Re: [CentOS] fsck problems
2010/3/22 sync : > hi , guys: > > > when i reboot the server today ,the screen displays this ; > > --- > Setting hostname xxx [OK] > > Your system appears to have shut down uncleanly > Press Y within 1 seconds to force file system integrity check... > Checking root filesystem > > /dev/VolGroup00/LogVol 00: UNEXPECTED INCONSISTENCY: RUN fsck MANUALLY. > (i.e., without -a or -p options) > [FAILED] > > *** An error occured during the file system check. > *** Droping you to a shell; the system will reboot > *** when you leave the shell. > Give root password for maintenance > (or type Control-D to continue) > > > is it the disk error ? What should i do to repair the disk ? run fsck manually without a or p options? -- Eero ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] fsck problems
hi , guys: when i reboot the server today ,the screen displays this ; --- Setting hostname xxx [OK] Your system appears to have shut down uncleanly Press Y within 1 seconds to force file system integrity check... Checking root filesystem /dev/VolGroup00/LogVol 00: UNEXPECTED INCONSISTENCY: RUN fsck MANUALLY. (i.e., without -a or -p options) [FAILED] *** An error occured during the file system check. *** Droping you to a shell; the system will reboot *** when you leave the shell. Give root password for maintenance (or type Control-D to continue) is it the disk error ? What should i do to repair the disk ? Thanks in advance .. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] sendmail sending out on port 587
On Sun, 2010-03-21 at 22:55 -0500, Gregory P. Ennis wrote: > However, I did find an easy solution for evolution to use smtp on port > 587. I will record it here so that anyone looking for this in the > future will have the right methodology. > > All I had to do was to place the port number after the server name in > the "Sending E-Mail" tab of the "Preference -> Mail Account module in > the form of : > > mail.domain.net:587 --- For the record here is what I use in Pine for my .pinerc file. Located in /home/user_name/.pinerc... smtp-server=smtp.gmail.com:587/tls/user=your_addr...@gmail.com So how is there a problem with Pine? I see you got Evolution figured out. I would rather have a plain old email client like pine or evolution instead of a VPN. John ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] sendmail sending out on port 587
> The other common option is to use port 465 for smtp over ssl - which should be > something you can activate by uncommenting lines in your sendmail.mc and most > clients handle. Or use an outside account like gmail or yahoo that does this. Please do not promote port 465 when everything else other than Lookout or Lookout Express (RIP) can support 587 and STARTTLS ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] sendmail sending out on port 587
On Sun, 2010-03-21 at 15:55 -0500, Gregory P. Ennis wrote: > Dear List, > > I recently spent some time out of the USA, and found myself in a hotel > that blocked port 25 which prevented my laptop's ability to connect to > my office mail server. I did a scan on the internet and made the > observation that this was a common problem. I had port 22 available so > I was able to get my office server set up to accept mail on 25 and 587 > without difficulty. The command "telnet mail.server.com 587" to my > office mail server connects without difficulty. > > However, I have not been able to get sendmail on my laptop to connect to > sendmail on my mail server at home using port 587. > > I have added the following to sendmail.mc on my laptop without success : > > define(`RELAY_MAILER_ARGS', `TCP $h 587') > define(`ESMTP_MAILER_ARGS', `TCP $h 587') > > I finally made it back home, but have decided to change my configuration > to use 587 by default so that this problem will be avoided, but I have > been unable to get my laptop to connect. > > Anyone having ideas would be appreciated. > > Greg Ennis > Everyone, Thank you for your assistance; the best solution seemed to be the use of openvpn, or changing to thunderbird instead of evolution. I never found a method to make sendmail send mail out on 587. However, I did find an easy solution for evolution to use smtp on port 587. I will record it here so that anyone looking for this in the future will have the right methodology. All I had to do was to place the port number after the server name in the "Sending E-Mail" tab of the "Preference -> Mail Account module in the form of : mail.domain.net:587 It was easy to set sendmail up to use port 587 with the entries : DAEMON_OPTIONS(`Port=smtp, Name=MTA')dnl DAEMON_OPTIONS(`Port=submission, Name=MSA, M=Ea')dnl Please note both entries are required for sendmail to use port 25 and port 587. Thanks again for everyone's help!!! Greg ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] sendmail sending out on port 587
On 03/21/2010 07:25 PM, Les Mikesell wrote: > Gregory P. Ennis wrote: >> >> On Mon, 2010-03-22 at 09:21 +1100, Jobst Schmalenbach wrote: >>> Install dovecot on the server. >>> Use firewall rules to block out all networks for 993 BUT >>> the network of your laptop (whatever ISP your on). >>> Use thunderbird (or whatever) to read you email. >>> >>> I do that with all our mobiles/laptops. >>> >>> >>> Jobst >>> >>> >> Jobst, >> >> I had been doing what you suggested above. This resulted in being able >> to read all e-mail, but I could not send any e-mail in that port 25 was >> being blocked by the hotel. > > The other common option is to use port 465 for smtp over ssl - which should be > something you can activate by uncommenting lines in your sendmail.mc and most > clients handle. Or use an outside account like gmail or yahoo that does this. > You still need to configure client authentication, and on your own server, > relay > only if authenticated. Sendmail can't initiate an outgoing port 465 connection on its own. The only way sendmail can use a secure outgoing connection is by starting out unencrypted and using STARTTLS to switch to secure mode. Port 465 doesn't work that way. I've been through that, consulted with the Gods, etc., and the only way to make outgoing port 465 from sendmail work is to route the connection via 'stunnel'. Yes, that can be done, but it's a bit of a PITA, and I'm glad I don't have to do it any more. Port 587 + STARTTLS should be quite straightforward, though I've never had to play with the incoming side of that. -- Bob Nichols "NOSPAM" is really part of my email address. Do NOT delete it. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] sendmail sending out on port 587
Gregory P. Ennis wrote: > > On Mon, 2010-03-22 at 09:21 +1100, Jobst Schmalenbach wrote: >> Install dovecot on the server. >> Use firewall rules to block out all networks for 993 BUT >> the network of your laptop (whatever ISP your on). >> Use thunderbird (or whatever) to read you email. >> >> I do that with all our mobiles/laptops. >> >> >> Jobst >> >> > Jobst, > > I had been doing what you suggested above. This resulted in being able > to read all e-mail, but I could not send any e-mail in that port 25 was > being blocked by the hotel. The other common option is to use port 465 for smtp over ssl - which should be something you can activate by uncommenting lines in your sendmail.mc and most clients handle. Or use an outside account like gmail or yahoo that does this. You still need to configure client authentication, and on your own server, relay only if authenticated. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] sendmail sending out on port 587
On Mon, 2010-03-22 at 10:25 +1100, Kahlil Hodgson wrote: > On 22/03/10 10:01, Gregory P. Ennis wrote: > > I had been doing what you suggested above. This resulted in being able > > to read all e-mail, but I could not send any e-mail in that port 25 was > > being blocked by the hotel. > > I use thunderbird and have configured it to use multiple outgoing SMTP > servers for various circumstances. There is an option in the outgoing > SMTP server settings to specify the port that it uses. > > Another option which is simpler than sendmail (and even postfix) is to > use a simple SMTP relay like ssmtp (get off centos repos). This has a > very simple configuration file and even an example of what you want to > do. This way you dont have to change your favourite email client :-) > > Hope this helps! > > Kal > ___ Kai, You can read my mind about evolution, I am about ready to change :) I'll take a look at ssmtp to see if I can get it to work with evolution. Thanks for the suggestion Greg ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] sendmail sending out on port 587
On 22/03/10 10:01, Gregory P. Ennis wrote: > I had been doing what you suggested above. This resulted in being able > to read all e-mail, but I could not send any e-mail in that port 25 was > being blocked by the hotel. I use thunderbird and have configured it to use multiple outgoing SMTP servers for various circumstances. There is an option in the outgoing SMTP server settings to specify the port that it uses. Another option which is simpler than sendmail (and even postfix) is to use a simple SMTP relay like ssmtp (get off centos repos). This has a very simple configuration file and even an example of what you want to do. This way you dont have to change your favourite email client :-) Hope this helps! Kal -- Kahlil (Kal) Hodgson GPG: C37B01F4 Head of Technology (m) +61 (0) 4 2573 0382 DealMax Pty Ltd(w) +61 (0) 3 9008 5281 Suite 1005 401 Docklands Drive Docklands VIC 3008 Australia "All parts should go together without forcing. You must remember that the parts you are reassembling were disassembled by you. Therefore, if you can't get them together again, there must be a reason. By all means, do not use a hammer." -- IBM maintenance manual, 1925 <>___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Multiple FreeNX servers and SSH ports
On Sunday 21 March 2010 10:54, Niki Kovacs wrote: > Recently I played around with FreeNX on my own desktop, and I'd like to > install it on these two computers. On my PC, I just redirected port 22 > in the router, so SSH (and thus FreeNX) requests from the outside get > redirected to my desktop PC. (And yes, I have a strong password :oD) There was a lot of information given to you about this, but one piece I didn't see. If you are using SSH then why not switch from password authentication to Key authentication? Thus should someone figure out what port you are using, and today it isn't that hard with the many tools out there, they still will not be able to connect. -- Regards Robert Linux User #296285 http://counter.li.org ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] sendmail sending out on port 587
On Mon, 2010-03-22 at 09:21 +1100, Jobst Schmalenbach wrote: > Install dovecot on the server. > Use firewall rules to block out all networks for 993 BUT > the network of your laptop (whatever ISP your on). > Use thunderbird (or whatever) to read you email. > > I do that with all our mobiles/laptops. > > > Jobst > > Jobst, I had been doing what you suggested above. This resulted in being able to read all e-mail, but I could not send any e-mail in that port 25 was being blocked by the hotel. Greg ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] sendmail sending out on port 587
O n Sun, 2010-03-21 at 18:07 -0400, JohnS wrote: > > > > If you have other ideas would appreciate your assistance. > > > --- > I have an idea... Dump Sendmail on your laptop!!! > > Use Evolution or Pine to fetch and read your mail from your office > server. Seems a way lot simpler the sendmail.mc way. Configure them to > use the ports on your office server. How simple can it get? > > John > John, I actually evaluated your solution first in that your way was the normal way I sent mail. The problem I had was that port 25 was being blocked by the hotel and I could not figure out how to get evolution to use a port different than 25 to send mail. Receiving mail was no problem it was just sending mail. sendmail is supposed to be able to use port 587 to send mail so that is where I turned next, but have not made it work yet. Thanks for responding Greg ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] sendmail sending out on port 587
Install dovecot on the server. Use firewall rules to block out all networks for 993 BUT the network of your laptop (whatever ISP your on). Use thunderbird (or whatever) to read you email. I do that with all our mobiles/laptops. Jobst On Sun, Mar 21, 2010 at 03:55:47PM -0500, Gregory P. Ennis (po...@pomec.net) wrote: > Dear List, > > I recently spent some time out of the USA, and found myself in a hotel > that blocked port 25 which prevented my laptop's ability to connect to > my office mail server. I did a scan on the internet and made the > observation that this was a common problem. I had port 22 available so > I was able to get my office server set up to accept mail on 25 and 587 > without difficulty. The command "telnet mail.server.com 587" to my > office mail server connects without difficulty. > > However, I have not been able to get sendmail on my laptop to connect to > sendmail on my mail server at home using port 587. > > I have added the following to sendmail.mc on my laptop without success : > > define(`RELAY_MAILER_ARGS', `TCP $h 587') > define(`ESMTP_MAILER_ARGS', `TCP $h 587') > > I finally made it back home, but have decided to change my configuration > to use 587 by default so that this problem will be avoided, but I have > been unable to get my laptop to connect. > > Anyone having ideas would be appreciated. > > Greg Ennis > > > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos -- Bowman: Open the pod bay doors, HAL. | |0| | Jobst Schmalenbach, jo...@barrett.com.au, General Manager | | |0| Barrett Consulting Group P/L & The Meditation Room P/L |0|0|0| +61 3 9532 7677, POBox 277, Caulfield South, 3162, Australia ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] sendmail sending out on port 587
On Sun, 2010-03-21 at 16:47 -0500, Gregory P. Ennis wrote: > If you have other ideas would appreciate your assistance. > --- I have an idea... Dump Sendmail on your laptop!!! Use Evolution or Pine to fetch and read your mail from your office server. Seems a way lot simpler the sendmail.mc way. Configure them to use the ports on your office server. How simple can it get? John ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] sendmail sending out on port 587
On Sun, 2010-03-21 at 16:18 -0500, Les Mikesell wrote: > Gregory P. Ennis wrote: > > Dear List, > > > > I recently spent some time out of the USA, and found myself in a hotel > > that blocked port 25 which prevented my laptop's ability to connect to > > my office mail server. I did a scan on the internet and made the > > observation that this was a common problem. I had port 22 available so > > I was able to get my office server set up to accept mail on 25 and 587 > > without difficulty. The command "telnet mail.server.com 587" to my > > office mail server connects without difficulty. > > > > However, I have not been able to get sendmail on my laptop to connect to > > sendmail on my mail server at home using port 587. > > > > I have added the following to sendmail.mc on my laptop without success : > > > > define(`RELAY_MAILER_ARGS', `TCP $h 587') > > define(`ESMTP_MAILER_ARGS', `TCP $h 587') > > > > I finally made it back home, but have decided to change my configuration > > to use 587 by default so that this problem will be avoided, but I have > > been unable to get my laptop to connect. > > > > Anyone having ideas would be appreciated. > > Usually you would block 587 inbound on your own office firewall and use that > to > distinguish between locally-submitted mail and internet-received. You > definitely don't want to permit relaying from un-authenticated internet > sources. >If you need access to other office resources, one approach would be to set > up > openvpn on an office server and the laptop so you have an encrypted > connection > through the firewall. Another would be to set up sendmail to require > authentication on port 587 and also set up your laptop to send authentication. > Dear Les, I appreciate your advice about having un-authenticated relaying, and understand the importance of having this blocked. My sendmail office server will only allow relaying with authentication using : define(`confAUTH_OPTIONS', `A p y')dnl My problem is using port 587 on the laptop sendmail that is trying to send e-mail to my office sendmail server. I have been unable to get sendmail on the laptop to connect to the office server using port 587. Your idea of using openvpn is interesting. I have not experimented with this yet, but will download it and take a look. My presumption is that it needs to be on both the laptop as well as office server. If you have other ideas would appreciate your assistance. Thanks for your help!!! Greg ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for experiences with filesystem choices....
On Sun, 2010-03-21 at 16:20 -0500, Tom Bishop wrote: > So let me add some more detail, I have a hot swap disk cage that > currently has my backup data on it almost all of them are in VM's. > That disk is my primary data disk, all I need/want to do is to copy > that data periodically to another disk that I then can rotate offsite, > so I will have 2 more disks and will swap one in and out then during > the night either copy or rsync the data to the offsite disk, rinse, > wash and repeatI have plenty of cpu, 16cores and lots of memory > 32Gigso this disk will not be my primary backup disk but just my > offsite disaster recovery in case the other one ever bites the dust... Ok then you skimped on the 16 Cores. Copying that data is fine and dandy with me. But don't count all your eggs until there hatched. It's just you have to understand something here don't rely on copying any data from one single disk here now. At least have for the primary data to = 2 disks mirrored atleast. It's ludicrous to have a 16 core machine with one data disk. That's is just completly insane in the IT evironment I work in. It's unheard of. Check this out: Lets Think: That one single data disk dies or gets corrupted and you have your data Stored Offsite like you plan on doing? You dead in the water already. How long will it take to grab the Offsite data. Really think about it now. I am not being a "but" about it I'm just telling you what happens in real life and has happened. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for experiences with filesystem choices....
So let me add some more detail, I have a hot swap disk cage that currently has my backup data on it almost all of them are in VM's. That disk is my primary data disk, all I need/want to do is to copy that data periodically to another disk that I then can rotate offsite, so I will have 2 more disks and will swap one in and out then during the night either copy or rsync the data to the offsite disk, rinse, wash and repeatI have plenty of cpu, 16cores and lots of memory 32Gigso this disk will not be my primary backup disk but just my offsite disaster recovery in case the other one ever bites the dust... On Sun, Mar 21, 2010 at 3:18 PM, JohnS wrote: > > On Sun, 2010-03-21 at 14:35 -0500, Les Mikesell wrote: > > Ned Slider wrote: > > > Tom Bishop wrote: > > >> Lots of opinions out there and I have read and read, so I have a home > server > > >> that I have finally setup with a hot swap hdd cage and what I am > planning on > > >> doing is copying my data drive every other day and rotating them > offsite, > > >> haven't figured out how often though. So I did my first test last > night and > > >> the backup drive was formatted with ext3 but looking to try to speed > things > > >> up and was wondering what would be my best choice. > > Yea a lot of opinions and ideas out. > > Stop keeping your user generated data in VMs and instead use NFS or CIFS > for network storage. Or all together run the VMs from the network. > Then replicate your data. Rsynce can be cpu bound at times. > > BUT: Since you have one server get a good raid 1 sata card and use it > like arecca. You don't have to invest a fortune in it. Finally rsynce > is going to bite you in the a$$ copying live data. It may work perfect > for the first few times but in the end it will get you. You have to be > willing to sacrifice data speed for reliability. Data speed is crap > when it come to reliable data. Ask yourself if you want your precious > data from 5 years ago or that 1Gig line speed??? > > John > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] sendmail sending out on port 587
Gregory P. Ennis wrote: > Dear List, > > I recently spent some time out of the USA, and found myself in a hotel > that blocked port 25 which prevented my laptop's ability to connect to > my office mail server. I did a scan on the internet and made the > observation that this was a common problem. I had port 22 available so > I was able to get my office server set up to accept mail on 25 and 587 > without difficulty. The command "telnet mail.server.com 587" to my > office mail server connects without difficulty. > > However, I have not been able to get sendmail on my laptop to connect to > sendmail on my mail server at home using port 587. > > I have added the following to sendmail.mc on my laptop without success : > > define(`RELAY_MAILER_ARGS', `TCP $h 587') > define(`ESMTP_MAILER_ARGS', `TCP $h 587') > > I finally made it back home, but have decided to change my configuration > to use 587 by default so that this problem will be avoided, but I have > been unable to get my laptop to connect. > > Anyone having ideas would be appreciated. Usually you would block 587 inbound on your own office firewall and use that to distinguish between locally-submitted mail and internet-received. You definitely don't want to permit relaying from un-authenticated internet sources. If you need access to other office resources, one approach would be to set up openvpn on an office server and the laptop so you have an encrypted connection through the firewall. Another would be to set up sendmail to require authentication on port 587 and also set up your laptop to send authentication. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for experiences with filesystem choices....
JohnS wrote: > > > BUT: Since you have one server get a good raid 1 sata card and use it > like arecca. You don't have to invest a fortune in it. Finally rsynce > is going to bite you in the a$$ copying live data. It may work perfect > for the first few times but in the end it will get you. You have to be > willing to sacrifice data speed for reliability. Data speed is crap > when it come to reliable data. Ask yourself if you want your precious > data from 5 years ago or that 1Gig line speed??? Rsync is actually about as good as it gets at copying live data. It can't get a good copy of a file that changes while the copy is made, but neither can anything else and it's speed makes the odds better. One thing you can do with rsync is make a 2nd run with the -v option. This will only copy (and list) files that have changed since the 1st pass so you can see if anything important is open and active. If the 2nd run does not list any files - or if they are just things like growing logfiles, you should have a clean copy. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] sendmail sending out on port 587
Dear List, I recently spent some time out of the USA, and found myself in a hotel that blocked port 25 which prevented my laptop's ability to connect to my office mail server. I did a scan on the internet and made the observation that this was a common problem. I had port 22 available so I was able to get my office server set up to accept mail on 25 and 587 without difficulty. The command "telnet mail.server.com 587" to my office mail server connects without difficulty. However, I have not been able to get sendmail on my laptop to connect to sendmail on my mail server at home using port 587. I have added the following to sendmail.mc on my laptop without success : define(`RELAY_MAILER_ARGS', `TCP $h 587') define(`ESMTP_MAILER_ARGS', `TCP $h 587') I finally made it back home, but have decided to change my configuration to use 587 by default so that this problem will be avoided, but I have been unable to get my laptop to connect. Anyone having ideas would be appreciated. Greg Ennis ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for experiences with filesystem choices....
On Sun, 2010-03-21 at 14:35 -0500, Les Mikesell wrote: > Ned Slider wrote: > > Tom Bishop wrote: > >> Lots of opinions out there and I have read and read, so I have a home > >> server > >> that I have finally setup with a hot swap hdd cage and what I am planning > >> on > >> doing is copying my data drive every other day and rotating them offsite, > >> haven't figured out how often though. So I did my first test last night > >> and > >> the backup drive was formatted with ext3 but looking to try to speed things > >> up and was wondering what would be my best choice. Yea a lot of opinions and ideas out. Stop keeping your user generated data in VMs and instead use NFS or CIFS for network storage. Or all together run the VMs from the network. Then replicate your data. Rsynce can be cpu bound at times. BUT: Since you have one server get a good raid 1 sata card and use it like arecca. You don't have to invest a fortune in it. Finally rsynce is going to bite you in the a$$ copying live data. It may work perfect for the first few times but in the end it will get you. You have to be willing to sacrifice data speed for reliability. Data speed is crap when it come to reliable data. Ask yourself if you want your precious data from 5 years ago or that 1Gig line speed??? John ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for experiences with filesystem choices....
Ned Slider wrote: > Tom Bishop wrote: >> Lots of opinions out there and I have read and read, so I have a home server >> that I have finally setup with a hot swap hdd cage and what I am planning on >> doing is copying my data drive every other day and rotating them offsite, >> haven't figured out how often though. So I did my first test last night and >> the backup drive was formatted with ext3 but looking to try to speed things >> up and was wondering what would be my best choice. Most of my data is on >> VM's and the hdd files on some of them are quite large, I have used JFS and >> reiser in the past and was leaning on going with JFS but am tempted to look >> at XFS. So what I was wondering are what are folks experiences (instead of >> opinions) with different filesystems and while I want speed it needs to be >> reliable since it will be my back up datarunning centos 5.4 x64 >> >> >> Thanks in advance... >> > > Not the question you asked, but I'm guessing the choice of backup method > for "copying" the data will have far more effect than the choice of > filesystem. How are you backing up the data? Presumably something like > rsync will speed up matters considerably over a straight copy once the > first pass is done. Yes, I'd go for 'well-tested' and 'reliable' over speed on a backup drive. Some filesystems are faster at creating/deleting large numbers of files but if you use rysnc you'll only track the changes after the first run. Note that rsync keeps the whole directory tree in memory during the copy (and probably 2 copies for same-machine runs) so if you have a large number of files it will help to have plenty of RAM. This is supposed to be improved in the 3.x versions of rsync (available from rpmforge). -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] release
Hi, On Sun, 2010-03-21 at 19:30 +0100, mattias wrote: > [r...@vps ~]# rpm -qi centos-release > > Name: centos-release Relocations: (not relocatable) > > Version : 5 Vendor: CentOS > > Release : 4.el5.centos.1Build Date: tor 1 okt 2009 > 14.28.40 > Install Date: sön 21 mar 2010 14.20.07Build Host: > builder16.centos.org > Group : System Environment/Base Source RPM: > centos-release-5-4.el5.c > entos.1.src.rpm > > Size: 35485License: GPL > > Signature : DSA/SHA1, tor 1 okt 2009 14.41.26, Key ID a8a447dce8562897 > > Summary : CentOS release file > > Description : > > CentOS release files > > [r...@vps ~]# So it's Centos 5.4, a cat /etc/redhat-release should confirm it ;) Regards, Michel ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] release
[r...@vps ~]# rpm -qi centos-release Name: centos-release Relocations: (not relocatable) Version : 5 Vendor: CentOS Release : 4.el5.centos.1Build Date: tor 1 okt 2009 14.28.40 Install Date: sön 21 mar 2010 14.20.07Build Host: builder16.centos.org Group : System Environment/Base Source RPM: centos-release-5-4.el5.c entos.1.src.rpm Size: 35485License: GPL Signature : DSA/SHA1, tor 1 okt 2009 14.41.26, Key ID a8a447dce8562897 Summary : CentOS release file Description : CentOS release files [r...@vps ~]# -Ursprungligt meddelande- Från: centos-boun...@centos.org [mailto:centos-boun...@centos.org] För Robert Heller Skickat: den 21 mars 2010 15:41 Till: CentOS mailing list Kopia: cen...@lists.centos.org Ämne: Re: [CentOS] release At Sun, 21 Mar 2010 14:31:29 +0100 CentOS mailing list wrote: > > I upgraded my centos from 5.0 to 5.4 > But i still see 5.0 n the version number Did you hand modify /etc/issue and/or /etc/issue.net? Are there files named /etc/issue.rpmnew and/or /etc/issue.net.rpmnew? If so, then you need to either rename /etc/issue*.rpmnew to /etc/issue* OR re-edit /etc/issue* to match /etc/issue*.rpmnew. Also what does 'rpm -qi centos-release' display? > > ___ > CentOS mailing list > CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos > > -- Robert Heller -- 978-544-6933 Deepwoods Software-- Download the Model Railroad System http://www.deepsoft.com/ -- Binaries for Linux and MS-Windows hel...@deepsoft.com -- http://www.deepsoft.com/ModelRailroadSystem/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] release
The /etc/issue Looks fine But way i not sure are I think the openvpn are not in the centos 5.4 repo I no openvpn are in centos 5.0 but no in 5.4 Sorry my english -Ursprungligt meddelande- Från: centos-boun...@centos.org [mailto:centos-boun...@centos.org] För Robert Heller Skickat: den 21 mars 2010 15:41 Till: CentOS mailing list Kopia: cen...@lists.centos.org Ämne: Re: [CentOS] release At Sun, 21 Mar 2010 14:31:29 +0100 CentOS mailing list wrote: > > I upgraded my centos from 5.0 to 5.4 > But i still see 5.0 n the version number Did you hand modify /etc/issue and/or /etc/issue.net? Are there files named /etc/issue.rpmnew and/or /etc/issue.net.rpmnew? If so, then you need to either rename /etc/issue*.rpmnew to /etc/issue* OR re-edit /etc/issue* to match /etc/issue*.rpmnew. Also what does 'rpm -qi centos-release' display? > > ___ > CentOS mailing list > CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos > > -- Robert Heller -- 978-544-6933 Deepwoods Software-- Download the Model Railroad System http://www.deepsoft.com/ -- Binaries for Linux and MS-Windows hel...@deepsoft.com -- http://www.deepsoft.com/ModelRailroadSystem/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] release
On 3/21/2010 9:31 AM, mattias wrote: > I upgraded my centos from 5.0 to 5.4 > But i still see 5.0 n the version number > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > did you reboot? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Multiple FreeNX servers and SSH ports
Les Mikesell a écrit : > > Yes, just pick different port numbers for the router to redirect to port 22 > at > each internal IP. Then everything works normally internally and externally > you > use 'ssh -p nnn public_address' where your port number will be the one > redirected to the internal machine you want (and the NX client also has a > place > in the config screen to set the port number). > OK, now I got it, and even managed to make it work in practice. Generally speaking, I understand things very fast when they're explained very slowly :o) Thanks, Niki ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Multiple FreeNX servers and SSH ports
Ned Slider wrote: > >>> 2) How do I configure these different ports ? By that, I mean : how do I >>> tell SSH to use them instead of port 22 ? >> You don't really need to change the ports on the hosts. Just configure the >> router to accept different ports on the internet side and redirect to port >> 22 at >> the different IP addresses on the inside. Then you only have to change the >> client settings for access from outside. I'd move both of them away from >> port >> 22 on the outside, though - you'll avoid a lot of password guessing attempts >> that will happen otherwise. >> > > Not all home/consumer routers will allow redirection to another port - > some only allow packet forwarding to the *same* port at another IP address. I guess that's possible - but they are cheap enough to replace if they don't provide the functionality you want. I think I've seen some where they had a simple setup to forward a port for a service to the same port at one inside IP or you could do a custom setup where you could specific the target port as well. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Multiple FreeNX servers and SSH ports
Niki Kovacs wrote: > Les Mikesell a écrit : >> You don't really need to change the ports on the hosts. Just configure the >> router to accept different ports on the internet side and redirect to port >> 22 at >> the different IP addresses on the inside. Then you only have to change the >> client settings for access from outside. I'd move both of them away from >> port >> 22 on the outside, though - you'll avoid a lot of password guessing attempts >> that will happen otherwise. >> > > Sorry, but I don't quite follow you. (One of these cases where I feel my > IQ is just a bit insufficient :oD) > > How can I possibly access two distinct machines behind one single IP > address when they run SSH on the same port ? The router configuration for port forwarding should let you specify the port to accept on (where each does have to be different because of the single IP) and then the IP and port for redirection. Since the inside targets have different IPs, it doesn't matter that they have the same port. At least most routers work this way - you can redirect to a different port on the inside but they may have a different config section for 'custom' forwarding and a simplified one that just sends a service port to the same port on one inside target. > Or, I'll reformulate my question more simply. > > I have a router with *one* public IP address (213.41.141.252). And > behind that router, on the local network, I have two different machines: > 192.168.1.2 and 192.168.1.3. > > Is there a (normal, orthodox) way to SSH into these machines directly > from the outside? That is, without logging into the main box and then > hopping around internally? Something where in one case, ssh > 213.41.141.252 -option gets me into machine A, and then ssh > 213.141.141.252 -otheroption gets me into machine B. Yes, just pick different port numbers for the router to redirect to port 22 at each internal IP. Then everything works normally internally and externally you use 'ssh -p nnn public_address' where your port number will be the one redirected to the internal machine you want (and the NX client also has a place in the config screen to set the port number). Another option if most of your outside access is from a single location or from a laptop would be to set up openvpn to one of the inside machines, configuring the router to pass a single udp port for it. Then you can treat it like a routed subnet with normal access to all services. But, if you use freenx it doesn't make much difference because the session runs over ssh and the desktop will have 'inside' access anyway. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Multiple FreeNX servers and SSH ports
Hi Nikki, Niki Kovacs sent a missive on 2010-03-21: > Les Mikesell a écrit : >> >> You don't really need to change the ports on the hosts. Just configure >> the router to accept different ports on the internet side and redirect >> to port 22 at the different IP addresses on the inside. Then you only >> have to change the client settings for access from outside. I'd move >> both of them away from port 22 on the outside, though - you'll avoid a >> lot of password guessing attempts that will happen otherwise. >> > > Sorry, but I don't quite follow you. (One of these cases where I feel > my IQ is just a bit insufficient :oD) > > How can I possibly access two distinct machines behind one single IP > address when they run SSH on the same port ? You have to use a combination of NAT and PAT (NAT is Network address translation and PAT is Port address translation) on the router. > > Or, I'll reformulate my question more simply. > > I have a router with *one* public IP address (213.41.141.252). And > behind that router, on the local network, I have two different machines: > 192.168.1.2 and 192.168.1.3. > > Is there a (normal, orthodox) way to SSH into these machines directly > from the outside? That is, without logging into the main box and then > hopping around internally? Something where in one case, ssh > 213.41.141.252 -option gets me into machine A, and then ssh > 213.141.141.252 -otheroption gets me into machine B. > > I'm confused. Depending on your router you will be able to configure it to do what you want. On your router you "should" be able to do the following: Redirect connections to 213.141.141.252 port to 192.168.1.2 port 22 AND Redirect connections to 213.141.141.252 port 2223 to 192.168.1.3 port 22 You then can connect using your favourite ssh client (mine is absolute telnet :-) ) by connecting to 213.141.141.252 port you'll be connected to 192.168.1.2 via ssh. Simples! Hope this helps Simon. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Multiple FreeNX servers and SSH ports
Stephen Harris a écrit : > >>From "man ssh_config" look into CheckHostIP > > For example: > > Host bernadette > HostName my.ip.add.ress > Port 10022 > HostKeyAlias bernadette > CheckHostIP no > > Host raymonde > HostName my.ip.add.ress > Port 10023 > HostKeyAlias raymonde > CheckHostIP no > > Now you should be able to do "ssh bernadette" and "ssh raymonde". > Thanks very much! That solved my problem. Cheers, Niki ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Multiple FreeNX servers and SSH ports
On Sun, 2010-03-21 at 17:29 +0100, Niki Kovacs wrote: > Les Mikesell a écrit : > > > > You don't really need to change the ports on the hosts. Just configure the > > router to accept different ports on the internet side and redirect to port > > 22 at > > the different IP addresses on the inside. Then you only have to change the > > client settings for access from outside. I'd move both of them away from > > port > > 22 on the outside, though - you'll avoid a lot of password guessing > > attempts > > that will happen otherwise. > > > > Sorry, but I don't quite follow you. (One of these cases where I feel my > IQ is just a bit insufficient :oD) You can access multiple machines behind one single IP by machine name or DNS host1.net.com:22 host2.net.com 2203 . > How can I possibly access two distinct machines behind one single IP > address when they run SSH on the same port ? > > Or, I'll reformulate my question more simply. > > I have a router with *one* public IP address (213.41.141.252). And > behind that router, on the local network, I have two different machines: > 192.168.1.2 and 192.168.1.3. > > > I'm confused. Yes you are. John ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Multiple FreeNX servers and SSH ports
Les Mikesell a écrit : > > You don't really need to change the ports on the hosts. Just configure the > router to accept different ports on the internet side and redirect to port 22 > at > the different IP addresses on the inside. Then you only have to change the > client settings for access from outside. I'd move both of them away from > port > 22 on the outside, though - you'll avoid a lot of password guessing attempts > that will happen otherwise. > Sorry, but I don't quite follow you. (One of these cases where I feel my IQ is just a bit insufficient :oD) How can I possibly access two distinct machines behind one single IP address when they run SSH on the same port ? Or, I'll reformulate my question more simply. I have a router with *one* public IP address (213.41.141.252). And behind that router, on the local network, I have two different machines: 192.168.1.2 and 192.168.1.3. Is there a (normal, orthodox) way to SSH into these machines directly from the outside? That is, without logging into the main box and then hopping around internally? Something where in one case, ssh 213.41.141.252 -option gets me into machine A, and then ssh 213.141.141.252 -otheroption gets me into machine B. I'm confused. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for experiences with filesystem choices....
Tom Bishop wrote: > Lots of opinions out there and I have read and read, so I have a home server > that I have finally setup with a hot swap hdd cage and what I am planning on > doing is copying my data drive every other day and rotating them offsite, > haven't figured out how often though. So I did my first test last night and > the backup drive was formatted with ext3 but looking to try to speed things > up and was wondering what would be my best choice. Most of my data is on > VM's and the hdd files on some of them are quite large, I have used JFS and > reiser in the past and was leaning on going with JFS but am tempted to look > at XFS. So what I was wondering are what are folks experiences (instead of > opinions) with different filesystems and while I want speed it needs to be > reliable since it will be my back up datarunning centos 5.4 x64 > > > Thanks in advance... > Not the question you asked, but I'm guessing the choice of backup method for "copying" the data will have far more effect than the choice of filesystem. How are you backing up the data? Presumably something like rsync will speed up matters considerably over a straight copy once the first pass is done. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Multiple FreeNX servers and SSH ports
On Sun, 2010-03-21 at 17:03 +0100, Niki Kovacs wrote: > Ned Slider a écrit : > > > Choose a random unused high port number (above 1023) > > > > http://www.iana.org/assignments/port-numbers. > > > >> 2) How do I configure these different ports ? By that, I mean : how do I > >> tell SSH to use them instead of port 22 ? > >> > > > > http://wiki.centos.org/HowTos/Network/SecuringSSH#head-3579222198adaf43a3ecbdc438ebce74da40d8ec > > Thanks, that helped. I sort of managed to configure different SSH ports > for the two machines. Now I'm facing another quite unexpected problem. > Let me try to describe what's going on. > > Machine number 1 (bernadette) is 192.168.1.2. I reconfigured SSH on this > machine to use port 10022. > > Machine number 2 (raymonde) is 192.168.1.3. SSH port on raymonde is 10023. > > I took care of reconfiguring the firewall and open the respective ports > (10022:tcp on bernadette, 10023:tcp on raymonde). > > In my router's web interface (Expert Mode > NAT) I defined a port > redirection, so that requests for port 10022 are rerouted to > 192.168.1.2, and requests for port 10023 to 192.168.1.3. > > Now I can ssh into my two machines from the outside, using my public IP > address. E. g. : > > # ssh my.ip.add.res -p 10022 --> I'm logged into bernadette > > # ssh my.ip.add.res -p 10023 --> Logs me into raymonde > > Except... when logging in a second time, in the other machine, I get > this, understandably : > > @@@ > @WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ > @@@ > IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! > Someone could be eavesdropping on you right now (man-in-the-middle attack)! > It is also possible that the RSA host key has just been changed. > > > Now, of course, I could manually open ~/.ssh/known_hosts, erase the > respective line and then log back again. But is there a more orthodox > way to log into two different machines via two distinct ports on one > single IP address without getting this sort of error ? I have resorted to using DNS to do this... ssh -p SOME_PORT_NUMBER hostname1.example.com ssh -p SOME_OTHER_PORT hostname2.example.com and hostname1.example.com and hostname2.example.com actually point to the same IP address (maybe one is an A record and the other a CNAME). Craig -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Multiple FreeNX servers and SSH ports
Les Mikesell wrote: > Niki Kovacs wrote: >> Hi, >> >> I've setup a small LAN of two desktops running CentOS 5 in a medical >> office. Both are connected to the Internet via a small modem/router. >> >> Recently I played around with FreeNX on my own desktop, and I'd like to >> install it on these two computers. On my PC, I just redirected port 22 >> in the router, so SSH (and thus FreeNX) requests from the outside get >> redirected to my desktop PC. (And yes, I have a strong password :oD) >> >> I'd like to handle the two PCs from the medical office remotely with >> FreeNX. I figured that the best way to distinguish them would be to >> assign a different port for SSH to each of them, and then redirect each >> of the ports respectively. >> >> 1) How do I choose different port numbers for SSH ? Any conventions or >> caveats for this ? >> >> 2) How do I configure these different ports ? By that, I mean : how do I >> tell SSH to use them instead of port 22 ? > > You don't really need to change the ports on the hosts. Just configure the > router to accept different ports on the internet side and redirect to port 22 > at > the different IP addresses on the inside. Then you only have to change the > client settings for access from outside. I'd move both of them away from > port > 22 on the outside, though - you'll avoid a lot of password guessing attempts > that will happen otherwise. > Not all home/consumer routers will allow redirection to another port - some only allow packet forwarding to the *same* port at another IP address. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Multiple FreeNX servers and SSH ports
On Sun, Mar 21, 2010 at 05:03:12PM +0100, Niki Kovacs wrote: > Now I can ssh into my two machines from the outside, using my public IP > address. E. g. : > > # ssh my.ip.add.res -p 10022 --> I'm logged into bernadette > > # ssh my.ip.add.res -p 10023 --> Logs me into raymonde [ Key changed... ] > Now, of course, I could manually open ~/.ssh/known_hosts, erase the > respective line and then log back again. But is there a more orthodox > way to log into two different machines via two distinct ports on one > single IP address without getting this sort of error ? >From "man ssh_config" look into CheckHostIP For example: Host bernadette HostName my.ip.add.ress Port 10022 HostKeyAlias bernadette CheckHostIP no Host raymonde HostName my.ip.add.ress Port 10023 HostKeyAlias raymonde CheckHostIP no Now you should be able to do "ssh bernadette" and "ssh raymonde". Personnally, I use something like dnsalias.org to register my hostname so if the IP address changes I don't need to change config files (set HostName foobar.dnsalias.org - where foobar is the name you registered) -- rgds Stephen ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Multiple FreeNX servers and SSH ports
Niki Kovacs wrote: > Hi, > > I've setup a small LAN of two desktops running CentOS 5 in a medical > office. Both are connected to the Internet via a small modem/router. > > Recently I played around with FreeNX on my own desktop, and I'd like to > install it on these two computers. On my PC, I just redirected port 22 > in the router, so SSH (and thus FreeNX) requests from the outside get > redirected to my desktop PC. (And yes, I have a strong password :oD) > > I'd like to handle the two PCs from the medical office remotely with > FreeNX. I figured that the best way to distinguish them would be to > assign a different port for SSH to each of them, and then redirect each > of the ports respectively. > > 1) How do I choose different port numbers for SSH ? Any conventions or > caveats for this ? > > 2) How do I configure these different ports ? By that, I mean : how do I > tell SSH to use them instead of port 22 ? You don't really need to change the ports on the hosts. Just configure the router to accept different ports on the internet side and redirect to port 22 at the different IP addresses on the inside. Then you only have to change the client settings for access from outside. I'd move both of them away from port 22 on the outside, though - you'll avoid a lot of password guessing attempts that will happen otherwise. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Multiple FreeNX servers and SSH ports
Ned Slider a écrit : > Choose a random unused high port number (above 1023) > > http://www.iana.org/assignments/port-numbers. > >> 2) How do I configure these different ports ? By that, I mean : how do I >> tell SSH to use them instead of port 22 ? >> > > http://wiki.centos.org/HowTos/Network/SecuringSSH#head-3579222198adaf43a3ecbdc438ebce74da40d8ec Thanks, that helped. I sort of managed to configure different SSH ports for the two machines. Now I'm facing another quite unexpected problem. Let me try to describe what's going on. Machine number 1 (bernadette) is 192.168.1.2. I reconfigured SSH on this machine to use port 10022. Machine number 2 (raymonde) is 192.168.1.3. SSH port on raymonde is 10023. I took care of reconfiguring the firewall and open the respective ports (10022:tcp on bernadette, 10023:tcp on raymonde). In my router's web interface (Expert Mode > NAT) I defined a port redirection, so that requests for port 10022 are rerouted to 192.168.1.2, and requests for port 10023 to 192.168.1.3. Now I can ssh into my two machines from the outside, using my public IP address. E. g. : # ssh my.ip.add.res -p 10022 --> I'm logged into bernadette # ssh my.ip.add.res -p 10023 --> Logs me into raymonde Except... when logging in a second time, in the other machine, I get this, understandably : @@@ @WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ @@@ IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! Someone could be eavesdropping on you right now (man-in-the-middle attack)! It is also possible that the RSA host key has just been changed. Now, of course, I could manually open ~/.ssh/known_hosts, erase the respective line and then log back again. But is there a more orthodox way to log into two different machines via two distinct ports on one single IP address without getting this sort of error ? Cheers, Niki ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for experiences with filesystem choices....
Thanks Timo I'll go read that... On 3/21/10, Timo Schoeler wrote: > On 03/21/2010 04:01 PM, Tom Bishop wrote: >> Lots of opinions out there and I have read and read, so I have a home >> server that I have finally setup with a hot swap hdd cage and what I am >> planning on doing is copying my data drive every other day and rotating >> them offsite, haven't figured out how often though. So I did my first >> test last night and the backup drive was formatted with ext3 but looking >> to try to speed things up and was wondering what would be my best >> choice. Most of my data is on VM's and the hdd files on some of them >> are quite large, I have used JFS and reiser in the past and was leaning >> on going with JFS but am tempted to look at XFS. So what I was >> wondering are what are folks experiences (instead of opinions) with >> different filesystems and while I want speed it needs to be reliable >> since it will be my back up datarunning centos 5.4 x64 >> >> >> Thanks in advance... > > Hi, > > in December last year there was a nice thread about choosing the 'right' > FS for certain circumstances, which included JFS, XFS, ext3/4 etc. > > http://lists.centos.org/pipermail/centos/2009-December/086842.html > > HTH, > > Timo > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Looking for experiences with filesystem choices....
On 03/21/2010 04:01 PM, Tom Bishop wrote: > Lots of opinions out there and I have read and read, so I have a home > server that I have finally setup with a hot swap hdd cage and what I am > planning on doing is copying my data drive every other day and rotating > them offsite, haven't figured out how often though. So I did my first > test last night and the backup drive was formatted with ext3 but looking > to try to speed things up and was wondering what would be my best > choice. Most of my data is on VM's and the hdd files on some of them > are quite large, I have used JFS and reiser in the past and was leaning > on going with JFS but am tempted to look at XFS. So what I was > wondering are what are folks experiences (instead of opinions) with > different filesystems and while I want speed it needs to be reliable > since it will be my back up datarunning centos 5.4 x64 > > > Thanks in advance... Hi, in December last year there was a nice thread about choosing the 'right' FS for certain circumstances, which included JFS, XFS, ext3/4 etc. http://lists.centos.org/pipermail/centos/2009-December/086842.html HTH, Timo ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Multiple FreeNX servers and SSH ports
Niki Kovacs wrote: > Hi, > > I've setup a small LAN of two desktops running CentOS 5 in a medical > office. Both are connected to the Internet via a small modem/router. > > Recently I played around with FreeNX on my own desktop, and I'd like to > install it on these two computers. On my PC, I just redirected port 22 > in the router, so SSH (and thus FreeNX) requests from the outside get > redirected to my desktop PC. (And yes, I have a strong password :oD) > > I'd like to handle the two PCs from the medical office remotely with > FreeNX. I figured that the best way to distinguish them would be to > assign a different port for SSH to each of them, and then redirect each > of the ports respectively. > > 1) How do I choose different port numbers for SSH ? Any conventions or > caveats for this ? > Choose a random unused high port number (above 1023) http://www.iana.org/assignments/port-numbers. > 2) How do I configure these different ports ? By that, I mean : how do I > tell SSH to use them instead of port 22 ? > http://wiki.centos.org/HowTos/Network/SecuringSSH#head-3579222198adaf43a3ecbdc438ebce74da40d8ec ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Looking for experiences with filesystem choices....
Lots of opinions out there and I have read and read, so I have a home server that I have finally setup with a hot swap hdd cage and what I am planning on doing is copying my data drive every other day and rotating them offsite, haven't figured out how often though. So I did my first test last night and the backup drive was formatted with ext3 but looking to try to speed things up and was wondering what would be my best choice. Most of my data is on VM's and the hdd files on some of them are quite large, I have used JFS and reiser in the past and was leaning on going with JFS but am tempted to look at XFS. So what I was wondering are what are folks experiences (instead of opinions) with different filesystems and while I want speed it needs to be reliable since it will be my back up datarunning centos 5.4 x64 Thanks in advance... ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] release
You may want to consider adding some details if you want an answer. Kai -- Get your web at Conactive Internet Services: http://www.conactive.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Multiple FreeNX servers and SSH ports
Hi, I've setup a small LAN of two desktops running CentOS 5 in a medical office. Both are connected to the Internet via a small modem/router. Recently I played around with FreeNX on my own desktop, and I'd like to install it on these two computers. On my PC, I just redirected port 22 in the router, so SSH (and thus FreeNX) requests from the outside get redirected to my desktop PC. (And yes, I have a strong password :oD) I'd like to handle the two PCs from the medical office remotely with FreeNX. I figured that the best way to distinguish them would be to assign a different port for SSH to each of them, and then redirect each of the ports respectively. 1) How do I choose different port numbers for SSH ? Any conventions or caveats for this ? 2) How do I configure these different ports ? By that, I mean : how do I tell SSH to use them instead of port 22 ? Cheers, Niki ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] release
At Sun, 21 Mar 2010 14:31:29 +0100 CentOS mailing list wrote: > > I upgraded my centos from 5.0 to 5.4 > But i still see 5.0 n the version number Did you hand modify /etc/issue and/or /etc/issue.net? Are there files named /etc/issue.rpmnew and/or /etc/issue.net.rpmnew? If so, then you need to either rename /etc/issue*.rpmnew to /etc/issue* OR re-edit /etc/issue* to match /etc/issue*.rpmnew. Also what does 'rpm -qi centos-release' display? > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > > > -- Robert Heller -- 978-544-6933 Deepwoods Software-- Download the Model Railroad System http://www.deepsoft.com/ -- Binaries for Linux and MS-Windows hel...@deepsoft.com -- http://www.deepsoft.com/ModelRailroadSystem/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] release
I upgraded my centos from 5.0 to 5.4 But i still see 5.0 n the version number ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] bruteforce protection howto
On Sat, Mar 20, 2010 at 05:24:34PM -0500, Larry Vaden wrote: > On Sat, Mar 20, 2010 at 5:17 PM, Vadkan Jozsef > wrote: > > > > What's the best method to ban that ip [what is bruteforcig a server] > > what was logged on the logger? > > I need to ban the ip on the router pc. > > http://www.fail2ban.org/wiki/index.php/Main_Page but you may have to > run fail2ban on the server instead of on the logger. You can forward a copy of the syslog messages to the router and instruct fail2ban to act upon them instead of the default ssh log. Mihai ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] How to add virtio modules automatically to initrd in CentOS4?
Am 20.03.2010 16:12, schrieb Alexander Dalloz:
> Create the recommended /etc/modprobe.conf entry
>
> alias scsi_hostadapter${NUM} virtio_blk
Thanks a lot - somehow I missed the Red Hat knowledge base entry.
fs
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos
