Re: Samba or NFS--tangent
On 06/04/2011 06:21 PM, Doug wrote: On 06/04/2011 02:53 AM, Ron Johnson wrote: On 06/04/2011 01:31 AM, Doug wrote: [snip] I opened the suggested url, and read the following intro: "*Reader Prerequisites*: To get the most from this article, understand the following concepts before reading: basic unix command line tools, text editors, DNS, TCP/IP, DHCP, netmask, gateway" I'm not afraid of command line tools and I can use nano or pico, or mc (yes, I've been around What do you current use to configure networking in Linux? (You must get to the Internet somehow...) I have a router with ethernet connections from each machine. (Or wireless, if the laptop is not wired in.) The router connects to a cable modem, and off we go. It is even possible to connect two machines to the internet at once--one playing streaming audio from a radio station in Texas, and one downloading or uploading email, or Googling. Nobody ever told me it was impossible, so I just do it. Or, since all the machines are multi-tasking, it's possible to Google while listening to music on the same machine. (I normally use the main Linux machine for email and net searching, and the Win 7 machine for music, since its sound card is output to a hi-fi system. If I want to do any serious writing, I use the Windows machine with WordPerfect on it. No M/S or M/S clone comes close.) So, as William says, you *do* have successfully implemented a LAN in your apartment. What you now need is "File And Print Sharing". Since the printer is plugged into the Win7 machine, Samba is your only choice. (I'd suggest that you give static IP addresses to your desktop machines and use the /etc/hosts file -- yes, even Windows has one -- to give your machines permanent symbolic names. Makes things easier that way.) -- "Neither the wisest constitution nor the wisest laws will secure the liberty and happiness of a people whose manners are universally corrupt." Samuel Adams, essay in The Public Advertiser, 1749 -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4deafe63.7070...@cox.net
Re: Boot fails during fschk of /dev/vg1/var
On Sat, Jun 4, 2011 at 6:01 PM, William Hopkins wrote:
> On 06/04/11 at 05:44pm, Marc Shapiro wrote:
>> I am running Lenny with LVM. Last night the system locked completely.
>> No mouse movement. No keystroke entry. Nothing. I don't like to
>> power down without a proper shutdown, but I did not seem to have a lot
>> of choice. This morning, when I tried to boot up I got an fschk on
>> several partitions. The first few were fine, until I got to
>> /dev/vg1/var. I got a dma expiry error. I tried several times to
>> power down and reboot, with the same result.
>>
>> Next, I booted into single user and tried to fsck /dev/vg1/var. When
>> I do that, I get the following messages:
>>
>> /dev/vg1/var has gone 186 days without being checked, check forced.
>> Pass 1: Checking inodes, blocks, and sizes
>> [ 191.648009] hda: ide_dma_sff_timer_expiry: DMA status (0x61)
>> [ 201.648005] hda DMA timeout error
>> [ 201.648057] hda: dma ti9meout error: status=0xd0 { Busy }
>> [ 201,648173] hda: possibly failed opcode: 0xc8
>> [ 201.648224] hda: DMA disabled
>> [ 201.512005] ide0: reset: success
>>
>> Then it just sits there indefinitely. Total lock up.
>
> Try booting with ide=nodma, see how far you get.
Same error. Same lockup.
Marc Shapiro
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Re: Samba or NFS--tangent
On 06/04/11 at 07:21pm, Doug wrote: > On 06/04/2011 02:53 AM, Ron Johnson wrote: > >On 06/04/2011 01:31 AM, Doug wrote: > >[snip] > >>I opened the suggested url, and read the following intro: "*Reader > >>Prerequisites*: To get the most from this > >>article, understand the following concepts before reading: basic unix > >>command line tools, text editors, > >>DNS, TCP/IP, DHCP, netmask, gateway" > >> > >>I'm not afraid of command line tools and I can use nano or pico, or mc > >>(yes, I've been around > > > >What do you current use to configure networking in Linux? (You > >must get to the Internet somehow...) > > > I have a router with ethernet connections from each machine. (Or > wireless, if the laptop is not wired in.) For future reference, this means you *do* have a network set up. Contrary to what you said before.. -- Liam signature.asc Description: Digital signature
Re: Boot fails during fschk of /dev/vg1/var
On 06/04/11 at 05:44pm, Marc Shapiro wrote:
> I am running Lenny with LVM. Last night the system locked completely.
> No mouse movement. No keystroke entry. Nothing. I don't like to
> power down without a proper shutdown, but I did not seem to have a lot
> of choice. This morning, when I tried to boot up I got an fschk on
> several partitions. The first few were fine, until I got to
> /dev/vg1/var. I got a dma expiry error. I tried several times to
> power down and reboot, with the same result.
>
> Next, I booted into single user and tried to fsck /dev/vg1/var. When
> I do that, I get the following messages:
>
> /dev/vg1/var has gone 186 days without being checked, check forced.
> Pass 1: Checking inodes, blocks, and sizes
> [ 191.648009] hda: ide_dma_sff_timer_expiry: DMA status (0x61)
> [ 201.648005] hda DMA timeout error
> [ 201.648057] hda: dma ti9meout error: status=0xd0 { Busy }
> [ 201,648173] hda: possibly failed opcode: 0xc8
> [ 201.648224] hda: DMA disabled
> [ 201.512005] ide0: reset: success
>
> Then it just sits there indefinitely. Total lock up.
Try booting with ide=nodma, see how far you get.
> I can reboot, go into single user mode, and mount the partition
> without any apparent errors. Only a warning that it has been too long
> since it was checked and I SHOULD run fsck. How do I fix this?
> Presumably, I could edit /etc/fstab to not mount /var automatically
> and mount it manually once the system has booted, but that does not
> correct the actual problem. Okay, that doesn't work. The root
> filesystem is read-only. Can I remount / as rw while the system is
> up?
Sure, should work. But with / being ro during boot a lot of services will
probably fail to start properly.
> Do I need to get a rescue cd and make the changes that way? I
> think that I have enough unused space in my pv to create a new
> partition for /var and copy everything from the old partition. Would
> this be the best option, or is there something else to do?
If you've actually got some trouble with your disk, more logical volumes on the
same disk won't be helpful.
In that instance you'll want a new disk with either no LVM or at least a
separate VG.
>If this is my best option, then I guess I need a rescue CD that understands LVM
> to boot into and work from. Is this correct?
That's one way to do it. Debian CDs have a rescue mode that supports LVM.
--
Liam
signature.asc
Description: Digital signature
Boot fails during fschk of /dev/vg1/var
I am running Lenny with LVM. Last night the system locked completely.
No mouse movement. No keystroke entry. Nothing. I don't like to
power down without a proper shutdown, but I did not seem to have a lot
of choice. This morning, when I tried to boot up I got an fschk on
several partitions. The first few were fine, until I got to
/dev/vg1/var. I got a dma expiry error. I tried several times to
power down and reboot, with the same result.
Next, I booted into single user and tried to fsck /dev/vg1/var. When
I do that, I get the following messages:
/dev/vg1/var has gone 186 days without being checked, check forced.
Pass 1: Checking inodes, blocks, and sizes
[ 191.648009] hda: ide_dma_sff_timer_expiry: DMA status (0x61)
[ 201.648005] hda DMA timeout error
[ 201.648057] hda: dma ti9meout error: status=0xd0 { Busy }
[ 201,648173] hda: possibly failed opcode: 0xc8
[ 201.648224] hda: DMA disabled
[ 201.512005] ide0: reset: success
Then it just sits there indefinitely. Total lock up.
I can reboot, go into single user mode, and mount the partition
without any apparent errors. Only a warning that it has been too long
since it was checked and I SHOULD run fsck. How do I fix this?
Presumably, I could edit /etc/fstab to not mount /var automatically
and mount it manually once the system has booted, but that does not
correct the actual problem. Okay, that doesn't work. The root
filesystem is read-only. Can I remount / as rw while the system is
up? Do I need to get a rescue cd and make the changes that way? I
think that I have enough unused space in my pv to create a new
partition for /var and copy everything from the old partition. Would
this be the best option, or is there something else to do? If this is
my best option, then I guess I need a rescue CD that understands LVM
to boot into and work from. Is this correct?
All help appreciated.
Marc Shapiro
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Re: New Squeeze install fails to boot (not even to grub)
On Sat, 2011-06-04 at 15:33 -0700, Johnathan Ritzi wrote: > [snip] Just to experiment, I went into fdisk, deleted all my new > partitions (leaving just the Windows ones) [snip] > I'm not even getting to the grub boot screen, so something is wrong > even before the point. Reinstalling grub to the Master Boot Record > (grub-install /dev/sda) isn't changing anything. How can I > troubleshoot this? At least now it isn't surprising that you don't see a boot menu. With deleting all Linux partitions, you also deleted /boot/grub/grub.cfg, the file that includes the boot menu. The menu isn't written to the MBR, just the boot loader is. -- Ralf -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/1307230611.2595.7.camel@debian
Re: New Squeeze install fails to boot (not even to grub)
Problem solved (I think). After digging some more, I realized that after the install the only partition marked bootable was /dev/sda6 (Linux root). I used fdisk to make /dev/sda2 also bootable (the main Windows partition) and grub (and everything else) came up fine. I believe the original set up was using Debian installer defaults. Is this something I should report against the installer somehow? On Sat, Jun 4, 2011 at 3:33 PM, Johnathan Ritzi wrote: > (posted this to a Linux forum, cross-posting here as recommended by the > install guide troubleshooting instructions) > > I recently purchased a new Lenovo Thinkpad T420i and am having problems > installing the latest version of Squeeze from CD. After receiving the > laptop, I started it up, configured Windows 7, and confirmed everything is > working correctly. Next I went through the Debian installer, which completed > successfully. I'll be dual-booting Windows 7 and Debian, so at the > partitioning stage I resized my NTFS partition, added a shared VFAT > partition, then used the "Guided" install to create my root and swap > partitions. My partition layout is: > > /dev/sda1 NTFS, primary (small, not sure what Windows uses this for) > /dev/sda2 NTFS, primary (the main Windows one I resized) > /dev/sda3 NTFS, primary (the Lenovo recovery partition at the end of the > drive) > /dev/sda4 extended > /dev/sda5 FAT32, logical (shared between Windows and Linux) > /dev/sda6 Linux, logical, bootable (Linux root) > /dev/sda7 Linux swap, logical > > During the boot loader phase, I chose the default (install grub to MBR). > After the installation completed successfully and I rebooted, I get: > > Intel Boot Agent > PXE-E61: media test failure > > which I see means the drive could not be booted. It then drops me back to a > Boot Menu where I can select which device to boot, and choosing my hard > drive goes to a black screen for a few seconds, then kicks me back to the > Boot Menu. > > I assumed something was wrong with grub, so I booted the CD into rescue > mode and chose to reinstall grub onto the Master Boot Record. But nothing > changed. Just to experiment, I went into fdisk, deleted all my new > partitions (leaving just the Windows ones), and tried rebooting, but the > same error happened. I then went through the Debian installer again, being > careful to set everything up correctly, but still, the device won't boot. > > I'm not even getting to the grub boot screen, so something is wrong even > before the point. Reinstalling grub to the Master Boot Record (grub-install > /dev/sda) isn't changing anything. How can I troubleshoot this? > > Thanks in advance.
Re: Gnome/KDE program launches hang when Internet disconnected - Lenny
On 2011-06-04, Jack Dodds wrote: > This is an OpenPGP/MIME signed message (RFC 2440 and 3156) > --enig8C3A295D8BAF91ED98A88B02 > Content-Type: text/plain; charset=ISO-8859-1 > Content-Transfer-Encoding: quoted-printable > > > Thanks to those who commented. > > I tried/etc/init.d/networking stop . When this is done, programs > launch without delay. Of course, this makes it impossible for any > program to access the Internet so it's not a solution! > > However, taking gedit as an example, > > Normal operation - Internet accessible - gedit launches in 2 seconds. > External problem - Internet inaccessible - gedit takes 60 seconds to laun= > ch. > Internal shutdown of networking - gedit launches in 2 seconds. > > Maybe this means something, but I am not sure what. (...) X applications need to resolve your system's hostname, and are (unnecessarily) going to the internet to do so. What are the contents of the files /etc/hosts and /etc/hostname? -- Liam O'Toole Cork, Ireland -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/slrniulg24.27s.liam.p.otoole@dipsy.tubbynet
Re: Samba or NFS--tangent
On 06/04/2011 02:53 AM, Ron Johnson wrote: On 06/04/2011 01:31 AM, Doug wrote: [snip] I opened the suggested url, and read the following intro: "*Reader Prerequisites*: To get the most from this article, understand the following concepts before reading: basic unix command line tools, text editors, DNS, TCP/IP, DHCP, netmask, gateway" I'm not afraid of command line tools and I can use nano or pico, or mc (yes, I've been around What do you current use to configure networking in Linux? (You must get to the Internet somehow...) I have a router with ethernet connections from each machine. (Or wireless, if the laptop is not wired in.) The router connects to a cable modem, and off we go. It is even possible to connect two machines to the internet at once--one playing streaming audio from a radio station in Texas, and one downloading or uploading email, or Googling. Nobody ever told me it was impossible, so I just do it. Or, since all the machines are multi-tasking, it's possible to Google while listening to music on the same machine. (I normally use the main Linux machine for email and net searching, and the Win 7 machine for music, since its sound card is output to a hi-fi system. If I want to do any serious writing, I use the Windows machine with WordPerfect on it. No M/S or M/S clone comes close.) --doug -- Blessed are the peacekeepers...for they shall be shot at from both sides. --A. M. Greeley -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4deabe08.2010...@optonline.net
New Squeeze install fails to boot (not even to grub)
(posted this to a Linux forum, cross-posting here as recommended by the install guide troubleshooting instructions) I recently purchased a new Lenovo Thinkpad T420i and am having problems installing the latest version of Squeeze from CD. After receiving the laptop, I started it up, configured Windows 7, and confirmed everything is working correctly. Next I went through the Debian installer, which completed successfully. I'll be dual-booting Windows 7 and Debian, so at the partitioning stage I resized my NTFS partition, added a shared VFAT partition, then used the "Guided" install to create my root and swap partitions. My partition layout is: /dev/sda1 NTFS, primary (small, not sure what Windows uses this for) /dev/sda2 NTFS, primary (the main Windows one I resized) /dev/sda3 NTFS, primary (the Lenovo recovery partition at the end of the drive) /dev/sda4 extended /dev/sda5 FAT32, logical (shared between Windows and Linux) /dev/sda6 Linux, logical, bootable (Linux root) /dev/sda7 Linux swap, logical During the boot loader phase, I chose the default (install grub to MBR). After the installation completed successfully and I rebooted, I get: Intel Boot Agent PXE-E61: media test failure which I see means the drive could not be booted. It then drops me back to a Boot Menu where I can select which device to boot, and choosing my hard drive goes to a black screen for a few seconds, then kicks me back to the Boot Menu. I assumed something was wrong with grub, so I booted the CD into rescue mode and chose to reinstall grub onto the Master Boot Record. But nothing changed. Just to experiment, I went into fdisk, deleted all my new partitions (leaving just the Windows ones), and tried rebooting, but the same error happened. I then went through the Debian installer again, being careful to set everything up correctly, but still, the device won't boot. I'm not even getting to the grub boot screen, so something is wrong even before the point. Reinstalling grub to the Master Boot Record (grub-install /dev/sda) isn't changing anything. How can I troubleshoot this? Thanks in advance.
Re: Samba or NFS
On Sat, 2011-06-04 at 15:27 -0400, Nico Kadel-Garcia wrote: > On Sat, Jun 4, 2011 at 1:33 PM, John A. Sullivan III > File ownership is a constant confusion between the two basic systems. > *DO NOT* try to manage the same file server and accessing its material > with the two different protocols. I've been this route, the claims of > "just set this" are generally complete handwaving, and cleaning up > when they break down can be a nightmare. I've been down this route > with Linux and UNIX and Windows file servers and NetApps, and I don't > recommend doing multiple access for *any* of them. > > And don't get me *started* on the iSCSI pain, sorrow, and blood in the > streets.. > > Boy have we really digressed on this thread! If anyone objects, please say so and I'll spawn another one. I'm glad you mentioned trying to run both protocols against the same file system. IF we go the NAS (presenting a remote file system as a remote file system - to define terms) rather than the SAN (presenting a remote file system as a block device) route, being able to access the same data on the NAS via both protocols would solve a big headache for us (Windows and Linux users both needing read/write access to the same data). Has anyone been able to successfully do this? Otherwise, we will probably use SAMBA rather than have to license NFS services on Windows (not sure if that's still a separate license). I'm also curious to see how others have dealt with iSCSI. That set back our entire company launch by five months as we fought ISCSI / Linux file system issues until we realized the problem was the 4KB block size limitation in Linux. Because each iSCSI block needs to be acknowledged, with only 4KB blocks, latency becomes the bottleneck rather than bandwidth, i.e., 4KB of data comes nowhere close to saturating the network. Thus, the maximum iSCSI throughput becomes 4KB/(round trip latency), e.g., 100 microsecond round trip latency limits throughput to 4KB/.0001 = 40MBps. To make matters worse for us, we are using Nexenta as a SAN. It's a brilliant idea of using ZFS for a back end but it runs on OpenSolaris and the network stack is much slower than Linux. We are eagerly waiting for BTRFS to mature as we suspect we will see a 30% to 80% increase in throughput by moving to Linux based SANs. In any event, has anyone found a way around this iSCSI 4KB problem for Linux file I/O? And to restate the earlier question, has anyone truly resolved the issues of running SAMBA and NFS against the same back end Linux file system? Thanks. Very helpful thread - John -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/1307220947.20855.29.ca...@denise.theartistscloset.com
Re: Avoid POP3
On 06/04/2011 02:52 PM, Nico Kadel-Garcia wrote: On Fri, Jun 3, 2011 at 8:26 AM, Ron Johnson wrote: On 06/03/2011 07:02 AM, Camaleón wrote: [snip] And admittely, in such programs (like Getmail or Fetchmail) it is very useful to have the "keep" option while configuring the application so you don't delete e-mails unless you are sure they're well routed locally and messages reach their inboxes. That's right. Nothing worse than seeing dozens of emails disappearing because of a misconfigured MTA. getmail is *not* an MTA. Be very cautious about that sort of claim, it can come back and bite you when you least expect it. Yeah, well, no. I stand by what I said. When fetchmail feeds a mis-configured MTA (like exim or postfix), emails just disappear. The default POP client behavior of auto-snatching mail off the server is an old, old, old problem, and one of the biggest reasons to throw POP access out altogether and switch to IMAP. Which is what I do: fetchmail grabs mail from my ISP's POP server, passes them to postfix which calls spam assassin then passes to maildrop which puts them in a Maildir for courier-imap -- "Neither the wisest constitution nor the wisest laws will secure the liberty and happiness of a people whose manners are universally corrupt." Samuel Adams, essay in The Public Advertiser, 1749 -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4dea974d.9020...@cox.net
Re: Avoid POP3
On Fri, Jun 3, 2011 at 8:26 AM, Ron Johnson wrote: > On 06/03/2011 07:02 AM, Camaleón wrote: > [snip] >> >> And admittely, in such programs (like Getmail or Fetchmail) it is very >> useful to have the "keep" option while configuring the application so you >> don't delete e-mails unless you are sure they're well routed locally and >> messages reach their inboxes. > > That's right. Nothing worse than seeing dozens of emails disappearing > because of a misconfigured MTA. getmail is *not* an MTA. Be very cautious about that sort of claim, it can come back and bite you when you least expect it. The default POP client behavior of auto-snatching mail off the server is an old, old, old problem, and one of the biggest reasons to throw POP access out altogether and switch to IMAP. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/banlktinxpd+rfvwy6zo2wyyqukoux3b...@mail.gmail.com
Re: Samba or NFS
On Sat, Jun 4, 2011 at 1:33 PM, John A. Sullivan III wrote: > On Fri, 2011-06-03 at 23:08 -0400, Nico Kadel-Garcia wrote: >> On Fri, Jun 3, 2011 at 11:08 AM, Dan wrote: >> > Hi, >> > >> > I have two linux servers. One file server (debian) that is running >> > samba and one application server (redhat). I would like to mount the >> > shares of the file server in the application server. The problem is >> > that the usernames are very different. Samba is already running and >> > easier to set-up. NFS seems to be more difficult to set-up and also >> > there are more security issues. >> > >> > Which are the advantages of NFS over Samba (cifs) other than the >> > symbolic links. I read that even some people prefer samba over NFS to >> > connect Unix to Unix. >> > >> > Thanks, >> > Dan >> >> CIFS clients mishandle mixed case filenames, such as 'file.txt", >> "FILE.txt", and "FILE.TXT". They also have a massively different idea >> of how file ownership and privileges work than the POSIX standards >> built into most UNIX and Linux native filesystems. And while I very >> much applaud the work of the Samba team for providing this >> cross-compatibility tool, it performs like a *dog* compared to NFS, >> AFS, ZFS, or the other more powerful network based fileysstems. >> >> NFS needs some attention to security: so does CIFS. But most of the >> complexities CIFS does more trivilally, such as mixed group ownership, >> can be resolved with tools built into NFS such as "netgroups" suport. >> And holy moley, but the speed of simple network operations like >> Subversion checkouts is *grotesquely* faster under NFS. >> >> > Interesting and helpful. I was always under the impression that NFS was > oodles faster than CIFS after one adjusted rsize and wsize to something > much larger than the defaults. However, one of our engineers recently > tweaked SAMBA to use similarly large block sizes and it seems to have > narrowed the gap. I did not take the time to actually measure so this > is only anecdotal. Has anyone had any similar or contrary experiences? > - John These are general Linux issues, not Debian specific. That said, It's very usage sensitive. Subversion checkouts on CIFS are ghods-awful slow compared to doing it on NFS. The latest release of subversion allegedly helps with the slow, but not *THAT* slow, performance on local NTFS checkouts, and may help with this issue. File ownership is a constant confusion between the two basic systems. *DO NOT* try to manage the same file server and accessing its material with the two different protocols. I've been this route, the claims of "just set this" are generally complete handwaving, and cleaning up when they break down can be a nightmare. I've been down this route with Linux and UNIX and Windows file servers and NetApps, and I don't recommend doing multiple access for *any* of them. And don't get me *started* on the iSCSI pain, sorrow, and blood in the streets.. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/BANLkTi=mSkYzhKHv=ggpbj-zoqorejt...@mail.gmail.com
Re: Samba or NFS
On Fri, 2011-06-03 at 23:08 -0400, Nico Kadel-Garcia wrote: > On Fri, Jun 3, 2011 at 11:08 AM, Dan wrote: > > Hi, > > > > I have two linux servers. One file server (debian) that is running > > samba and one application server (redhat). I would like to mount the > > shares of the file server in the application server. The problem is > > that the usernames are very different. Samba is already running and > > easier to set-up. NFS seems to be more difficult to set-up and also > > there are more security issues. > > > > Which are the advantages of NFS over Samba (cifs) other than the > > symbolic links. I read that even some people prefer samba over NFS to > > connect Unix to Unix. > > > > Thanks, > > Dan > > CIFS clients mishandle mixed case filenames, such as 'file.txt", > "FILE.txt", and "FILE.TXT". They also have a massively different idea > of how file ownership and privileges work than the POSIX standards > built into most UNIX and Linux native filesystems. And while I very > much applaud the work of the Samba team for providing this > cross-compatibility tool, it performs like a *dog* compared to NFS, > AFS, ZFS, or the other more powerful network based fileysstems. > > NFS needs some attention to security: so does CIFS. But most of the > complexities CIFS does more trivilally, such as mixed group ownership, > can be resolved with tools built into NFS such as "netgroups" suport. > And holy moley, but the speed of simple network operations like > Subversion checkouts is *grotesquely* faster under NFS. > > Interesting and helpful. I was always under the impression that NFS was oodles faster than CIFS after one adjusted rsize and wsize to something much larger than the defaults. However, one of our engineers recently tweaked SAMBA to use similarly large block sizes and it seems to have narrowed the gap. I did not take the time to actually measure so this is only anecdotal. Has anyone had any similar or contrary experiences? - John -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/1307208780.20855.8.ca...@denise.theartistscloset.com
Re: aptitude/apt-get hangs during update (plus) on IPv6
On Jun 3, 2011, at 10:46 AM, Jeffrey B. Green wrote: On Fri, 03 Jun 2011 09:42:49 +0200 Pascal Hambourg wrote: It could be an MTU/MSS issue. See the recent discussion in the debian-ipv6 list with subject "schein.debian.org" [2001:4f8:8:36::6]. Many thanks. Changing the MTU to 1480 as suggested worked. Indeed as was mentioned my connection to the IPv6 network is via a tunnel and I'm assuming as a poster commented that someone on the path is not handling the packaging correctly. -jeff The RFCs say that any conforming implementation MUST handle an MTU of 1280, and may not necessarily handle anything larger. So it makes sense (if you're going to go to the trouble of setting the MTU in the first place) to use that number. The difference in overhead between 1280 and 1400 is negligible. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/e8a5248c-e882-455b-935b-a863eb2d7...@pobox.com
Re: Gnome/KDE program launches hang when Internet disconnected - Lenny
On 06/04/2011 08:34 AM, Jack Dodds wrote: Thanks to those who commented. I tried/etc/init.d/networking stop . When this is done, programs launch without delay. Of course, this makes it impossible for any program to access the Internet so it's not a solution! However, taking gedit as an example, Normal operation - Internet accessible - gedit launches in 2 seconds. External problem - Internet inaccessible - gedit takes 60 seconds to launch. Internal shutdown of networking - gedit launches in 2 seconds. Maybe this means something, but I am not sure what. I also found NetworkManager and NetworkManagerDispatcher daemons running. I tried /etc/init.d/network-manager stop which eliminated one - I killed the other. This had no effect on the symptoms - gedit and other still take 60 seconds ot launch. I also found 8 instances of nfsd and one instance of nfsd4 running. Tried to kill -9 all of them. This had no effect. The correct way: /etc/init.d/nfs-kernel-server stop Any other suggestions? Run gedit from an xterm using strace. -- "Neither the wisest constitution nor the wisest laws will secure the liberty and happiness of a people whose manners are universally corrupt." Samuel Adams, essay in The Public Advertiser, 1749 -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4dea53e9.8070...@cox.net
Re: New Guy asks: I want to run Squeeze, except for a few particular things...
On Sat, 2011-06-04 at 10:39 +, darkestkhan wrote: > I would say go with Wheezy +1 I installed stable (squeeze) and than upgraded to testing (wheezy), I just kept X from stable. What for other distros is called 'stable' IMO isn't that stable as Debian testing. I should have installed testing directly, instead of stable. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/1307196478.3032.4.camel@debian
Re: Spin Off Question (was: What kernel for AMD Sempron system?)
Andrei POPESCU Said: [re-wrapped to 72 characters] - Sorry about that, I send list mails from my cell phone, very small screen, not much I can do about the text length. Otherwise thank you for the reply. Just curious, are the 32bit Libraries that can be installed upon need in a 64bit install the exact same libraries/packages as in 32bit only installs? If so are the 64bit lib's just named such to prevent conflicts, overwrites, and general confusion? Thanks; TeddyB -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/2020568637-1307195195-cardhu_decombobulator_blackberry.rim.net-840228970-@b16.c1.bise6.blackberry
Re: Gnome/KDE program launches hang when Internet disconnected - Lenny
Thanks to those who commented.
I tried/etc/init.d/networking stop . When this is done, programs
launch without delay. Of course, this makes it impossible for any
program to access the Internet so it's not a solution!
However, taking gedit as an example,
Normal operation - Internet accessible - gedit launches in 2 seconds.
External problem - Internet inaccessible - gedit takes 60 seconds to launch.
Internal shutdown of networking - gedit launches in 2 seconds.
Maybe this means something, but I am not sure what.
I also found NetworkManager and NetworkManagerDispatcher daemons running.
I tried /etc/init.d/network-manager stop which eliminated one - I
killed the other. This had no effect on the symptoms - gedit and other
still take 60 seconds ot launch.
I also found 8 instances of nfsd and one instance of nfsd4 running.
Tried to kill -9 all of them. This had no effect.
Any other suggestions?
Jack Dodds
William Hopkins wrote:
> On 06/03/11 at 10:17pm, Camaleón wrote:
>
>> El 2011-06-03 a las 12:53 -0400, Thomas Milne escribió:
>>
>> (resending to the list)
>>
>>
>>> On Fri, Jun 3, 2011 at 10:13 AM, Camaleón wrote:
>>>
>>>
On Fri, 03 Jun 2011 05:38:23 -0400, Jack Dodds wrote:
> I am running Lenny. The system is connected to the Internet via a
> Linksys BEFSR81router and a cable modem. My desktop is Gnome.
>
> If the Internet is inaccessible - e.g. if the Ethernet cable is
> disconnected from the computer, or the cable modem power is
> disconnected, or if there are problems on the provider network - many
> GUI programs take a long time (about 60 seconds) to launch.
>
(...)
I have not experienced that specific behaviour in any of my lenny
systems.
>> (...)
>>
>>
Run "top" to check for any runaway process.
>>> This sounds suspiciously like the effects of Gnome's notorious Network
>>> Manager. This tells Internet applications whether you are connected or not.
>>> That's where I would start looking, at least.
>>>
>> Yes, that would be a good test: shutdown the networking service
>> ("/etc/init.d/networking stop") and then check if there is still a
>> delay when opening gedit.
>>
>
> This would be the same as disconnecting the ethernet, wouldn't it?
> Network-manager is not called from this script.
>
>
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Re: google to pull support for firefox 3,5
On Thu, Jun 2, 2011 at 2:27 PM, William Hopkins wrote: > On 06/02/11 at 08:15pm, tadziu wrote: >> i'm just curious, is there any chance to bring iceweasel 4.0 to >> stable before google ends support for 3,5? i got 4.0 on my >> second computer with squeeze, but i had to mess a bit to get >> it working, and it's not performing as well as i've expected. >> >> >> http://techcrunch.com/2011/06/01/google-apps-to-pull-support-for-firefox-3-5-internet-explorer-7-and-safari-3/ > > How awful! Google has brought browsers to the PC hardware game: upgrade or > get left behind. > I only upgrade browsers for security reasons, as I use noscript and > requestpolicy and my browsing experience is essentially similar to my > browsing experience in 1999. I am willing to bet gmail et al will continue to > work for as long as you can use them without the fancy features (google does > try their hand at requiring javascript now and then, such as the recent > google images fiasco). > > OK rambling aside, you can use iceweasel 4.0 from experimental. Also given > that it exists there, I'm sure there are plans to bring it forward to > unstable and testing (and probably backports). It's freeware, with a metric caboose load of add-ons and streaming API's and security dongles and all sorts of bits. Doing backwards compatibility and multiple platrform spupport for any project, especially a bulky one, is painful and expensive in skilled engineering time and QA. I've *been* the author, or support engineer, for components that had major new releases and people weren't willing to upgrade their old components for simple supportability and maintainability. Backporting fixes may rely on completely re-engineering components, which means significantly forking old components. This happens with kernels, databases, and GUI's all the time. It's hardly unique to Firefox. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/banlktim-bomohxgpx1mpydc_whemjc7...@mail.gmail.com
Re: Samba or NFS--tangent
On Sat, Jun 4, 2011 at 12:58 AM, Doug wrote: > On 06/03/2011 11:28 PM, William Hopkins wrote: >> >> On 06/03/11 at 10:02pm, Ron Johnson wrote: >>> >>> On 06/03/2011 11:43 AM, John A. Sullivan III wrote: >>> [snip] NFS is by far simpler to use in pure Linux environment, Samba is for Windows networks. NFS has no passwords, just install it with apt-get, and declare /etc/exports in the server, and mount the shares in the clients /etc/fstab. That's all it takes. >>> Fine for home environments, but shouldn't an office environment use >>> LDAP for coordinated UID/GID sharing? >> > /snip/ > > Not to steal the thread, but those who read this probably are the best to > advise me. I know nothing about networking, but I would like to set up > a peer-to-peer network among a Windows 7 and two Linux machines, one of > which can also be booted to XP. (If one absolutely *must* be a "master" it > must > be the Windows 7 machine.) I assume I would use samba. I don't need any > security--all the machines are mine, here in the house with me, and I live > alone. > What I need is words of one syllable on how to do it. Is there a "Networks > For > Dummies" for me somewhere? > > Thanx--doug Most modern computers can, very reasonably, use dhcp to automatically be configured inside a local network and be able to reach the rest of the computers or the Intenet(tm). I'll assume you've already got your local wireless gateway or "cable router" or "dsl modem" or whatever doing that. First step, make sure you can see the Internet safely from inside your local network. That makes sure you're up and connected. I'm also assuming the IP addresses you're getting are "non-routable" addresses behind a NAT gateway: you can look them up with your network configuration tools. For someone like you unfamiliar with the internals on Linux, you might actually benefit from using the "NetworkManager" tools on your Linux boxes. Verify that the addresses are non-routable, for safety: they'll typically look something like "192.168.1.101". That "192.168" to start means "don't tell people on the Internet about this, hide behind a NAT gateway.) Second step. Tell your gateway to set up DHCP reservations: this stabilizes what IP address each machine gets, so you can hit the same address again and make things work. You can alternatively set up your network configuration smanually, but DHCP can be very handy. Third step. Pick one machine as a file server, say, one Linux box. That will tell you what file sharing protocols are available: Samba to share to Windows, and NFS to share with Linux and some Windows boxes, work reasonably well. Pick *ONE* file server, don't try to do this with all 3 machines or you'll enter a configuration rats nest. Mount your file shares from the server box. Use the now stable IP addresses: you can use host names if you set up a DNS server for yourself or a put host names in each machines /etc/hosts file, but for only 3 boxes, you don't need it. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/banlktim3h99dhas05fqu4g1shceco8f...@mail.gmail.com
Re: New Guy asks: I want to run Squeeze, except for a few particular things...
2011/6/2 Paul Johnson : > I was using RedHat/Fedora for along time, then Ubuntu, now Debian. > I'm not new in Linux, just Debian. And I'm still having trouble > understanding some of the terminology. > > I want to run the stable distribution--Squeeze--except I need newer > versions of some key programs I use in my work, like LyX and R. And > since the kernel included with Squeeze crashes when I unplug the USB > headset, I need to run a newer kernel that has a patch for that > problem. (I'm afraid of testing because it does not appear it ever > pauses for a "snapshot." If Debian testing had "freeze points" like > "Fedora 14" or "Ubuntu 11.04" or such, I would probably run testing. > But testing never pauses for a mostly working snapshot. Right?) > Debian Testing is working properly most of the time, though I can't guarantee that as I'm running Debian sid / experimental, which is also working most of the time (at least for me, though in sid / exp from time to time it is not working properly). I would say go with Wheezy (especially that you are not new to GNU/Linux) darkestkhan -- Feel free to CC me. jid: darkestk...@gmail.com May The Source be with You. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/banlktingkvcp1tfr7eujoroh0+wbp2v...@mail.gmail.com
Re: iceweasel & swiftfox not rendering pages
On 03/06/11 12:40, Camaleón wrote: On Fri, 03 Jun 2011 10:32:01 +0100, AG wrote: Has anyone else experienced problems with Iceweasel/ Swiftfox not rendering web pages properly? Any page I go to will be rendered with blue hypertext text only, no images, no lay out, etc., whilst other browsers (Iceape, Opera, Chromium) do the job just fine. Under what Debian version? It could be: a/ If you're running testing/sid, a bad update → wait& see :-) b/ Corrupted browser's user profile → try with a new empty one Anyway, and just in case, I would perform a full cache cleaning. Greetings, Hey there Camaleón Thanks - as always - for your helpful suggestion(s). You were quite right, something in my profile was borked, so after much faffing around I was able to rebuild a new profile while retaining book-marks, preferences & add-ons. How it got borked remains a mystery, but pragmatically it's fixed, and that is the important part. Thanks again. AG -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4dea01cf.4060...@gmail.com
[Way OT] Re: Security-Warning Mac
[replies only to -offtopic please, Reply-To: set accordingly] On Sb, 04 iun 11, 09:32:49, Klaus Wolf wrote: > Dear guys, > > The German Ministerium for Security Internet gives the following > warning: > > http://www.buerger-cert.de/techwarnung.aspx?msg_nr=Bcert-2011-0041 > > this warning is as very high declared, that's why inform on this > list. I know that it's allmost OT. "allmost" OT? The only relation I can see would be via Debian's kFreeBSD port, but even that is a bit far fetched :) Regards, Andrei -- Offtopic discussions among Debian users and developers: http://lists.alioth.debian.org/mailman/listinfo/d-community-offtopic signature.asc Description: Digital signature
Re: Spin Off Question (was: What kernel for AMD Sempron system?)
On Sb, 04 iun 11, 05:46:56, teddi...@tmo.blackberry.net wrote: > > Ron Johnson Said: > > The M2V has an AM2 socket, and all such chips are 64-bit capable, so > both 2.6.39-1-686-pae and 2.6.39-1-amd64 *should* work. > > (I think you'd get a different error if the kernel was incompatible with > the CPU.) > > [re-wrapped to 72 characters] > The first thing I noticed about these two Kernels was the one is an > amd64, the second is a i686-PAE which means it's a 32 bit with larger > than 4GB Memory Support. Yes > My spin off question is this, can a user install a 32bit system (i686) > and then choose to move to a 64bit system and perform a rolling update > as such? It can be, and has been done before, but... > I know that fundamentally, a 64 bit system consist of a 64bit Kernel > and the core libraries (libc, gcc, etc.) Are 64bit, I am to understand > that 32bit libs are present for backwards compatibility, but I'm not > sure if those libraries are different from the ones in a 32bit only > system. The Debian amd64 port is as "pure" as possible. 32bit libraries are only installed in very few cases and mostly for non-free software (skype is for me the big culprit here). However, there is work in progress on true multiarch[1] support, where it will be possible to mix packages as needed. It *might* be ready until wheezy is released. [1] AFAIU other distros have bi-arch support, where some combinations of ports are possible. Debian wants to go further :) > So my question boils down to if you can rolling update from 32bit to a > 64bit system? If so what all would be involved? And does it boil down > to being possible, but so intense as to negate the purpose, e.g. Just > plain easier/better to wipe and start fresh. Yes, at the moment it's so complicated to do a cross-grading that it's not worth it (I just wiped and reinstalled yesterday to move back from amd64 to i386). Regards, Andrei -- Offtopic discussions among Debian users and developers: http://lists.alioth.debian.org/mailman/listinfo/d-community-offtopic signature.asc Description: Digital signature
Re: Samba or NFS--tangent
On Sb, 04 iun 11, 02:31:28, Doug wrote: > > > I opened the suggested url, and read the following intro: "*Reader > Prerequisites*: To get the most from this > article, understand the following concepts before reading: basic > unix command line tools, text editors, > DNS, TCP/IP, DHCP, netmask, gateway" > > I'm not afraid of command line tools and I can use nano or pico, or > mc (yes, I've been around > since WordStar days)--vi is a problem--but some of the network terms > are not really clear > to me. The only one I'm sure of is netmask, but I'm not sure if > that is fixed to a machine or > that is the "dynamic" part of DHCP. Nor do I know where the "name" > in DNS comes from. > As you see, I wasn't kidding about knowing about networking. Hello Doug, I would suggest (in this order): 1. read on Wikipedia about all the terms above you don't understand - ask questions here for anything you don't understand (be specific and open a new thread for each question) 2. open a new thread with a good subject and describe exactly - what computers you have (with OS and computer names if possible) - what other hardware you have (printers and such) - what network devices you have (including exact model) - how are they all connected to each other - what you want to achieve Yes, it's not easy, but my impression is you don't want to be spoon-fed, but instead really understand what you would be doing :) Regards, Andrei P.S. Before you start, this is an excelent read http://www.catb.org/~esr/faqs/smart-questions.html -- Offtopic discussions among Debian users and developers: http://lists.alioth.debian.org/mailman/listinfo/d-community-offtopic signature.asc Description: Digital signature
Printing next few lines by awk following a pattern match.
> To: etothepowe...@hotmail.com > Subject: Re: Printing next few lines by awk following a pattern match. > From: debian-user-requ...@lists.debian.org > Date: Sat, 4 Jun 2011 08:37:23 + > > General info > > Subscription/unsubscription/info requests should always be sent to > the -request address of a mailing list. > > If a mailing list is called for example "thel...@lists.debian.org", then > the -request address can be inferred from this to be: > "thelist-requ...@lists.debian.org". > > To subscribe to a mailing list, simply send a message with the word > "subscribe" > in the Subject: field to the -request address of that list. > > To unsubscribe from a mailing list, simply send a message with the word (you > guessed it :-) "unsubscribe" in the Subject: field to the -request address of > that list. > > In the event of an address change, it would probably be the wisest to first > send an unsubscribe for the old address (this can be done from the new > address), and then a new subscribe to the new address (the order is > important). > > Most (un)subscription requests are processed automatically without human > intervention. > > Do not send multiple (un)subscription or info requests in one mail. > Only one will be processed per mail. > > NOTE: The -request server usually does quite a good job in discriminating > between (un)subscribe requests and messages intended for the maintainer. > If you'd like to make sure a human reads your message, make it look > like a reply (i.e. the first word in the Subject: field should be "Re:", > without the quotes of course); the -request server does not react to > replies. > > > The archive server > -- > Every submission sent to this list is archived.The size of the archive > depends on the limits set by the list maintainer (it is very well possible > that only, say, the last two mails sent to the list are still archived, the > rest might have expired). > > You can look at the header of every mail coming from this list to see > under what name it has been archived. The X-Mailing-List: field contains > the mailaddress of the list and the file in which this submission was > archived. > > If you want to access this archive, you have to send mails to the -request > address with the word "archive" as the first word of your Subject:. > To get you started try sending a mail to the -request address with > the following: > Subject: archive help > > > The listmaster > -- > To reach a human being answering your mail you may contact the address > listmas...@lists.debian.org. We will process your request as soon as > we can. > > Mail sent to this address is pre-parsed, a little mail robot will > automatically answer all mails sent with the following Subject lines: > > helpsends this help > > lists sends information on how to get a list of mailing lists
Re: Security-Warning Mac
On Jun 4, 2011 3:33 AM, "Klaus Wolf" wrote: > > Dear guys, > > The German Ministerium for Security Internet gives the following > warning: > > http://www.buerger-cert.de/techwarnung.aspx?msg_nr=Bcert-2011-0041 > > this warning is as very high declared, that's why inform on this > list. I know that it's allmost OT. > Sense this is an English list, I figured I'd let Google translate it for y'all. But its just a mac defender warning (I should hope everyone here is aware of this and Apple dropping the ball on this). http://translate.google.com/translate?sl=auto&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&u=http%3A%2F%2Fwww.buerger-cert.de%2Ftechwarnung.aspx%3Fmsg_nr%3DBcert-2011-0041
Security-Warning Mac
Dear guys, The German Ministerium for Security Internet gives the following warning: http://www.buerger-cert.de/techwarnung.aspx?msg_nr=Bcert-2011-0041 this warning is as very high declared, that's why inform on this list. I know that it's allmost OT. Nice day klaus -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/1307172769.7253.14.ca...@linuxwolf-mobil.fritz.box
Re: google to pull support for firefox 3,5
On Jun 4, 2011 2:08 AM, "jeremy jozwik" wrote: > > > Wow... I'm still with 3.0.6. > > my pc is still in 2.5 > Y'all realize this isn't really anything to brag about? I just hope both of you are running noscript or just turn scripting off (preferably the later with browsers that old). If you were on Windows, I'd be yelling about you probably having botnet software on your computer - luckily, you're on Linux so its unlikely anyone will have bot software for you.
