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Re: [CentOS] Backup server
by Les Mikesell 13 Jan '10

13 Jan '10

Sorin Srbu wrote: > Hi all, > > I've built a new backup server for our linux-clients. > > Is Amanda the way to go for a backup-solution? > > It seems to be pretty powerful, if a bit finickety to set up initially. > > The way we currently do backups is to use rsync from the clients to two > folders on an older server that rolls over every other week. This worked fine > for a while, but the rsync is cumulative and the users generate a tremendous > amount of data every day after having had a client upgrade with newer and > hilariously fast computers for calculation. The previous *nix-admin set it up > this way with rsync, meaning that we in the long run have data that is way > obsolete and get increasingly difficult to maintain. > > As the backup solution must be next to free, ie "free beer", Amanda looks > suitable. > > What do you use for backing up data? Backuppc is good for this - it can use rsync for the transfers (or tar or smb) but all duplicate data is compressed and pooled even if found on different machines and it has an easy setup to control how long old copies are retained. -- Les Mikesell lesmikesell(a)gmail.com

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Re: [CentOS] Backup server
by Max Hetrick 13 Jan '10

13 Jan '10

Sorin Srbu wrote: > Hi all, > > I've built a new backup server for our linux-clients. > > Is Amanda the way to go for a backup-solution? > > It seems to be pretty powerful, if a bit finickety to set up initially. > > The way we currently do backups is to use rsync from the clients to two > folders on an older server that rolls over every other week. This worked fine > for a while, but the rsync is cumulative and the users generate a tremendous > amount of data every day after having had a client upgrade with newer and > hilariously fast computers for calculation. The previous *nix-admin set it up > this way with rsync, meaning that we in the long run have data that is way > obsolete and get increasingly difficult to maintain. > > As the backup solution must be next to free, ie "free beer", Amanda looks > suitable. > > What do you use for backing up data? You can check out BackupPC as well. That's what I use. Regards, Max

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Re: [CentOS] Backup server
by John Doe 13 Jan '10

13 Jan '10

From: Sorin Srbu <sorin.srbu(a)orgfarm.uu.se> > I've built a new backup server for our linux-clients. > Is Amanda the way to go for a backup-solution? > It seems to be pretty powerful, if a bit finickety to set up initially. > The way we currently do backups is to use rsync from the clients to two > folders on an older server that rolls over every other week. This worked fine > for a while, but the rsync is cumulative and the users generate a tremendous > amount of data every day after having had a client upgrade with newer and > hilariously fast computers for calculation. The previous *nix-admin set it up > this way with rsync, meaning that we in the long run have data that is way > obsolete and get increasingly difficult to maintain. > As the backup solution must be next to free, ie "free beer", Amanda looks > suitable. > What do you use for backing up data? Used amanda in the past (a decade ago)... I use bacula now. JD

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kickstart %pre help on C5.4
by Alan McKay 13 Jan '10

13 Jan '10

Hey folks! I'm doing some %pre work for the first time in a very long time, and have been at this all day so far and still don't have anything sorted out properly. First I tried just doing some simple bash stuff like this %pre #!/bin/bash # stuff I reduced "stuff" down to basically a simple "select" statement to echo and read input, just for the sake of debugging. My first problem is that when running the kickstart, the little box would come up saying it is running the pre scripts, but my scripts would never actually run. No output, no prompts, nothing. So after some muddling I tried this : %pre #!/bin/bash exec 1>&3 exec > /dev/tty chvt 3 exec < /dev/tty3 > /dev/tty3 clear # stuff I cannot say I really understand this - it is just something I came across. in any case, now my script seems to run fine, but after it finishes it does not appear to go back to my install. I get messages like : date INFO all kickstart %%pre script(s) have been run date WARNING resolution and depth not specified, try to be sane and that is it - it stops there. I've also tried just : %pre #!/bin/bash chvt 3 clear # stuff With the same results as above. This is all running within VMWare ESXi 4.0 if that matters. What am I missing here? thanks, -Alan -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food"

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Backup server
by Sorin Srbu 13 Jan '10

13 Jan '10

Hi all, I've built a new backup server for our linux-clients. Is Amanda the way to go for a backup-solution? It seems to be pretty powerful, if a bit finickety to set up initially. The way we currently do backups is to use rsync from the clients to two folders on an older server that rolls over every other week. This worked fine for a while, but the rsync is cumulative and the users generate a tremendous amount of data every day after having had a client upgrade with newer and hilariously fast computers for calculation. The previous *nix-admin set it up this way with rsync, meaning that we in the long run have data that is way obsolete and get increasingly difficult to maintain. As the backup solution must be next to free, ie "free beer", Amanda looks suitable. What do you use for backing up data? -- BW, Sorin ----------------------------------------------------------- # Sorin Srbu [Sysadmin, Systems Engineer] # Dept of Medicinal Chemistry, Phone: +46 (0)18-4714482 >3 signals> GSM # Div of Org Pharm Chem, Mobile: +46 (0)701-718023 # Box 574, Uppsala University, Fax: +46 (0)18-4714482 # SE-751 23 Uppsala, Sweden Visit: BMC, Husargatan 3, D5:512b # Web: http://www.orgfarm.uu.se ----------------------------------------------------------- # () ASCII ribbon campaign - Against html E-mail # /\ # # MotD follows: # One tentacle, one vote.

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IO Schedulers
by Tim Nelson 13 Jan '10

13 Jan '10

Greetings all- I'm on a quest to do some serious tuning to some of my production systems. All are on CentOS 5.x ranging from 5.0 to 5.4. I've been reading up on the various IO schedulers available in the kernel and I'm hoping some of you can lend some insightful suggestions. I typically have three classes of system in production: 1. Storage/DB - Backend nodes for the application servers, MySQL, NFS storage serving to frontend nodes (deadline?) 2. Web/SSL - Frontend nodes serving up web application (PHP/MYSQL), heavy SSL {en/de}cryption with both HTTPS/Apache as well as branch locations connecting via OpenVPN (cfq?) 3. Telephony/Communications - VoIP, usually Asterisk (full signaling + media services), massive context switching, very timing sensitive (Meetme conferencing, IAX2 trunk mode, etc) (deadline?) In my reading, I've found most people recommend deadline for DB intensive systems. CFQ seems to be recommended for most other uses. Noop and as seem to be irrelevant. Is this correct or am I way off base? I'm not currently under any enormous load on any of these systems, but I'm planning for growth and would like to see how different schedulers can make a difference. I welcome your suggestions and experiences. :-) --Tim

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Vmware server 1.x
by mattias 13 Jan '10

13 Jan '10

Anyone running centos 1.x on centos 5.3?

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offtopic repo's further discussion
by lostson 12 Jan '10

12 Jan '10

Hello All I may have ruffled some feathers with a comment i made earlier about rpmforge. This was posted back on the ML. On Tue, 2010-01-12 at 14:47 -0600, lostson wrote: > For one stop using rpmforge this repo does nothing but trash a system. Discussion on that for us? So to oblige here is a further discussion on this subject. The reason I say this about rpmforge is because if you install this repo and then do a yum update watch what it will install a huge amount of packages, which 9 times out of 10 is gonna get messy.(which can happen with any repo) And yes I know all about yum-pritorities another plugin that you can install to control the various repo's that one would like to add. I have no problems with this either. Here is my issue the simple joy of playing a mp3 on rhythmbox or amarok should not be a test of one's admin skills or repo knowledge to get it to play. But it is, it is always "here read these 2 pages about yum-priorities plugin and repo's" I mean cmon really? There are 2 repo's CentOS Extras and CentOS Plus could this functionality be placed in here ? Where is the repo I read about months ago that was gonna be available for users to submit packages to ? These are all questions that should be getting asked. Another point to make is on the list forums and other places we are seeing a influx of new users, coming from all sorts of other distro's and to make this simple instance so damn hard and having to pull from outside sources or repo's seems silly to me. Should CentOS not provide a simple and easy solution for some of these things ? I mean standard music and movie playback should be an easy one to get. There seems to be some areas where this is taking place for instance I know there is kmods for alot of things, but I am looking at the plain ol home user who wants to listen to music email basic desktop stuff. And yes I know all about the patent encumbered bs that everyone spouts all the time and i today's times this is just a moot point now. Lets face it some of the other distro's are starting to show their true colors and are often too concerned with updates and the latest and greatest packages. Which is breaking more things than anything else. So people are coming to try out CentOS because of the stability and lets face it one of the best and helpful communities out there right now. And yes I know CentOS is mainly known for the RHEL compatibility and more server usage than anything else and that is the main goal, but why can the project not cater to the home user and tinkerer and developer as well ? All in all I should not of called out rpmforge on such a short straw the work they do is excellent and any 3rd party repo you use has the potential to hose a machine no doubt about it. All in all I'm not saying I want Cent to become one of the "other" distros here I'm just saying is there room for improvement ? To make things easier for the average user at home. We see it all the time on the lists and IRC and I'm thinking a more straightforward approach to the situation and keeping some things not all of course, but the simple ones inhouse and in Cent repo's instead of having to go outside the box just for simple things. Oh well all in all this is just my humble opinion and I'm sure I will get ravaged and picked apart at the seams for this but hey that's me so fire away!! -- LostSon http://lostsonsvault.org CentOS - Its not just for servers ya know...

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directory permissions
by Carlos Santana 12 Jan '10

12 Jan '10

Hi, I have changed directory ownership permissions recursively such that it is owned by username:groupname , where groupname is not the default group, i.e., username. However, when a user creates a new file the default permissions are again username:username. How can I give ownership permissions on a particular directory so that any files created in that directory will always have specifc username:groupname permissions? Also is there any option that would allow only owner to delete files, even though group has rwx permissions? Thanks, CS.

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Trip to FOSDEM from London
by Geerd-Dietger Hoffmann 12 Jan '10

12 Jan '10

Hello We are organizing a trip to Brussels for Fosdem in February starting from London. FOSDEM (Free and Open Source Development European Meeting) is a European event centered around Free and Open Source software development. It is aimed at developers and all interested in the Free and Open Source news in the world. Its goals are to enable developers to meet and to promote the awareness and use of free and open source software. It is said to be the biggest gathering of Open Source interested people in Europe and the speaker list is quite impressive. We will be leaving London on Friday (5. Feb) evening and returning on Sunday (7. Feb). One of our goals is it to keep the total cost for the weekend under 200 Pounds, which is quite cheep for a weekend in Brussels. People who are interested can look at the wiki [1] or drop me a mail. Everyone is welcome. Cheers Didi [1] http://www.bunix.org.uk/wiki/doku.php/events:fosdem2010 -- My www page: www.ribalba.de Email / Jabber: ribalba(a)gmail.com Skype : ribalba

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Rhythmbox won't play mp3 files
by Kevin Kempter 12 Jan '10

12 Jan '10

Hi all; I'm actually running RHEL 5.4 I installed the rpmforge centos repo (and disabled it). Then I installed the following: yum --enablerepo=rpmforge install libdvdcss libdvdread libdvdplay libdvdnav lsdvd mplayerplug-in mplayer mplayer-gui compat-libstdc++-33 flash-plugin gstreamer-plugins-bad gstreamer-plugins-ugly gstreamer-ffmpeg libquicktime yum --enablerepo=rpmforge install xmms which installed these: xmms gdk-pixbuf glib gtk+ mikmod yum --enablerepo=rpmforge install gstreamer gstreamer gstreamer-plugins-base gstreamer-plugins-good gstreamer-plugins-ugly gstreamer-tools which installed these: gstreamer-plugins-ugly a52dec amrnb lame libcdio libdvdcss libdvdread libid3tag libmad libsidplay libsndfile mpeg2dec twolame Anyone know what else I need to make rhythmbox recognize/play mp3 files? Thanks in advance.

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Re: [CentOS] Get Me Outta Here! Web site security issue
by m.roth＠5-cent.us 12 Jan '10

12 Jan '10

Jason wrote: > mark wrote: >> Jason wrote: >>> How do I stop this from happing? Do I need to buy an SSL cert? Aren't >>> these really expensive per server and I have 5 servers I would need to >>> do >>> this too. > >>The *only* way is to buy certs. And it'll be one for each sitename. And >>you'll have to answer a *lot* of questions.... Security's cranking up, >>esp. if you're accepting credit cards, in which case it's *really* >>ratcheted up. > > What are the organizations that do this properly and inexpensively. No idea. > > One for each domain name, correct? > Yep. Webservers will compare the name and the sitename. mark

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multipath
by Paras pradhan 12 Jan '10

12 Jan '10

Hi. Somehow I do not see any out put using multipath -l or multipath -ll . But I can see using dry run ie multipath -d. Also I do not see /dev/dm-* It was there before. How do I re claim it. Thanks! Paras.

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KVM management tools.....
by Tom Bishop 12 Jan '10

12 Jan '10

Looking at what my best options for managing KVM via a gui. Running Centos 5.4 and have several machines and want to migrate off of vmware server 2.x. So far it appears that the management tools haven't quite cought up to Vmware but are gaining and closing. I have been looking at convirt, and others. I like what I see in Ovirt but I'm not sure it is available for centos 5.4, or is it? Is there anyone running ovirt in centos? Also, what are folks using for their management tools for KVM, Thanks.....

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Strange problem updating machine
by Marcelo M. Garcia 12 Jan '10

12 Jan '10

Hi Today I updated one machine with CentOS-5.4 (2.6.18-164.6.1.el5) x86_64 (Intel(R) Xeon(R) CPU X5450 @ 3.00GHz) to "2.6.18-164.10.1.el5", but in some places, like /boot[1] and in the menu /boot/grub/menu.lst[2], appeared as 2.6.18-164.1.10 - the "1" and the "10" swapped. Did anybody else had similar problems? The update worked fine in i686 workstation and x86_64 xen kernels. Thanks Marcelo [1] config-2.6.18-128.1.10.el5 initrd-2.6.18-128.10.1.el5.img vmlinuz-2.6.18-128.1.10.el5 System.map-2.6.18-128.1.10.el5 [2] title CentOS (2.6.18-128.1.10.el5) root (hd0,0) kernel /vmlinuz-2.6.18-128.1.10.el5 ro root=LABEL=/ rhgb quiet initrd /initrd-2.6.18-128.1.10.el5.img

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Vmware server 2.0.2 and Centos 5.4
by Tom Bishop 12 Jan '10

12 Jan '10

I know of the issue using vmware server 2.0.2 and centos 5.4, but is their any reason not to use the .rpm install of for centos? I have always used the .tar file but this time used the rpm and it appeared to install and not crash. I went ahead and did the glib correction but I was wondering if using the rpm was not the rght thing to do, Thanks.

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digikam and mp3 sound on RHEL
by Kevin Kempter 12 Jan '10

12 Jan '10

Hi All; after years of running free Linux distros I've finally come to a place where I must have solid stability for my work laptop so I've purchased RHEL Workstation. I like it well enough - however I'd like to install digikam and get my system to play mp3's. I'm thinking I could get both of these from a centos repository. What do you'all think? If so, could someone point me to the correct repo(s) and the packages I'd need for playing mp3's? Thanks in advance

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VMWare server 2
by attila.mathe＠orange-ftgroup.com 12 Jan '10

12 Jan '10

Hi All, I have installed VMWare 2.0.2-203138_x64 on a CentOS 5.4 x64. Everything appears to work fine. I can create the virtual machine but when I power it on the whole vmware web access is unreachable on default port 8222/8333. [root@Panda]# uname -a Linux Panda 2.6.18-164.10.1.el5 #1 SMP Thu Jan 7 19:54:26 EST 2010 x86_64 x86_64 x86_64 GNU/Linux Does anybody know if there is a compatibility problem with the new kernel 2.6.180164.10.1 ? [root@Panda vmware-server-distrib]# /usr/bin/vmware @@PRODUCT_NAME@@ is installed, but it has not been (correctly) configured for the running kernel. To (re-)configure it, invoke the following command: /usr/bin/vmware-config.pl. Has anyone else experienced this issue? If so have you found a fix? Thx, A. ********************************* This message and any attachments (the "message") are confidential and intended solely for the addressees. Any unauthorised use or dissemination is prohibited. Messages are susceptible to alteration. France Telecom Group shall not be liable for the message if altered, changed or falsified. If you are not the intended addressee of this message, please cancel it immediately and inform the sender. ********************************

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need Centos5.4 url download
by Anas Alnaffar 12 Jan '10

12 Jan '10

>From where can I download Centos5.4 Thanks Anas

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Re: [CentOS] 8-15 TB storage: any recommendations?
by Per Qvindesland 12 Jan '10

12 Jan '10

Hi Appologies I have not been following the thread here so am just wondering if you have a MSA, EVA, XP left hand san or if this is just storage that sits on the server with samba share? also what link is between fc or ethernet. Regards Per Qvindesland At Tisdag, 12-01-2010 on 11:57 "Chan Chung Hang Christopher" wrote: Karanbir Singh wrote: > On 12/01/10 00:02, Christopher Chan wrote: >>> problems mostly centered around management and performance issues. the >>> world is littered with stores of cciss fail >> Really? Man, I have been given this spanking new HP DL370 G6 and running >> Centos 5.4 on it... > > I've got a couple of DL380's at one setup and another 12 DL360's at > another place. We have had enough problems with interfaces that all the > machines are now running off remote-storage. Our storage incident rate > has gone from 1/day average to under 2/month since then. > > all of these machines are G4 and G5's running CentOS-5/x86_64 > Eeek! That thing will be hosting the school's vle. Looks like I better memorize the after hours password for HP support. What problems did you have? Do they occur mostly when the boxes are under high I/O load? This is really new to me as I had no problems with a DL360 G3 box that ran Windows 2000 and Exchange 2000 with regards to disk problems in my previous job. _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

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Raising ftp priority?
by hadi motamedi 12 Jan '10

12 Jan '10

Dear All I need to ftp all of the files & folders of CentOS 5 server through WS_FTP . But it just lets for /home/www user login , but not root user . As I want to see and have all of files , can you please let me know how can I raise the ftp priority such that WS_FTP can login as root user . Thank you

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rsync optimization
by xufengnju 12 Jan '10

12 Jan '10

Hi, We currently have upload servers in one data center(A), and users upload the images there. We have storage server in another data center(B). When users upload many images at the same time, we face sync difficulties. On B, we use rsync in server mode, with authentication. On A, we use `rsync -azpogtRv --safe-links 1/ rsync://user@serverB/img/ --password-file=/var/www/r.passwd ` Both ends run centos 5.3 X86_64. Any suggestions to optimize rsync in this case? Thank you in advance. 2010-01-11 xufengnju

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Horde - epel vs. extras?
by Les Mikesell 11 Jan '10

11 Jan '10

When updating a centos 5.x box with the horde package, should the extras or epel version win? -- Les Mikesell lesmikesell(a)gmail.com

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Help finding the X man page.
by Todd Denniston 11 Jan '10

11 Jan '10

I would like to tweak the way my gnome-terminals are coming up and the `man gnome-terminal` refers me to the "X" man page (specifically for --geometry). Although I have found what is probably an adequate version on line[1] (from the x.org folks no less), I would like to have the man page from CentOS ON my system. my yum foo is not doing so well... $ yum whatprovides \*/man7\*/X\*gz Loaded plugins: fastestmirror, security No Matches found and $ yum whatprovides \*/man\*/X\*gz ... is a bit overwhelming and did not seem to have what I was looking for. further gentle clue-by-four available? [1] http://www.x.org/archive/X11R6.8.1/doc/X.7.html -- Todd Denniston Crane Division, Naval Surface Warfare Center (NSWC Crane) Harnessing the Power of Technology for the Warfighter

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looking for kernel-xen- 2.6.18-164.el5
by Rudi Ahlers 11 Jan '10

11 Jan '10

Hi all, does anyone know where I can download kernel-xen- 2.6.18-164.el5 for CentOS 5? I can't install it with yum, since yum has a much newer version already. I have searched google, but can't find a download link, only a lot of references to the kernel w.r.t problems. -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532

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Laptop for CentOS-5
by James B. Byrne 11 Jan '10

11 Jan '10

I have a defective HP-Compaq nx9420 and so I am looking to replace it. I have pretty much decided to buy no further MicroSoft based products and would very much like to hear recommendations for a suitable notebook host to provide me with Linux based alternative. Given that all the basic functionality required is provided, the main thing that I am looking for is reliability of the host itself. I do a deal of traveling so physical robustness is an issue. But I also use my notebook for hours at a time, generally every day. This means that I am typically on a/c current rather than batteries and that power regulation and heat dissipation are also concerns. The power regulator circuit is in fact what I believe has failed on the nx9420. Not infrequently I have the notebook on my chest or lap while working at home. So the ventilation clearances provided by a flat desk support are frequently absent and the notebook design must accommodate this. I would like to use CentOs as this is what I am most familiar with. But, I am open to CentOS alternatives like Ubuntu or even a non-Linux alternative like a PowerMac with OS-X. I have already looked at the Dell site on the basis of a friends recommendation. While Dell mentions Ubuntu is available for some of their notebook computers they do not seem to provide any way to actually configure a system with it. So, my desires are: WANT: Robust construction Reliable quality Reasonable weight (< 2.5 kg all in) Supported sound and video reproduction of reasonable quality 15-17" lcd screen Out-of-the-box support for wireless networking Battery life > 2.0 hrs. Not MS-Windows PREFER: 64 bit core duo 2 2-4+ Gb RAM 120+ Gb HDD writable multi-mode DVD/CD drive CentOS-5+ Your system suggestions, both for hardware and OS, are most welcome. -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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Re: [CentOS] looking for kernel-xen- 2.6.18-164.el5 [SOLVED]
by Rudi Ahlers 11 Jan '10

11 Jan '10

On Mon, Jan 11, 2010 at 5:49 PM, Karanbir Singh <mail-lists(a)karan.org> wrote: > On 01/11/2010 03:17 PM, Rudi Ahlers wrote: >> Nope, there's a newer kernel installed already. I need this particular >> older one for one of the XEN domU's on this server, and don't want to >> downgrade the running kernel and reboot the server > > man yum, > > look at the --showduplicates option. you can then use the output to have > yum with specific versions eg: > > yum install <pkg>-<version> > > -- > Karanbir Singh Thanx, this is exactly what I needed :) And now I learned something new as well -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532

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ntpd appears to not be able to query ntp servers automatically?
by Ryan Pugatch 11 Jan '10

11 Jan '10

Hello all, After reboot, one of my servers running CentOS5 no longer keeps its clock synced automatically. ntpd is running and I don't see anything weird being logged. If I kick off ntpd with 'ntpd -q', it will sync the clock. However, if I just rely on ntpd started with 'service ntpd start', syncing does not happen. I previously had: # Undisciplined Local Clock. This is a fake driver intended for backup # and when no outside source of synchronized time is available. server 127.127.1.0 # local clock fudge 127.127.1.0 stratum 10 and noticed that ntpd would fail down to using the undisciplined local clock if I checked with ntpstat. I commented those out, and now ntpstat simply says: unsynchronised time server re-starting polling server every 64 Any idea as to why ntpd -q will sync, but otherwise the clock will not stay in sync even when the local clock drifts by several minutes? It worked fine prior to reboot. Thanks, Ryan

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Securing http authentication from brute force attacks
by James B. Byrne 11 Jan '10

11 Jan '10

We have several web applications deployed under Apache that require a user id / password authentication. Some of these use htdigest and others use the application itself. Recently we have experienced several brute force attacks against some of these services which have been dealt with for the nonce by changes to iptables. However, I am not convinced that these changes are the answer. Therefore I have been looking at http protection and have run across a few independently provided modules for Apache http security, mod_security being one of them. I would like the opinion of other CentOS sysadmins who already have faced this same problem, with respect to the solutions available and those that they choose for themselves. Sincerely, -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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Select pam module for select users
by yanagik317 11 Jan '10

11 Jan '10

Dear CentOS people, Maybe I didn't read enough, but is there a way to use pam_ldap for some users (w/o trying pam_krb5 first, which is listed before pam_ldap) and pam_krb5 for others. Thank you, --Koji

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2 CPU's problem(Centos5)
by Anas Alnaffar 11 Jan '10

11 Jan '10

Dears, I hope this email finds you well and in a very good health, I've been installed Centos5 on HP DL380 G5 server(Dual Processor), but actually we are unable to see the other CPU, during boot I get this error message, Module microcode doesn't exit /proc/modules Please advise. Thanks Anas Al-Naffar Anas Al-Naffar Content Manager Tel.: +966 1 2177777 Fax: +966 1 4643 510 Mobile: +966 5 62982104 Riyadh - KSA www.tijaritelecom.com cid:image002.jpg@01C96449.3023C2D0

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Problems with IPTABLES recent module.
by James B. Byrne 11 Jan '10

11 Jan '10

I went to reload (iptables-restore) my iptables configuration and obtained an error at the COMMIT statement. No further details were provided even when I ran restore with the -v option. I determined that none of my backed up configuration files going back to October will load either. This is more than passing strange because I altered and uploaded the iptables configuration on this host several times in December alone. These alterations certainly applied without error at the time. Through painful trial and error (it is a fairly large configuration) I discovered that I cannot add any rule using the __recent__ module. Adding a single rule referencing that module inevitably results in a load error reported at the following COMMIT statement. An example of an actual rule that fails follows: . . . :BRUTE_FORCE - [0:0] . . . -A BRUTE_FORCE -p tcp -m tcp -m state -m recent --set -i eth0 --dport 22 --state NEW -A BRUTE_FORCE -m comment -j RETURN --comment "Return to calling chain" COMMIT Perhaps I am missing something obvious but as far as I can determine the rule using the recent module should simply add all traffic coming in over i/f eth0 consigned to port 22 on any ip-addr to the DEFAULT list. I do not expect it to give an error. If I remove this statement then the iptables file loads without error. An interesting thing happens if I simply add a trailing -j to the end of recent module rule above. It fails with this specific error: -c packet counter not numeric Does anyone see what I am doing wrong? Sincerely, -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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apache httpd, webdav, ssl - something is wrong, but what?
by Götz Reinicke - IT-Koordinator 11 Jan '10

11 Jan '10

Hi, happy new year! Today I set up a new web(dav) server for our .ical-System (phpIcalendar) and copied the config and data files from the old server. But somthing is wrong with the configuration and I'm blind to find the error. On the old server, I can still publish my calender from e.g. Apple iCal at the server URL with http http://oldserver.filmakademie.de/DAVdocs On the new server, I can publish only with https - so only ssl secured. https://newserver.filmakademie.de/DAVdocs The webpage for the calendars can be accessed unsecured with http. http://oldserver.filmakademie.de/ http://newserver.filmakademie.de/ Thanks for any hint or support or suggestion to find the error. -- Götz Reinicke IT-Koordinator Tel. +49 7141 969 420 Fax +49 7141 969 55 420 E-Mail goetz.reinicke(a)filmakademie.de Filmakademie Baden-Württemberg GmbH Akademiehof 10 71638 Ludwigsburg www.filmakademie.de Eintragung Amtsgericht Stuttgart HRB 205016 Vorsitzende des Aufsichtsrats: Prof. Dr. Claudia Hübner Staatsrätin für Demographischen Wandel und für Senioren im Staatsministerium Geschäftsführer: Prof. Thomas Schadt

1 0

Cloned Centos Boxes - First Run to run again?
by Mr Gabriel 11 Jan '10

11 Jan '10

I need to build a bank of 12 centos boxes, for an experiment I'm doing. I don't want to install centos 12 times, I'm using virtual box across three machines, how can I get the first run scripts to run again to that the box is reconfigured on it's next boot. I want each box to appear like a fresh unique install.

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SNAT
by David Hláčik 11 Jan '10

11 Jan '10

Hello I will briefly draw the situation Router with one interface eth0 , to local network 10.123.0.0/16 on a local network ADSL modem with IP 10.123.10.11 I want to use 10.123.10.11 as a connection to internet . Because of that I have created default route "ip route add default via 10.123.10.11 dev eth0" I do not want my ADSL modem to do NATing , since it shows to be slow. I have configured static route on ADSL modem "10.123.0.0/16 via 10.123.10.11" which ensures traffic comming from internet will ge to my router. Now i want to configure NATTING. My concern is, how to create iptables rule which will match only the traffic going via 10.123.10.11 and only for this will make SNAT. If I will do iptables -A POSTROUTING -o eth0 --j SNAT --to-source 213.194.242.198 this will not work . I need to add there a magic words that only traffic going via 10.123.10.11 should be SNATted. Please help, Thank you in advance. David

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interfaces start-up order
by David Hláčik 10 Jan '10

10 Jan '10

Hello guys, On my Centos5 interfaces start in this order : eth0,eth1,eth2,ppp0 I believe it goes by alpabethical order. Is there a possibility to change this order? I want to start interfaces which connects to internet first , i.e. in order eth0,ppp0,eth1,eth2. Can I just rename ifcfg-* scripts in etc/sysconfig/network-scripts and change alphabetical order? Thank you and Best Regards, David

2 1

ADSL ppp0, persist
by David Hláčik 10 Jan '10

10 Jan '10

Hello guys, I have two ISP's connected to my router. One via eth2, second one via ADSL modem, with ppoe doing on my Centos 5 . The problem I have is, that when ADSL fails , interface ppp0 is removed. This also removes my static routes configured for this interface. I do not want that, as I have load balancing configured and default route is removed when ppp0 interface disapears. This is my ifcfg-ppp0 config : USERCTL=yes BOOTPROTO=dialup NAME=DSLppp0 DEVICE=ppp0 TYPE=xDSL ONBOOT=yes PIDFILE=/var/run/pppoe-adsl.pid FIREWALL=NONE PING=. PPPOE_TIMEOUT=80 LCP_FAILURE=3 LCP_INTERVAL=20 CLAMPMSS=1412 CONNECT_POLL=6 CONNECT_TIMEOUT=60 DEFROUTE=no SYNCHRONOUS=no ETH=eth0 PROVIDER=DSLppp0 USER=O2 PEERDNS=no DEMAND=no PERSIST=yes As you can see, I have PERSIST=yes , which according to documentation should keep ppp0 interface ON. Well it does but only for a couple of seconds. I suspect this to be other parameters problem (CONNECT_TIMEOUT or PPPOE_TIMEOUT). Can you please help me with this? Thank you in advance! David

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Centos5(Oracle10gDB)high load average
by Anas Alnaffar 10 Jan '10

10 Jan '10

Hello I've installed oracle DB and oracle application 10g with Cetnos5(HP Dl380 Dual Processor), but always I have big load average(CPU not id), plz advise Thanks Anas Al-Naffar

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Can't Compile Driver due to Missing version.h
by Mufit Eribol 10 Jan '10

10 Jan '10

Dear All, I use a raid card on my Centos 5.4 server. Whenever I updated the kernel, I used to compile drivers of the card for the new kernel. I have done this many times in the past without any problem. But this time after installing the new kernel files given below, I can not compile the new driver anymore. kernel-headers-2.6.18-164.9.1.el5 kernel-PAE-devel-2.6.18-164.9.1.el5 kernel-PAE-2.6.18-164.9.1.el5 The make command can not find /include/linux/version.h file with the following error. But the file is already there. make KERNELDIR= /lib/modules/2.6.18-164.9.1.el5PAE/build grep: /include/linux/version.h: No such file or directory expr: syntax error ../../../inc/linux/Makefile.def:85: *** Only kernel 2.4/2.6 is supported but you use 2.. Stop. [root@server linux]#locate include\/linux\/version.h command gives the following result. /usr/include/linux/version.h /usr/src/kernels/2.6.18-128.1.1.el5-PAE-i686/include/linux/version.h /usr/src/kernels/2.6.18-164.9.1.el5-PAE-i686/include/linux/version.h /usr/src/kernels/2.6.18-92.1.18.el5-PAE-i686/include/linux/version.h I would appreciate any help. Thank you. Mufit Eribol

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why no centos 5.3 or 5.4 online manuals?
by Robert P. J. Day 09 Jan '10

09 Jan '10

i zipped over to centos.org to check out the 5.4 manuals, and what i found was: http://www.centos.org/docs/5/ which stops at 5.2. now, i don't really see this as a problem since i can always get what i need here: http://www.redhat.com/docs/manuals/enterprise/ i'm just curious as to whether centos is just not bothering to rebrand the manuals since it's just as easy to get that info from red hat. rday -- ======================================================================== Robert P. J. Day Waterloo, Ontario, CANADA Linux Consulting, Training and Kernel Pedantry. Web page: http://crashcourse.ca Twitter: http://twitter.com/rpjday ========================================================================

3 2

Lilo for CentOS 5?
by Robert Heller 09 Jan '10

09 Jan '10

Does there exist a version of Lilo built for x86_64 CentOS 5? It does not seem to be on the DVD. *I* really, really, prefer Lilo over Grub. -- Robert Heller -- 978-544-6933 Deepwoods Software -- Download the Model Railroad System http://www.deepsoft.com/ -- Binaries for Linux and MS-Windows heller(a)deepsoft.com -- http://www.deepsoft.com/ModelRailroadSystem/

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PlanetCentOS daniel at centos dot org email address is unavailable
by Vladislav Rastrusny 09 Jan '10

09 Jan '10

Hello. I wanted to add my blog to PlanetCentOS and suddenly discovered, that email address listed on http://planet.centos.org/ is unavailable. Can you please tell me, who should I contact for adding my blog to PlanetCentOS? ---------------------------------- Best regards, Vladislav "FractalizeR" Rastrusny http://www.fractalizer.ru FractalizeR(a)yandex.ru

2 1

what provices "replace" command?
by Rudi Ahlers 09 Jan '10

09 Jan '10

I am used to using the replace command to quickly replace strings in file, but it's not available on some of my fresh CentOS 5.4 servers. "yum info replace", "yum whatprovides replace", and "yum search replace" doesn't show me which package(s) to install to get it. So, does anyone know which package to install to get the "replace" command? Google doesn't help either since the work "replace" is too common Results 1 - 10 of about 5,440,000 for how to install "replace" command on linux -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532

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tar exclude command
by adrian kok 09 Jan '10

09 Jan '10

Hi I have problem in tar command Can you help? tar -cv --exclude /var/named/chroot/proc/* -zf backup.tar.gz /var/named /var/named/chroot/proc/net/route /var/named/chroot/proc/net/udp /var/named/chroot/proc/net/tcp tar: Error exit delayed from previous errors Thank you Send instant messages to your online friends http://uk.messenger.yahoo.com

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CentOS-announce Digest, Vol 59, Issue 3
by centos-announce-request＠centos.org 09 Jan '10

09 Jan '10

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2010:0019 Important CentOS 5 i386 kernel Update (Karanbir Singh) 2. CESA-2010:0019 Important CentOS 5 x86_64 kernel Update (Karanbir Singh) ---------------------------------------------------------------------- Message: 1 Date: Fri, 8 Jan 2010 21:25:32 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2010:0019 Important CentOS 5 i386 kernel Update To: centos-announce(a)centos.org Message-ID: <20100108212532.GA29721(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2010:0019 Important Upstream details at : http://rhn.redhat.com/errata/RHSA-2010-0019.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: 3e6b7168c142e7fb08b7ac290e2ac8a6 kernel-2.6.18-164.10.1.el5.i686.rpm 3b0145beacfed70bb084fe2025a7f313 kernel-debug-2.6.18-164.10.1.el5.i686.rpm 01bef00e056e9e76104b205504abd015 kernel-debug-devel-2.6.18-164.10.1.el5.i686.rpm f226e18c1bc58c4b7d883f31b58efd9a kernel-devel-2.6.18-164.10.1.el5.i686.rpm 6b515a86d9584bfaf18cc52ebdd228c0 kernel-doc-2.6.18-164.10.1.el5.noarch.rpm 3b25c897904043f054624b4c2813d7e8 kernel-headers-2.6.18-164.10.1.el5.i386.rpm a243dc7316ce6bebe08743b4095f731a kernel-PAE-2.6.18-164.10.1.el5.i686.rpm 70174f00af81920cfa95d2717049eeda kernel-PAE-devel-2.6.18-164.10.1.el5.i686.rpm aed5d9fb3f24e054a3e4db7472cbd768 kernel-xen-2.6.18-164.10.1.el5.i686.rpm 3581a804d744e97c25871f10461a16c0 kernel-xen-devel-2.6.18-164.10.1.el5.i686.rpm Source: 73e7bb41bcd258a16c8a04cffe17f55c kernel-2.6.18-164.10.1.el5.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Fri, 8 Jan 2010 21:25:33 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2010:0019 Important CentOS 5 x86_64 kernel Update To: centos-announce(a)centos.org Message-ID: <20100108212533.GA29737(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2010:0019 Important Upstream details at : http://rhn.redhat.com/errata/RHSA-2010-0019.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: df71c54278df0af0eb6672f9e3f558ce kernel-2.6.18-164.10.1.el5.x86_64.rpm 7813082afeee01d84165833745e424b2 kernel-debug-2.6.18-164.10.1.el5.x86_64.rpm 789ab5226f4a0492aba5aa62ae81e75a kernel-debug-devel-2.6.18-164.10.1.el5.x86_64.rpm 538cb13ecdd97bf86163cd7ec2b743be kernel-devel-2.6.18-164.10.1.el5.x86_64.rpm c1f049b11c6bbe3698bdcd8cec09e8ca kernel-doc-2.6.18-164.10.1.el5.noarch.rpm 637c36f72d28f1037e958cc651b85f8e kernel-headers-2.6.18-164.10.1.el5.x86_64.rpm d6777b753683d9be859ed5f746e5d435 kernel-xen-2.6.18-164.10.1.el5.x86_64.rpm 1c57f3d44470ee51284807b3dc69660e kernel-xen-devel-2.6.18-164.10.1.el5.x86_64.rpm Source: 73e7bb41bcd258a16c8a04cffe17f55c kernel-2.6.18-164.10.1.el5.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 59, Issue 3 **********************************************

1 0

Moving LVM from one machine to another
by Stephen Harris 09 Jan '10

09 Jan '10

My CentOS4 machine died (CPU cooler failure, causing CPU to die). In this machine I had 5 Tbyte disks in a RAID5, and LVM structures on that. Now I've moved those 5 disks onto a CentOS5 machine and the RAID array is being rebuilt. However the LVM structures weren't detected at boot time. I was able to "vgscan" and 'vgchange -a y' to bring the volume online and then fsck the logical volumes. But I was concerned this didn't happen at boot time. Do I need to do anything else, or have the commands I've run done sufficient? FWIW, this machine has no other LVM (nor RAID) disks on it. (only 5 more hours for the rebuild to complete!) -- rgds Stephen

2 4

Is it safe to run only the XEN kernel on dom0 host?
by Rudi Ahlers 09 Jan '10

09 Jan '10

Hi, I have an issue with my XEN servers, in that when I do a yum upgrade, it upgrades the kernels, and then updates the grub.conf file to boot with the normal Linux kernel, and not the XEN kernel - and I tend to forget to update the grub.conf, until I reboot and see XEN isn't running. So, is it safe to remove the normal kernel & kernel-development, and only run the XEN kernel? This is what I have currently: root@usaxen03:[~]$ rpm -qa | grep kernel kernel-xen-2.6.18-128.7.1.el5 kernel-xen-2.6.18-164.10.1.el5 kernel-xen-2.6.18-164.el5 kernel-headers-2.6.18-164.10.1.el5 kernel-xen-2.6.18-164.6.1.el5 kernel-xen-2.6.18-164.9.1.el5 When I want to remove kernel-headers, it wants to remove gcc as well: root@usaxen03:[~]$ rpm -qa | grep kernel kernel-xen-2.6.18-128.7.1.el5 kernel-xen-2.6.18-164.10.1.el5 kernel-xen-2.6.18-164.el5 kernel-headers-2.6.18-164.10.1.el5 kernel-xen-2.6.18-164.6.1.el5 kernel-xen-2.6.18-164.9.1.el5 Do I really need gcc on the XEN dom0 host? The servers are all running CentOS 5.4 x64

3 2

chroot a few apps
by Vadkan Jozsef 09 Jan '10

09 Jan '10

Hi. What kind of chroot should I use, if I want to make a more secured desktop, running e.g.: pdf reader webbrowser audio player video player openoffice picture viewer mua ooo virtualbox e.g.: if theres a javascript vulnerability in google chrome [I haven't heard a NoScript extension for it :( ] a chroot would be good for stopping it from doing something bad with the whole system. or e.g.: I have to open a .doc file, that I don't trust, or a PDF can contain malicious code :( Any tips/docs/howtos? Thank you!

2 1

Re: [CentOS] Apache/Cluster issue -- Single public IP address
by david＠pnyet.web.id 09 Jan '10

09 Jan '10

You can try heartbeart... :) DS ------Original Message------ From: avi(a)myphonebook.co.in Sender: centos-bounces(a)centos.org To: centos(a)centos.org ReplyTo: CentOS mailing list Subject: [CentOS] Apache/Cluster issue -- Single public IP address Sent: Jan 8, 2010 11:28 PM I want to set up a cluster that is used for web hosting (RHCS cluster). Recently, I experimented with a 2 node cluster and was able to run it successfully. However, I have started facing some issues with Apache, which I had configured as a service using the Cluster configuration tool. To do this Apache needs a floating IP address. This address is in addition to the network interface IP address. For example if my NIC IP is 192.168.1.1, then I need 192.168.1.2 as a floating IP address, and this has to be bound to apache. At least this is what I understood after several hours of experimentation. I also figured that if I configured 192.168.1.1 as a cluster resource and bound it to apache, the cluster manager failed to start apache and the NIC was put "off". ( In effect 192.168.1.1 was removed from the NIC ). However, the Apache service ran fine when bound to the ADDITIONAL IP i.e. 192.168.1.2 ( the floating IP ). The above example was just a lab setup to test the cluster. My problem is that I only have a single public IP address, to serve my web server and my question is this: Is this the end of the road, for installing apache as a service with ONE public IP address?? I am willing to give further info, if required.

2 1

How do I...
by fred smith 09 Jan '10

09 Jan '10

Only tangentially on topic, at best... Given a pile of html files, comprising chapters of a book, with a single html file that serves as a table of contents to the group, how would I turn the entire book into a single PDF? I can't think of a way to do that, all I can come up with would result in a pile of PDFs, one per html. But there's gotta be a better way. Suggestions welcome. Thanks in advance! (doing this on Linux, of course, which makes it slightly on topic.) Fred -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- I can do all things through Christ who strengthens me. ------------------------------ Philippians 4:13 -------------------------------

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