ls
find /tmp -name ls.txt
returns stuff ..
- each of these has many other equivalent solutions
to find changes in the last 7 days
find /etc -mtime -7 -ls
to find changes ONLY on Sep 1 ( 4 days ago )
find /etc -mtime 4 -ls
to find anything that has foo in the name
find /etc -name \*foo\* -sl
to find only symlinks
find /etc -type l -ls
to find only directories
find /etc -type d
to find only files and symlinks
find /etc \( -type f -o -type l \) -ls
to remove core files .. but its dangerous, so check it first
find /etc /root /usr -name /core$ -ls
find /etc /root /usr -name /core$ -exec rm -f {} \;
find /etc /root /usr -name /core$ -print | xargs rm -i
.. endless list of stuff ..
On my end that works perfectly. You do, indeed, have the
syntax right. Here's what I get:
(09:16) [EMAIL PROTECTED]:~$ cd /tmp
(09:16) [EMAIL PROTECTED]:/tmp$ touch testfile
(09:16) [EMAIL PROTECTED]:/tmp$ find . -iname testfile
./testfile
c ya
alvin
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Re: Compiling Kernel for Bootsplash: The Whole Seven Metres.
On Mon, 5 Sep 2005, David R. Litwin wrote: My appologies: I really, really want Bootsplash. than you be able to make it work yourself, as it is tons of work As I wrote (and so alluded to), my computer IS re-booted quite a bit. bad boy ... i asume you do know, that your system is statisticly more likely to die exponentionally each time you reboot your PC.. the more you reboot it, the lifespan of your machine just wend down significantly - i bet you do not have working PCs that are 10 years old and still doing its mail/web magic Besides, it's æsthetically pleasing (to me) than when bootsplash is working, you'd be a happy genious Any way, have you any advice to get me closer to me goal of Bootsplashedness? http://linux-boot.net/Splash/ and doing x11 stuff in framebuffer is equally fun and a good techi-ness status c ya alvin
Re: automate printing of html-formatted pages?
On Sat, 3 Sep 2005, Matt Price wrote:
images makes simple cat $html not work either, otherwise,
cat $html | lpr -Ppostscriptprinter -
wouldn't this just print the text that is contained in an html file (as
opposed to a rendered/formatted html page?
good point, probably ...
how about:
while ( have-html-pages ) {
konqueror option-to-display-to-stdout http://any-web-page \
| lpr -Ppostscript -
}
ie .. let mozilla/konqueror/galeon do your rendering locally
but to dump to STDOUT instead
I like the idea of having a real browser do the hard work of managing
the display -- but I'm not really quite sure how an
option-to-display-to-stdout would work. I don't see any such option
in the man pages for konqueror or firefox,
the option to be found is the trick and/or modify the source
to display to stdout instead of $DISPLAY:$xterm ( whatever its called )
and in any case I'm not
confident that this would result in a postscript file suitable for
piping to the printer... Am I missing the boat here?
we're just trying to have the script hit the print button automatically
for you/us
-- tk/tcl and/or expect will do the trick ( interactive scripts )
if the option-to-display-to-stdout doesn't exist for the browser
c ya
alvin
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Re: IDE mondorestore DVD to Perc4 Raid machine
On Fri, 2 Sep 2005, John Fleming wrote: Now I want to use the 600SC's mondo backup DVD to restore (clone to) a Dell PowerEdge 1850 with a perc 4eid raid 1 controller. Note that I can install Sarge from scratch (not the mondo backup) on the 1850 with a 2.4 kernel just fine. However, the 2.6 kernel installer doesn't recognize the SCSI drive array. isn't it fun ?? .. job security .. - you're running into ordering problems .. - which modules are run against the hardware in which order - prev sda is now sda in the new kernel if at all etc, - insmod the modules for the missing scsi and ide controllers - if the modules doesnt exist or doesnt load, you have no choice but to use a newer kernel - all these probelms diappears when you build your own kernel and you may or may not have to remapp sda to sdb and vice versa Similarly, when I try the monorestore, it doesn't recognize the HDD. I've tried using DVDs made with mondo running with a 2.4 kernel as well as a 2.6 kernel - neither recognizes the HDD. missing ide or scsi modules Anyone done this and know how to get mondo to recognize the perc 4eid raid controller as a logical HDD? perc4 is a supported (linux) driver in newer kernels c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: automate printing of html-formatted pages?
On Fri, 2 Sep 2005, Matt Price wrote:
...
wget -m -k http://some.website.com/
and then:
#! /bin/bash
find /path/to/top/level -type f -iname *.html | while read file; do
html2ps -gn $file $file.ps ;
done
find /path/to/top/level -type f -iname *.html | while read psfile; do
lpr $psfile
done
unfortunately, this doesn't work very well -- among other things,
images makes simple cat $html not work either, otherwise,
cat $html | lpr -Ppostscriptprinter -
how about:
while ( have-html-pages ) {
konqueror option-to-display-to-stdout http://any-web-page \
| lpr -Ppostscript -
}
ie .. let mozilla/konqueror/galeon do your rendering locally
but to dump to STDOUT instead
c ya
alvin
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Re: Multiple monitors?
On Sun, 28 Aug 2005, Hugo Vanwoerkom wrote: Jeffrey Alsip wrote: Is it possible to run multiple monitors under Debian? If so, what steps are necessary? http://www.Linux-1U.net/X11/Dual/ look for the MultiUser section c ya alvin Better yet: get 3 more keyboards, 3 more mice and you can accomodate 4 users on your box: http://www.ltn.lv/~aivils/ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: subscribe - unsubscribe
hi ya david On Wed, 31 Aug 2005, David Jardine wrote: On Tue, Aug 30, 2005 at 08:52:07PM -0700, Alvin Oga wrote: - oddd ... somebody needs to feed the leprichons(sp?) Leprechauns, I think, but gremlins, gnomes, elves... are easier to spell :) ah .. you saw the post ... i got my own post within a second or two .. and a few other deb-user stuff along the way let's see how long it goes before they need feeding again c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
subscribe - unsubscribe
hi ya debianites - is it just me or did the same happen to some of you too?? - i had to resubscribe to get some debian-user emails - bunch of debian-user up until about Aug 27 22:56:58 and last one and only one at Aug 28 05:21:40 and cold-turkey till now for deb-user and no error messages in the logs here of any incoming attempts - in the meantime, i kept getting debian-security posts and others - i was thinking, debian-user went down but i saw the archives had some traffic, so maybe it was a new spam filter ?? - i thought i'd try to check the subscribe : - if i'm in there, i'd be getting a i'm already subscribed reply but it didn't flag an error - if i was in there, i'd get 2 deb-user posts when it starts up again ... so far only 1 of each - oddd ... somebody needs to feed the leprichons(sp?) and nope, i didnt unsubscribe c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Sendmail woes
On Thu, 25 Aug 2005, Derek The Monkey Wueppelmann wrote: It used to be that when I went into the /etc/mail directory and made changes to the access file then typed make, the access.db file would be updated and I could then reload sendmail. It seems now with Sarge that it does not do this update, if I do a make access.db, the access.db file is updated correctly, but I have to be explicit about it. Am I missing something? use sendmail from sendmail.org ... and it'd work fine you will also need to have the proper support files in addition to access http://www.Linux-Sec.net/Mail/etc.mail/ c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Debian Wiki Down: Permanantly?
On Thu, 25 Aug 2005, C Shore wrote: I've confirmed that that debian wiki is down for others as well as myself, so I am wondering if anyone knows whether it has disappeared permanently or if it will be back soon. (http://wiki.debian.net) how was it verified ?? the site comes up for me ... ( am in sili-con-valley ) but than again, i dont know what all its conteents was before compared to what i see now ... lots of wiki links and stuff c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Debian Wiki Down: Permanantly?
On Thu, 25 Aug 2005, kamaraju kusumanchi wrote: C Shore wrote: (http://wiki.debian.net) Does not work for me and has been like that for the past 2 days. Nothing loads and the request just times out. I currently live in Ithaca, NY, USA. and what does traceroute show ?? as where the problem might be traceroute security.debian.org - lots of alternet - lots of savis.net ( they're confused ) - finally in *.nl with xs4all.net - klecker.debian.org (194.109.137.218) traceroute wiki.debian.net - lots of alternet - lots of sprintlink.net ( they're confused too ) - capitalinternet.com ( whacky uplink for wiki ) - d3dw.gweezlebur.com (208.4.52.75) don't forget that it the isp upstream decide to change their routers and other infastructure, you're stuck until all the old dns records are automatically updated/refreshed ... some updates in a few hours, or a day or weeks, depending on the dns admin's whim and complicate it with caching by others c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: hacked: can't delete files
On Tue, 23 Aug 2005, Arne [utf-8] Götje ([utf-8] é«çè¯) wrote: On Tuesday 23 August 2005 12:57, Alvin Oga wrote: personally... i think any hacked machine should be looked over carefully to be able to answer the following: - who broke in - how did they get in - why did they break in ( sometimes there's no answer ) - where they came from - how many times did they come in - how many prev attempts did they try - how long before you noticed them - what other machines did they break into ( esp for those of you that like passwordless logins ) - what text files were read or edited - which binaries and libraries did they modify - what extra directories and files exists - what did they sniff and for how long ( passwds ) - .. endless list .. Nice... can you also provide some info on how to find answers to these questions? This would be very useful... just in case. :) it's not one place or a document .. its a lot of work to find those answers stuff in no particular order .. but more for your thought process to attempt to answer the above questions ... first step ... - backup everything BEFORE you are hacked and do not overwrite last week or last months backup - change all your loginID and passwds - disallow everything insecure... which could be a weeks worth of changes to any system from a basic cdrom install ( no pop3, no telnet, no ftp, no dhcp, no wireless, no vpn, etc ) 2nd step ... - decide if you are gonna prosecute any successful breakins and how you are gonna do that and why and follow police process and proceedure ( get them involved asap ) 3rd step ... - to do forensics, how much time does it take ?? maybe a few hours, maybe a few weeks ... is it worth the time ?? - first check all your binaries are intact against your backups and other duplicate systems ( or use knoppix or equivalent to check your hacked disk ) - take that hacked disk offline or not and you'd of course have a different backup system running all your services except for the vulnerability that was exploited - personally, i prefer to leave the hacked disks unaltered to see and watch them live and hopefully everybody ( law enforcement ) is also watching the 2nd time around that we can pinpoint where the cracker is 4th step ... - look over all your files... one by one to see what they changed or edited or removed ... - anything left over is what they left for you to use to track them down .. - obvious thing is to look at log files, but smart crackers will wipe out or clean the /var/log before they leave - no magic about how to find all those answers ... just lots of time and preparedness fun stuff ... c ya alvin
Re: portmap and rpc.statd
On Mon, 22 Aug 2005, Matthew Lenz wrote: Are these services needed if I don't intend to use NFS on any of my machines? Also, I do have a couple servers that need portmap (i guess some licensing service needs it for one software package we run) but does that also mean that I need statd? .. just trying to minimize the running services on these boxes. nope .. none of um is needed and while you're at it: - put ALL:ALL in /etc/hosts.deny - turn on what you want in /etc/hosts.allow and if you want, there's about a weeks worth of patches/hardening too c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Boot Instal thru Loadlin and initrd image
On Tue, 23 Aug 2005, Frans Pop wrote: On Wednesday 17 August 2005 06:12, Avid LinuxHacker wrote: A reply to my installation question in the users forum has raised a concern that I am hoping someone here can resolve quickly. The respondant to the loadlin initrd boot/install question stated that it is no longer possible to do an installation by booting thru an initrd image. Is this true? Here is the thread in question. booting with initrd will always work, as long as the kernel has initrd support in the kernel otherwise, you're blowing into the hurricane c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: hacked: can't delete files
On Tue, 23 Aug 2005, Dalibor Straka wrote: ... ns:/usr/lib/libsh# rm -rf * rm: cannot unlink `hide': Permission denied rm: cannot remove directory `utilz': Permission denied fun stuff ... This could be caused by modified rm or some kernel module. The easiest way is to boot to knoppix and remove this. Then delete the whole system and install new ;-) if you're gonna re-install ... - just wipe the disk and install, why bother with knoppix ?? personally... i think any hacked machine should be looked over carefully to be able to answer the following: - who broke in - how did they get in - why did they break in ( sometimes there's no answer ) - where they came from - how many times did they come in - how many prev attempts did they try - how long before you noticed them - what other machines did they break into ( esp for those of you that like passwordless logins ) - what text files were read or edited - which binaries and libraries did they modify - what extra directories and files exists - what did they sniff and for how long ( passwds ) - .. endless list .. - reinstalling a hacked box is the worst thing to do in my book but by the same token is the best if you don't want to answer the above questions, esp how did they break in - since they sniffed ytour wire, what's yur new passwd or are you gonna use the same loginID and passwords ?? ( why bother reisntalling if you don't at least change these ) - remove their trojans, apply your patches and see if they can break in again ... they willl probably be back to knock on your door again, but more quietly the 2nd time - change your passwd only on the local console, and NEVER change passwd remotely - gazillion things to do after a breakin ... - it's 1000x cheaper to prevent the initial breakin .. c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Securing NFS
On Fri, 19 Aug 2005, Laurent wrote: Exporting the whole /home directory would put data security at risk since creating an account with the 'right' uid on a workstation would grant access to user files. i assume you're looking for: - only users can see the files they own/create, and cannot see others files ... - if more than one person has group permissions, there is no way to prevent them from looking at each others data if its on the same server - never export /home if you're worried ... and export /home/user1 only to user1 and /home/usr2 to user2 My question is: How to allow any user to use any workstation (Authentication through LDAP) without putting data security at risk, that implies you have a good security policy that the managers of the ocmpany also believe security is important and will enforce the rules including termination or severe punishment or removal of priviledges for violations good policy: - document anything and everything that affects security and data and access to it - apply and test all upgrades before deployment ( proper testing distinguishes the me too from the pros ) - backup everything and encrypted someplace else - assume they are peeking at the sensitive data and see if you can find who, what, when, where, how - harden NFS ... disallow root logins, allow only certain ip# to nfs mount directory specific resources ( /home/user ) - run secure NFS daemons, including kerberos if needed - endless list of hundreds ( :-) ) of things to do .. - disallow dhcp, disallow wifi, disallow vpn, ... - disallow yahoo, aol, hotmail, gmail, icq, aim, etc ... c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: replacing failing system disk
On Sat, 20 Aug 2005, Shea Martin wrote: My hda is going south. I have a good (crosses fingers) disk as /dev/hdb right now. My plan for migration is this: 1. fdisk /dev/hdb, and create similar partion scheme on hdb. 2. newfs all new partititions, mkswap on swap partition. 2. from knoppix, cp -a the contents of /dev/hda to /dev/hdb. copying the contents off fo failing disk will only aggravate it even more and there's no guarantee your data you copied off is not corrupted you should restore data from known good backups PRIOR to you noticing the flacky disk --- disks goes flacky because: - bad cables or bad cable twists and turns - disk running too hot, but you should alwways have a dedicated fan per 7200rpm disk - endless list of stuff to check 3. chroot to the / of hdb, and run grub. that will break ... you need to change menu.lst and grub.conf to be able to install the new mbr into hdb - the device map and orders and syntax will be different with hda vs hdb vs both present etc..etc.. or as you say ( to do stuff and pray ): dd if=/dev/hda of=/dev/hdb count=1 bs=448 power off .. than move hdb to where hda used to be and it should work as a replacement for hda 4. poweroff, pull hda, make hdb the new primary-master (aka hda). 5. boot and pray. don't forget to donate 10% of your income to the gods ;-) c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: replacing failing system disk
On Fri, 19 Aug 2005, Bryan Donlan wrote: On 8/19/05, Alvin Oga [EMAIL PROTECTED] wrote: or as you say ( to do stuff and pray ): dd if=/dev/hda of=/dev/hdb count=1 bs=448 power off .. than move hdb to where hda used to be and it should work as a replacement for hda Note that this will break if the new hdd is smaller than the old, and might break if it is a different size or has a different geometry. note ... it only copies the mbr .. NOT the whole disk .. nothing will break ... try it c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
cheap -- Re: weird characters
On Thu, 18 Aug 2005, Vikki Roemer wrote: Heh, yeah, *should*. But it's a cheap, sorry MB with a cheap, sorry bios, so it doesn't. you can also do what the bios should have been doing by using lmsensors and check the cpu temp and dead fans with lmsensors you can check the disk temp with hdtemp and when those sensors say you got problems... you(aka cron) run shutdown now For the record: never buy cheap hardware, especially Elite Group motherboards. every manufacturer makes [EMAIL PROTECTED] every once in a while, and some vendors are worst than others ... and EGS is one of them to avoid in general as are 10 other manufacturers ... - i typically buy intel, tyan nowdays and 2nd choice is via for mini-itx, which means there's not much choice either, so the customer picks their favorite vendor and they get to run up their time to debug bills as they watch why its a bad choice for their favorite tom-dick-n-harry distro - i just spent 4hrs debugging a bad mb ( brand new ) and wound up tossing 3 of um ... and another no-name-brand mb worked fine the first time with the same cpu/mem/disk - dell is good [EMAIL PROTECTED] .. tons of $$$ to make on that junk which is probably the worst of the bunch due to their customized this [EMAIL PROTECTED]@ and dellized that [EMAIL PROTECTED] - you can't give me dell pc to use, but i'll take all your customers that has dell and compaqs - cheap is okay .. as long as you know why you got it and if you used it before from that particular store - i buy shit from 1 primary vendor ( distributor which requires a reseller permit, and the rest of misc junk from local stores and worst case, buy non-critical parts at fries - fries has too many gorrilla tossing boxes/cases of disk drives onto the shelf or pallet ... you ahve about 25% failure rate within the year and about 75% chance the rebate check never shows up ( a scam worst than the nigerian spam scam ) c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: weird characters
On Wed, 17 Aug 2005, Vikki Roemer wrote: Hi, My problem is, after I had to reboot (computer overheated again), what overheated ?? the power supply ?? - your fans should be working on the ps - if its blowing too much hot air... throw your ps away the cpu ??? over heated and shut itself down by itself ?? - a fried cpu will work only intermittently the disk got too hot ?? - a fried disk will work for some things but not other parts of the disk the memory stick got too hot ?? - throw it out Anyway, my question is, how do I set i back to the ascii (i forget the number) charset? I forgot what command I used to change it in the first place. :( without seeing what you mean by overheated again i think you're something-or-other is fried beyond repair ... - start moving pieces around onto anohter working system and see if the suspect fried part works on the other system - do NOT use a suspect bad PS on a good system as you'd create a 2nd bad system ( there's no need to test for a bad ps... throw it out and get a new one for $20, unless you like to play with blue smoke :-) c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: weird characters
On Thu, 18 Aug 2005, Vikki Roemer wrote: Ok, the problem is, I have a processor that runs hot, and I have as many fans as possible in the system (including putting an 80mm case fan on the CPU with an adapter), and it still tends to overheat. It will not shut form the rest of the stuff below ... your disk system is corrupted - if your system boots properly .. and x11 looks oky fro a while ... i'd bet the cpu is still okay... - if you, or anybody, has to hit the reset or power switch at least once, i say the machine is misconfigured ... or something is seriously wrong with the existing hardware ( i'm finicky about things working right esp if means losing data if something is known to be wrong/flaky ) - reset and power switch should be hands off - if you have a heat problem - take the covers off - put a standard $20 household fan on it and blow the [EMAIL PROTECTED] out of it ... skip all those mickey mouse 40mm/80mm/120mm fans - the bios should should down the cpu in its health monitor section if it has the capability .. otherwise, put an egg on it and have breakfast sometimes .. c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: System backup/snapshot
On 16 Aug 2005, [EMAIL PROTECTED] wrote: I want for example perform some updates on the system that may be upgrading/changing of debian packages, some files or firebird database. If one of the update tasks failed i want be able to restore complete previous system before all updates occurs. Is there are general solutions for this? daily: tar zcvf /opt/BACKUP.date.tgz `find /etc /home $TYPE -mtime -90 -print` once a month, or however often you're paranoia tells you to do full backups tar zcvf /opt/BACKUP.date.FULL.tgz `find /etc /home $TYPE -print ` - where TYPE == ( -type f -o -type l ) - mount, sync, unmount before and after the find | tar - grep out anything yoou do not want backed up, add anything else you want c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Briefly Making a Botable Floppy with GRUB
On Tue, 16 Aug 2005, Jon Dowland wrote: On Tue, Aug 16, 2005 at 12:11:42AM -0400, David R. Litwin wrote: I found this from the Archives: ... but I do not know what the cp stages one and two means, and the text in parenthesis. Those instructions seem to omit putting the stage1 portion of grub into the boot sector. I could be wrong, but I don't think the resulting floppy will boot into grub properly. you will also need the filesystem type ( e2fs_stage1_5 or xfs or reiserfs, etc ) you will also need to know how to create grub.conf and menu.lst and devices.map ( a correct one, that you know what to change to make it work on your system -- depending on where you built vmlinuz and what disk/partition you are trying to boot on the target system ) making a (properly working) grub boot floppy is very tricky biz.. you should know how to make: - a standard boot floppy: dd if=kernel of=/dev/fd0 .. - lilo boot floppy: lilo -C /etc/lilo.fd.conf where boot=/dev/fd0 - syslinux boot floppy - than try a grub boot floppy I did have a good write-up somewhere which explained it (I think it was just dd'd onto the front of the floppy device) but I can't find it now. I expect I just googled for 'grub boot floppy howto'. dd if=/dev/working-grub-device of=/dev/fd0 bs=446 count=1 where working-grub-device is for example: /dev/hda c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Reading an autocad dwg file
On Tue, 16 Aug 2005, Marco Scholten wrote: What tool could I use to read a dwg autocad file? You could try LX-viewer (http://lx-viewer.sourceforge.net/). There is also BricsCad, a propietary autocad clone wich runs under linux. ( semi complete list of ) autocad readers and editors http://linux-cae.net/CAD/ c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Backup/Restore debian package
On 16 Aug 2005, [EMAIL PROTECTED] wrote: Is there is a way to save/backup debian installed package ? if you do your own stuff... you should create your own *.deb pkg if you create pkg.lst BEFORE you apply apt-get update/apt-get upgrade, than you will always have the state before any pkg that crashed your system - to backup your existing deb box dpkg --get-selections * /mnt/floppy/pkg.lst save your config files separately ( /etc, /usr/local/etc ) and any place else you modified config files - to restore your system to a previous state install a minimal system dpkg --set-selections /mnt/floppy/pkg.lst restore your config files \\\ all that is 1 or 2 command lines == opinion == if you have to restore your system, you're doing something wrong == == ie, do NOT test on critical systems that you need to recover when == it breaks, esp if you cannot recover to any random day at any == time to simulate that your backup/restore is working right == == /opinion c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: System backup/snapshot
On 16 Aug 2005, [EMAIL PROTECTED] wrote: I need to save several versions of the backup on the local disk and be able to restore it when system is running. it is practically impossible to (randomly) restore a running system and if you can do that, you'd be a multi-billionaire it will restore files that is not being used at the time or previous commands and system status c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Network card recommendation - testing
On Tue, 16 Aug 2005, Anders Breindahl wrote: Please educate me: What exactly determines a NIC's reliability? What defines its effectiveness? use 2 machines for all tests, but use the same nic card in both machines scp machine1:/opt/test/10MB.tgz machine2:/opt/junk try the same test with another pair of nic cards during the tests... if you see stalled as an error message/warning for scp: - throw that nic card away .. - or throw away the switch/hub (don't use one if you want to eliminate the hubs/switches and use a cross over cable instead) - or throw away your ethernet cables - you cable should be xx' long and no more than 2(?) switch/routers between 2 machines .. - or throw away the kernel and drivers - or change your tcp/ip variable options - or ??? - you should be able to run at 50% - 75% or faster of sustained bandwidth between any 2 machines - 100Mbps -- you should see 8MByte or 10MByte per sec transfers ( 1 second to transfer a 8MB file ) - given a choice .. - i'd use intel chipsets ( on the motherboard ) or pci cards - i'd avoid broadcom chipsets unless you know how to tweek the kernel drivers c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: sendmail
On Thu, 11 Aug 2005, Steven Jones wrote:
Anybody got some recommendation on tuning sendmail to reject spam?
Things like mis-behaving remote smtp server or servers not in dns ie
domain does not existlow cpu overhead stuff
in your sendmail.mc, just add a couple of lines and re-generate
sendmail.cf ( zero cpu load stuff )
.. list of your fav rbls ... 3-5 of um ..
FEATURE(`enhdnsbl', `bl.spamcop.net', `Spammer ${client_addr} $f
rejected by RBL: http://bl.spamcop.net')
FEATURE(`enhdnsbl', `dnsbl.njabl.org', `Spammer ${client_addr} $f
rejected by RBL: http://dnsbl.njabl.org')
=
examples sendmail.mc files w/ RBLs checking
http://www.Linux-Sec.net/Mail/etc.mail/sendmail-8.13.3/
http://www.Linux-Sec.net/Mail/etc.mail
c ya
alvin
--
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RE: sendmail
On Thu, 11 Aug 2005, Steven Jones wrote: But Im not allowed to reject based on rbl's, we tried that and in NZ lots of companies use adsl and cable modems so we had huge issues and political flak. Such business broadband is being heavily sold by our major telco as a solution and trying to tell people who don't understand how to manage the box on the end of their connection is hard work. Those same people also have huge political clout as I have found out to my cost... if you can't use existing rbls .. - you can create your own local rbl of spam you did receive instead of assuming that those that are in the various rbls are in fact accurate which is not always the case - other option for sendmail is to use: - bayessian filter - milter - both of which is more than a minute of work like the rbl entries for sendmail.mc Stuff like not in dns and non-rfc compliance I can get away with though yup.. but even those can be tricky ... MX records are not required to send/receive emails sending hosts does NOT need to have reverse DNS to work work means that the non-techie sitting in front of windoze-XP and can send/recevie emails and giga-byte-attachments w/o any problems work correctly for techies can be flame bait .. and as with all flame bait, is usually not worth the time on either party other than a good blood pressure and patience test as I can justify it by telling the remote admins to go configure their server properly (though even that is hard work as those same admins complain to my higher ups about us being anal) spammers obviously wont ask.. not all users have the ability to properly configure tehir sending mail servers or that the admin knows what to change or where .. or how .. spammers are not dumb ... they know exactly what to do to get around any/all spam filters... they're always 1-step ahead of us .. - worst case are soem of the hotels, that send mail out as localhost to get around the CEOs (in)ability to send outgoing mail on their laptop thru their corp servers in which, the corp email servers, should reject hotel guests from relaying emails from hotels thru the corp mail server vpn would be better, but than, if the ceo can vpn from the hotel room, so can the spammer .. endless problems.. good for job security .. c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: OT: Wireless questions
On Sat, 6 Aug 2005, David Purton wrote: I know, way OT, but I thought I'd pick people's brains on here anyway. I'm thinking about adding wireless connectivity to my home LAN. At present it looks like this: ++ | switch |-- wired private network ++ | eth0 | +-+ | debian linux| ++ | server/firewall |-- eth1 --| adsl modem |-- internet | gateway/router | ++ +-+ What is my best option? I was thinking of just putting another ethernet card in my server and getting a wireless access point to attach to it. by server, i assume you mean your debian box it'd be better to add a hub/switch between the dsl router and your debian box and plug your wifi card into a 2nd 386-based PC or buy a linksys wt54g with a modified firmware Then I could only allow traffic through to/from the wired network through a VPN (probably using openVPN, since I have used this before and it's easy enough to configure). wireless traffic over vpn is good and bad good.. that they cannot see its content in clear text, but since its vpn, they have access anyway unless you close off the vpn to allow just one mac address - good, always run wifi devices over ssh or vpn .. BUT .. anything you can do .. they can do tooo .. even more so if you don't use any passwd or pass phrase, so it'd be pointless - passwdless login is a free use-any-time key to the cracker they are the van outside the house or around the corner or behind the house or at starbucks or the high powered wifi antenna on the mountain top What are the disadvantages of doing it this way? what is important to you would decide which is better ... - time - ease to setup - data security - getting fired from the company because a cracker got into the corp lan from your wifi home network endless tons of disadvantages no matter which way you do it i opt for data and login security first ... time and costs is secondary or non-issue ... data cannot be replaced/bought unless your backup scheme is self checking and self correcting and secure And what hardware would you recommend to get this setup to play nicely with linux? see above any pci card will work -- if you want your own AP .. you will have to pick a pci card that is supported by a wifi driver linux-wireless.org/Drivers -- if you want your own AP with WPA... you will have to pick a pci card that is supported by hostap or madwifi -- if you buy off-the-shelf... - some netgear switches will not talk to linksys clients and vice versa ( s/netgear/any-commercial-product/g ) I guess the other option is getting a wireless router which I could attach to my switch. always put insecure wifi OUTSIDE the firewall bad idea to put wifi inside ( your switch ) How does this compare to using just an access point? Is it better? linux based AP is better ... - you can control what it does - there is no default passwds that you didnt change - you can use wpa, wep is broken and worthless for preventing prying eyes c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: OT: Wireless questions
On Mon, 8 Aug 2005, David Purton wrote: ++ | switch |-- wired private network ++ | eth0 | +-+ | debian linux| ++ | server/firewall |-- eth1 --| adsl modem |-- internet | gateway/router | ++ +-+ ... any pci card will work -- if you want your own AP .. you will have to pick a pci card that is supported by a wifi driver linux-wireless.org/Drivers -- if you want your own AP with WPA... you will have to pick a pci card that is supported by hostap or madwifi -- if you buy off-the-shelf... - some netgear switches will not talk to linksys clients and vice versa ( s/netgear/any-commercial-product/g ) mmm ok, So I don't need a hardware AP connected to an ethernet Card? nope... your debian box is doing all the routing so if you have a $20 wifi pci card, you'd route wlan0 or ath0 as your new eth3 in your debian box Just so long as the PCI card is supported bu the linux wireless drivers? yup.. check the list of drivers ... to see if you find your favorite card is easier to do than to take any random card and finding its drivers linux based AP is better ... - you can control what it does - there is no default passwds that you didnt change - you can use wpa, wep is broken and worthless for preventing prying eyes This was my initial thought. Linux-Wireless.org/AP - few debian based wap's too c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: grub and swapping out drive
On Tue, 2 Aug 2005, R Ransbottom wrote: I want to install grub to (hd1) so that it is ready to be used as (hd0). I have Debian 3.1r0a up. On /dev/hda2 (hd0,1) is my root. On /dev/sda2 (hd1,1) is a cloned root. I want to remove the IDE disk at /dev/hda and boot from /dev/sda2 which will then be (hd0,1). I have no floppy drive. By cloned I mean (modulo typos): fdisk /dev/sda; mke2fs -j /dev/sda2; mount /dev/sda2 /mnt; cd /; cp -ax . /mnt; cp -dpar . /mnt ( but i keep wondering how cp knows not to copy /mnt onto /mnt/mnt ) - watch out for permissions, dates, links, etc grub-install \(hd1\); too early for that, use: you will need to fix /dev/hda to say /dev/sda instead in all grub/lilo files and /etc/fstab and possible other places chroot /mnt grub-install /dev/sda or dd if=/dev/hda of=/dev/sda bs=446 count=1 or easiest and higher probability of it working to make a clone bootable is to make hda dual boot and boot into the clone and run grub-install while running off /dev/sda c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: DriveReady SeekComplete Error
On Sun, 31 Jul 2005, persall wrote: DriveReady SeekComplete Error that is usually: a) mixture of ide devices on the same ide cable - keep cdrom and dvd on its own cable - keep ata133 devices on a different cable than ata100 drives - bad ide driver ( aka motherboard ) - ... b) it can be cheap cables vs good ide ata-100 cables that is NOT stripped into itty bitty strands nor longer than 18 - throw those round ide cables away c) your disk could be running hotter than it should be d) somebody in the food chain dropped it ( aka toss the box around ) before you bought it but sold it to you anyway ... e) if it's the 16GB - 40GB ibm deskstar drives made in thailand, than throw those drives away ... f) if you're having disk drive propblems... backing it up now, will only aggrevate the situation and/or you should be worried that the backup you just did is correct vs corrupted - old backup data should never be overwritten with new backups until you know that the new backup is correct endless worries c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: rbldnsd setup
On Wed, 27 Jul 2005, Richard Cunningham wrote: Okay, I did the apt-get install rbldnsd. The documentation on setting it up is sparse. I want to run it stand-alone, without a dns server. Is there a step-by-step tutorial on how to do this? you do NOT need to worry about dns to run rbldns there's not many step by step stuff out there some other docs on rbldns # middle of the page http://www.UCEAS.net/RBL.Server/ c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: rbldnsd setup
On Thu, 28 Jul 2005, Richard Cunningham wrote: Alvin Oga wrote: some other docs on rbldns # middle of the page http://www.UCEAS.net/RBL.Server/ ... Thanks, but that refers to rbldns which is not the same as rbldnsd. you didn't seem to read the docs referenced .. whcih does include answers you're probably looking for ( how to setup blah blah and twiddle dee to get it working ) c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: 2 monitors on Nvidia GeForce 5700LE using x.org
On Fri, 22 Jul 2005, [KS] wrote: Hello, I was trying out x.org to use 2 monitors with my Nvidia GeForce 5700LE. After tinkering with the xorg.conf, I finally got the two monitors running using the AGP and the DVI ports(with DVI-AGP converter). and does it work right ??? - am guessing not Section Monitor Identifier Sony CPD E200 you need 2 of these Monitor definitions, unless both monitors is identical manufacturer and models Modeline[EMAIL PROTECTED] 83.91 1280 1312 1624 1656 800 816 824 841 throw this(any) Modeline away unless you can say why it is 1312 vs 1323 or any other random numbers Section Screen Identifier Default Screen you need 2 of thse Screen definitions Device NVIDIA Corporation NV36 [GeForce FX 5700LE] Monitor Sony CPD E200 you need to have a way to distinguish monitor1 from monitor2 Option TwinView true twinview is a different x11 driver than nvidia chipset you're using Option Xinerama on you can turn is on or off to see what it does to the stuff you see on both screens Modes 1600x1200 1440x900 1400x1050 1280x1024 1280x960 1280x854 1280x800 1280x768 1200x800 1152x864 1152x768 1024x768 800x600 640x480 messy ... Section ServerLayout Identifier Default Layout Screen Default Screen InputDevice Generic Keyboard InputDevice Configured Mouse EndSection the above should reflect left monitor and right monitor dual screen examples http://Linux-1U.net/X11 c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Debian and wireless network cards
On Thu, 21 Jul 2005, Leonid Grinberg wrote: Hello, I was asked by a friend to install Debian on his system. He asked me about which wireless network cards Debian supports. Can anybody tell me which ones (I personally don't use a wireless network so I wouldn't know). all wireless cards will work if you're willing to sacrifice features - linux can use the ndiswrapper and use the windoze driver from the cdrom that came with the nic if you want to build a wireless AP or wpa .. - you will need either the hostap driver or madwifi driver and see which cards it supports - be careful of old models and new models with the same part number but differs in which wifi chip is used on the pci/pcmcia cards --- if you want wep, you can use most any other linux supported wifi cards - if you're using wep as your security mechanism, than consider your machine pre-hacked and keep all your bank info elsewhere - run everything with ssh/ssl if you're paranoid ssh, pop3s, imaps, https, .. --- easier way: a. see what is on sale and search for the linux drivers b. see what your buddy is using and use that wifi card more wifi fun Linux-Wireless.org c ya alvin -- for those that are looking to do a mediaum range 5-10 miles wifi, i've got two 24db wifi antenna that we'll be testing -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: ModeLine - again - smoke test
On Tue, 19 Jul 2005, [iso-8859-1] Cláudio E. Elicker wrote: On Tuesday 19 July 2005 18:46, Paolo Pantaleo wrote: [I hope it is not too off topic] I found a nice HOWTO here http://en.tldp.org/HOWTO/XFree86-Video-Timings-HOWTO/index.html and i wonder how many people smoke'd their crt ... i have 2 of um :-) ie.. know what the modeline numbers mean when you change it or even if you do know what it means, are you willing to risk letting the blue smoke come out and the silly thing goes to la-la land and doesnt come back ( work again ) normally, with today's X11 server X -configurewill generate what you need X is usually a symlink to XFree86 or Xorg or ?? if you like 1024x768 or 1280x1024, you might need to add that to the: Section Screen Subsection Display Depth 16 Modes 1280x1024 1024x768 EndSubsection EndSection -- the Modes line is usually missing in the stanza and not the nitty-gritty gory numbers to define the timing defintions of the 1280x1024 the nitty gritty numbers are predefined in XFree86 or Xorg or whatever X11 driver you're using -- if you can see flicker on your screen, try turning off the florescent light, just to test that the screen doesnt flicker without florescent lights - if you can still see flicker, you will need to know all the gory details of the ModeLine definitions for your svga chipset and monitor manufacturer and model# c ya alvin that explains in deep how to set ModeLine entries for XF86Config. It talks about two automatic ModeLine generation tools: KVideoGen - http://paranoia.rulez.org/videogen/ [a CGI script] - http://zaph.com/Modeline None of these links seems to work, could it be for copyright problems? Thnx PAolo Videogen is in Sarge: http://packages.debian.org/stable/x11/videogen Just do a simple aptitude install videogen
Re: Replace /lib and /usr/lib on a server
On 15 Jul 2005, Felix Natter wrote: it is my task to create a complete backup+restore method of our woody-based web- and mailserver. The problem is: how can I restore /lib and /usr/lib/*.so* in a running system? Whenever I tried it (tar --overwrite) the system halted (IIRC a statically compiled tar didn't help). you can NEVER overwrite a file in a running system, unless it is an identical file - you can replace a running system's kernel but that too is tricky and fun biz the problem also apllies to all binaries in /bin /sbin /usr/sbin /usr/bin and eanything else in the sytem if you want to restore into a running system ... and you can do it properly, you'd be an instant millionaire ?? best way to do a complete backup and restore - rsync the master system into the slave box except for ip# and hostname ( the salve system is alway ready to take over since the last backup ) - backup too often and the original problem that cause the master to die will propagate and kill the slave too ( ie.. you'd need to know why your master died in the first palce ) - rsync is dumb ... it will propagate failures - do overlapping full and overlapping incremental backups just in case yesterdays full backup failed and you dont notice it till 2 weeks or months later when the system dies - gazillion do it this way or that way suggestions depending on who you ask - big questions ... - how time is lost if the backup and/or restore didnt work - backups should be 100% automated and self correcting and self checking ( no time to run .. just a few hours to setup properly ) - soemthing else is seriously wrong if you have to restore - how much $$$ is lost $$$ lost due to crashes should be more than say 3x-5x of the costs of all the preventative backup and restore methodology - how long to get back to normal operations ( should be under 5 min ) c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Wireless PCI Cards - Which Work?
hi ya thomas On Fri, 15 Jul 2005, Thomas H. George wrote: Actually I know my Netgear MA311 works but we just moved to a new house and the little antenna for the card was lost. I purchased a Netgear WG31l ($50) and Sarge with a 2.6.11 kernel didn't recognize it. The wg311 works great... if its v1 which uses the atheros chipset vs the common(newer) v2 which uses a different chipset madwifi driver and works with WPA client mode and as WEP ap mode http://Madwifi.net I did a Google search and found forlorn messages from someone trying to get a Linksys PCI card to work. I have one of those too and wasted over linksys tends to be broadcom chipset and will work as a wireless client with the ndiswrapper driver http://ndiswrapper.sourceforge.net/ http://www.Linux-Wireless.org/Wireless/Drivers/ Is there somewhere a clear summary of what works and how? no ... best up-2-date summary... - check the device drivers and the supported cards/chipsets http://www.Linux-Wireless.org/Wireless/Drivers/ c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: how do I get fullscreen mplayer - fun
hi ya vegard On Fri, 15 Jul 2005, Vegard|drageV wrote: Commonly this problem is if you haven't glx enabled with direct rendering enabled: direct rendering is enabled, wonder why it won't work automaticly? mybox# glxinfo |grep direct rendering xx direct rendering: No doesnt seem to be required to get full screen You should also investigate the -zoom option. I will try that, but not now since the next hint worked mybox# mplayer -v xx MPlayer 1.0pre7-3.3.4 mybox# mplayer -zoom -fs baby.mpg xx full screen with -zoom -fs worked for me You simply need to use xv as the video output. Launch mplayer with -vo xv, or set it to xv in the preferences if you use the GUI. This helped. mybox# mplayer -vo xv -fs baby.mpg xx It seems there is no Xvideo support for your video card available. xx Run 'xvinfo' to verify its Xv support and read xx DOCS/HTML/en/video.html#xv! for completeness mybox# mplayer -xo sdl -fs baby.mpg did whacky things to the movie.. oh well Thanks to all of you, you just saved a movienight!!! You are the best!!! ditto for those that is poking around for dynamically adding subtitles without modifying the original *.mpg files mybox# mplayer -zoom -fs -sub baby.SubTitle.txt baby.mpg http://linux-video.net/Samples/Mpeg1/ along with other sample mpeg movie trailers for more fun .. i will be playing with memencode ( someday soon, before end of july-2005 ) to encode some movie trailors off of the dvd i bought c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: epson R300 w/ cups - gimp-print
On Tue, 12 Jul 2005, Greg Madden wrote: On Monday 11 July 2005 12:19 am, Alvin Oga wrote: - next step .. to print fancy graphics directly onto the CDs ( guess what kind of CDs and it aint cd's w/ pics ) .. I bought an Epson 300 some months ago to print labels on Debian cd/dvd's. I had no problem using it with gimp-print/cups and printing documents, using Debian testing versions. I was waiting for Sarge to get released before figuring out how to do the label part. gimp-print is out for debian .. various sites carries various versions of gimp-print and gutenprint in *.deb files gimp-print-5.0.0-beta2 is out guntenprint-5.0.0-beta4 is out what is the difference between gimp-print and gutenprint ?? i'm thinking i don't need gimp-print-xxx since i can print onto paper -- i can already print to the epson r300 with lpr or gimp-2.2.3 or cups-1.1.23 ( port 631 ) or blah-blah-print-command lpr -PEsonR300 /path/tiger.ps ( comes out very nice ) it'd probably look better if i used photo quality paper there don't seem to be any option to tell the app to print onto the CDROM tray instead of 8.5x11 paper, though it has all kinds of other paper sizes .. if there was and it works, it'd be too simple == == what's the trick to getting cups/gimp to print onto the cdrom == c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Grub problem
On Tue, 12 Jul 2005, Eugen Wintersberger wrote: (I'm not sure if this was the exact error message). If I do the same installation procedure but install LILO the machine reboots as expected (means that the bootloader works). if lilo works ( boots properly ), than there is nothing wrong with the hardware - i assume you have a boot floppy or boot-cd in case grub wipes out the working lilo MBR what is your /etc/grub.conf and /boot/grub/menu.lst and /boot/grub/devices.map root# grub-install /dev/hdaor whatever is your disk - if grub doesn't work, download the latest CVS version for gnu.org c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: RealPlayer 10 for Debian?
On Tue, 12 Jul 2005, Roberto C. Sanchez wrote: Personally, I prefer to install .deb packages. However, there is no telling what sorts of post-install configuration RealPlayer needs. That may or may not translate well into a .deb package. their *.bin worked fine for me ... ( even on slack-10.1) but it doesnt understand their standard welcome.ra files :-) you always lose data or files when xx is translated into yy format, but that also depends on the hacker that made the translator c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
epson R300 w/ cups
hi ya fyi... contrary to some (cups) howto's epson stylus photo R300 w/ cups-1.1.23 seems to work fine :-) - it'd be my first printer to ever work w/ cups after fiddling with its config files for 8hrs or so - next step .. to print fancy graphics directly onto the CDs ( guess what kind of CDs and it aint cd's w/ pics ) c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Browsers get stuck on some websites. - kill it
On Mon, 11 Jul 2005, [KS] wrote:
I have been noticing some problems with web browsers last night. On a
few websites the browser hangs while loading the page. Most of the time
when Mozilla hangs, it shows in the status bar that it is waiting for
some advertisement website. Konqureror tells that it is loading the last
image of the page and hangs. Firefox shows similar behaviour. Example:
http://www.theweathernetwork.com
konqueror (randomly) hangs all the time on some sites ... just kill it
==
== yeah.. them silly ads sucks... along with js and java from them
== advertisers
==
KONQ=konqueror|kghostview|kio_http|nspluginviewer|kcookiejar|konsole
for pid in ` ps axuw | egrep $KONQ | awk '{ print $2 }' `
do
#
echo kill -HUP $pid..
kill -HUP $pid
#
done
c ya
alvin
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Re: grub splash image
hi ya [EMAIL PROTECTED] ( sorry couldnt resist ) On Fri, 8 Jul 2005, [UTF-8] ÃâÃ¤Ä vÃÑÅ©Å wrote: hello, i have a small problem, i am trying to add a splash image to my bootup, grub and the initial loading before xserver starts, everything i have read that refers to this sort of thing mentions a file called grub.conf but it appears that file is not on my system, the closest thing i can find that might be it would be menu.lst and i have tried adding in the line splashimage=(hd0,0)/boot/grub/myfile.xpm.gz but that seemed to have no effect whats so ever, is there something i am doing wrong? i have grub installed on the mbr, please help with this problem of mine. to do splash screeen upon bootup, you will need: - a kernel that supports splash screen ( like the debian/suse kernels or make your own w/ the kernel options turned on ) - the bitmap files for the splash screen - make sure splash is enabled in its initrc scripts ( at least in some distro's ) - modify lilo.conf bitmap = /boot/sarge.bmp bmp-table=... bmp-colors=... bmp-timer=... - or modify /boot/grub/menu.lst title Both-This-Kernel kernel (hd...) ... vmlinuz-2.6.x.y-with-spash splash=silent will turn off splash - do NOT get menu.lst confused with /etc/grub.conf - some distro's like to mix and match all the options into one file ( a bad idea ) c ya alvin
Re: Call for Mentor
On Tue, 5 Jul 2005, Jules Dubois wrote: ... But I think I need a mentor to introduce me to how things work and what my first reading list or RTFM should be. good that you're willing to RTFM... - for specific issues, i bet yahoo/google will have some pointers and howto for reading .. i'd read HOWTOs before i read tooo much of the gory details that might past too high over my itty bitty head i'm more of a show me ... here's $100 bucks for an hour of your time for when i want to dig into the haystack and dont wannah putz around in it .. - there's probably local geeks in the city/town your in that has debian or *nix meetings and/or installfests - learning new things is always fun .. but .. its a time tradeoff too - eg. 5-minute problem should not turn into a 5-day reading list - if you're local in silly-con-valley, there's a new group starting up for doing code hacking and probably will do packaging issues too - part of svlug.org - one thing on my long todo list in between lots of higher priority stuff: - create my-custom-kernel.deb package but unfortunately for me, i'm avoiding the RTFM and will one day look for google: how to create *.deb howto :-) c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
