[CentOS] x86_64 EDAC throwing error
Hi All, We have installed CentOS 5.3 x86_64 in an HP DL585 server with AMD Opteron 64 bit processor and 16 GB RAM. The kernel version is 2.6.18-128.el5 . Now this has thrown an error message in /var/log/message, Jul 3 21:41:11 db1 kernel: EDAC k8 MC0: general bus error: participating processor(local node origin), time-out(no timeout) memory transaction type(generic read), mem or i/o(mem access), cache level(generic) Jul 3 21:41:11 db1 kernel: EDAC MC0: CE page 0x65bc7, offset 0x6a0, grain 8, syndrome 0x6e1a, row 0, channel 0, label "": k8_edac Jul 3 21:41:11 db1 kernel: EDAC k8 MC0: extended error code: ECC chipkill x4 error Jul 3 22:00:00 db1 ntpdate[3813]: step time server 120.88.46.10 offset -4.375417 sec Jul 3 22:12:57 db1 kernel: EDAC k8 MC0: general bus error: participating processor(local node origin), time-out(no timeout) memory transaction type(generic read), mem or i/o(mem access), cache level(generic) Jul 3 22:12:57 db1 kernel: EDAC MC0: CE page 0x65bc7, offset 0x6a0, grain 8, syndrome 0x6e1a, row 0, channel 0, label "": k8_edac Jul 3 22:12:57 db1 kernel: EDAC k8 MC0: extended error code: ECC chipkill x4 error I understand this is an error message from Error Detection And Control module and just wanna confirm that this is not a kernel or software related issue. If Hardware related is it confined only to the Physical memory stick installed or processor related? Any hint on this?? Regards, Kurian Thayil. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Replicate desktop configuration for other users using /etc/skel
JohnS a écrit : > yum install Sabayon.i386 This looks exactly like the tool I need. But isn't the project abandoned? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Dag's comment at linuxtag
>The project is a confluence of a sub-project under the cAos project, Is this still true? Is Centos still officially associated with cAos? Or was that supposed to be in the past tense? -geoff - Geoff Galitz Blankenheim NRW, Germany http://www.galitz.org/ http://german-way.com/blog/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] new RAID5 array: 3x500GB with XFS
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 thus James A. Peltier spake: > On Fri, 3 Jul 2009, Coert Waagmeester wrote: > >> Hello all, >> >> I have yesterday after some typos, sent my ext3 RAID5 array to the >> void... >> >> I want to recreate it now, but I read on >> http://wiki.centos.org/HowTos/Disk_Optimization >> that you can optimize the filesystem on top of the RAID. >> >> Will this wiki article be exactly the same for XFS? >> >> Is it worth the trouble to also create an LVM volume on the RAID array? IMHO yes, as there are very nice features such as snapshotting and resizing (XFS handles that excellently!) without major hassle. I even use it on my 'workstation' (two RAID1, one for system, one huge for data; on top of both LVM, partitions ext3 and XFS). HTH, Timo >> Regards, >> Coert >> >> ___ >> CentOS mailing list >> CentOS@centos.org >> http://lists.centos.org/mailman/listinfo/centos > > You have to understand the details of how the raid was built, stripe size, > logical unit number and RAID-5 itself to properly optimize. Google for > XFS performance tuning and you'll find lots of details. -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.5 (GNU/Linux) Comment: Using GnuPG with CentOS - http://enigmail.mozdev.org iD8DBQFKTwMeO/2mgkVVV7kRAuWfAJ9xZ1IUo2bqfN58mqa82y9vbqY2wgCgqPeh r7m12plXWTWRu0XdGwH7l3M= =M9uW -END PGP SIGNATURE- ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Replicate desktop configuration for other users using /etc/skel
On Sat, 2009-07-04 at 09:08 +0200, Niki Kovacs wrote: > JohnS a écrit : > > > yum install Sabayon.i386 > > This looks exactly like the tool I need. But isn't the project abandoned? --- Niki. I don't see how it is abandoned when upstream slaps an article in rh magazine plus it is in fedora. Supported in CentOS 5.3. But there are better tools out there for server/desktop provisioning than that. I just recommended that to you because you wanted something simple. You can explore using ldap to have the profiles you need. Create one profile for diskless machines would have a consistant desktop. So may I ask are you writing a book on this? John ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Getting started with NFS
Hi, I've never been using NFS before, but I'm going to need it. I gathered some documentation (Deployment Guide, RHEL 5 Unleashed, general NFS docs) and I have a few machines to experiment with. After about two hours of reading and experimenting, I must admit the documentation is confusing, to say the least. Although some step-by-step tutorials are provided, none of them work. For example, the RHEL deployment guide mentions NFSv2, NFSv3 and NFSv4... but as much as I poke around, I don't even find a way to checkout which one of the version I'm running. So... 1) Can you suggest some reliable and well-written (think: newbie-friendly) documentation about NFS? 2) Usually I start out from a minimal install on desktop as well as servers. Which packages are needed on the servers side, and on the client side, in order for NFS to work correctly? None of the docs mentioned above says a word about it. Thanks, Niki ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Getting started with NFS
On Sat, 04 Jul 2009 10:02:44 +0200 Niki Kovacs wrote: > 1) Can you suggest some reliable and well-written (think: > newbie-friendly) documentation about NFS? There isn't much to setting up a simple NFS fileserver and client mount. Set up /etc/exports on the server (this assumes your client is 192.168.0.3) /whatever/where-ever/ 192.168.0.3(rw) Start the nfs service. Create a mount point on the client "mkdir /mnt/fileserver" then mount the fileserver there. "mount fileserver:/whatever/where-ever/ /mnt/fileserver" -- MELVILLE THEATRE ~ Melville Sask ~ http://www.melvilletheatre.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] software raid1 syncing
luc...@lastdot.org schrieb: > On Fri, Jul 3, 2009 at 9:15 PM, Steven Vishoot wrote: >> hello all, >> >> I have a setup that is raid 1 and put the mirrored drive back in and now it >> is still showing as degraded saying: raid1: raid set md6 active with 1 out >> of 2 mirrors with this message on all the raids.i know i am wrong by saying >> this but i thought putting in the driving and rebooting would start the re >> syncing itself. what do i have to do to add this back in, i am so confused >> with this process. >> >> centos 4.x >> >> ___ >> CentOS mailing list >> CentOS@centos.org >> http://lists.centos.org/mailman/listinfo/centos >> > > Well, just putting a new disk drive in the place of the bad one > doesn't cut it. You have to recreate partition table and then add the > partitions to the drive. > e.g. > sda = the old disk in the raid that has not failed > sdb = the newly added disk > dd if=/dev/sda of=/dev/sdb bs=512 count=1 > > That'll replicate the partition table and mbr to the new disk. > > Then starting addinf the new partitions to the linux raid: > mdadm -a /dev/sdb1 /dev/md0 and so on, depending what your setup is. > Do a: > cat /proc/mdstat and see what partitions are added to which raid. > Alternatively to a google search for howtos (e.g. > http://www.gagme.com/greg/linux/raid-lvm.php ) and learn how to manage > linux raid so you dont fsck up your system. well as I just did that yesterday I'd wish to add: a) dd if=/dev/sda of=/dev/sdb bs=512 count=1 will also copy the grub info so it's a good thing to do if you ever want to be able to boot from the new disk if the old disk goes bad. However it does not seem to copy the info about the extended partitions, just the primary ones. So in my case (I needed a sdb5 and sdb6) I had to manually (using fdisk) prepare the extended partitions, taking the old disk as a template. b) the syntax for mdadm is e.g. mdadm /dev/md0 --add /dev/sdb1 AFAICT although mdadm seems to be pretty smart about getting it right. HTH Kay ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Getting started with NFS
On Sat, 2009-07-04 at 10:02 +0200, Niki Kovacs wrote: > For example, the RHEL > deployment guide mentions NFSv2, NFSv3 and NFSv4... but as much as I > poke around, I don't even find a way to checkout which one of the > version I'm running. > --- That's because you have to specify what version of nfs you want or it defaults to what is installed on the server. See man nfs and man exports. It is in the man page which is astonishing to me. john ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Getting started with NFS
JohnS a écrit : > > It is in the man page which is astonishing to me. > Neither 'man nfs' nor 'man exports' specify any version. But I tried again to mount the NFS share, this time by specifying a filesystem, like this: # mount -t nfs4 raymonde:/data /home/shares Here's what I got this time: Warning: rpc.idmapd appears not to be running. All uids will be mapped to the nobody uid. ... and I didn't get a shell prompt back, so something didn't quite work out. I conclude that there's some daemon missing on the client (like I said, I always start out from a minimal configuration and then add packages as needed). Any idea what package rpc.idmapd belongs to, because a search with 'yum provides' and 'yum search' showed nothing. Niki ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] [Fwd: Re: Getting started with NFS]
--- Begin Message --- Frank Cox a écrit : There isn't much to setting up a simple NFS fileserver and client mount. Set up /etc/exports on the server (this assumes your client is 192.168.0.3) /whatever/where-ever/ 192.168.0.3(rw) Start the nfs service. Create a mount point on the client "mkdir /mnt/fileserver" then mount the fileserver there. "mount fileserver:/whatever/where-ever/ /mnt/fileserver" That's about exactly what I did. I setup the NFS server on machine 'raymonde' (192.168.1.4) on my local network. Then when I do this from another machine: [r...@lifebook ~]# mount raymonde:/data /home/shares Nothing happens for about a minute or so, and then I get the following error: mount.nfs: Input/output error Which leaves me clueless. Any idea what might go wrong here? --- End Message --- ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Getting started with NFS
On Sat, 2009-07-04 at 10:46 +0200, Niki Kovacs wrote: > JohnS a écrit : > > > > It is in the man page which is astonishing to me. > > > > Neither 'man nfs' nor 'man exports' specify any version. But I tried > again to mount the NFS share, this time by specifying a filesystem, like > this: > > # mount -t nfs4 raymonde:/data /home/shares > > Here's what I got this time: > > Warning: rpc.idmapd appears not to be running. > All uids will be mapped to the nobody uid. > > ... and I didn't get a shell prompt back, so something didn't quite work > out. I conclude that there's some daemon missing on the client (like I > said, I always start out from a minimal configuration and then add > packages as needed). Any idea what package rpc.idmapd belongs to, > because a search with 'yum provides' and 'yum search' showed nothing. > > Niki > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos Hi Things that control nfs on the server are 1. /etc/sysconfig/nfs no modifications required for me 2. /etc/exports see mine below 3. firewall settingsmine is off 4. /etc/idmapd.conf if using nfs4 - an nfs4 domain is required 5. /etc/fstab probably bind mounts needed - if using nfs4 First decision is whether to use nfs4 or not - this exports works for both on mine The mount command on the client is different in the two case nfs4 mount -t nfs4 maui:/global /global nfs3 mount maui:/exports/global /global --- maui.jaa.org.uk sysconfig 3# cat /etc/exports /exports 148.197.29.0/24(rw,insecure,sync,wdelay,no_subtree_check,no_root_squash,fsid=0) /exports/global 148.197.29.0/24(rw,insecure,sync,wdelay,no_subtree_check,nohide,no_root_squash) /exports/home 148.197.29.0/24(rw,insecure,sync,wdelay,no_subtree_check,nohide,no_root_squash) --- bind mounts for nfs4 maui.jaa.org.uk sysconfig 4# cat /etc/fstab LABEL=home_maui /home ext3 defaults1 2 LABEL=global_maui /global ext3 defaults1 2 /home /exports/home none bind 0 0 /global /exports/global none bind 0 0 --- maui.jaa.org.uk sysconfig 5# cat /etc/idmapd.conf [General] Verbosity = 0 Pipefs-Directory = /var/lib/nfs/rpc_pipefs #Domain = localdomain Domain = jaa.org.uk [Mapping] Nobody-User = nfsnobody Nobody-Group = nfsnobody [Translation] Method = nsswitch --- maui.jaa.org.uk sysconfig 6# ps -ef|grep -i rpc root 2380 1 0 Jul02 ?00:00:00 rpc.idmapd --- [r...@maui ~]# service rpcidmapd status rpc.idmapd (pid 2380) is running... --- On the client (F11 in my case) The default /etc/idmapd.conf should work if the nfs4 domain is the same as the DNS domain - if in doubt force them to be the same on both the server and the client The nfsnobody ownership is probably the result of the server and client domain not being the same (and/or idmapd not running on both server and client) /etc/idmapd.conf naxos ~ 1# cat /etc/idmapd.conf [General] #Verbosity = 0 # The following should be set to the local NFSv4 domain name # The default is the host's DNS domain name. #Domain = local.domain.edu Domain = jaa.org.uk ... Hope this helps John ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] x86_64 EDAC throwing error
Greetings, On Sat, Jul 4, 2009 at 12:34 PM, Kurian Thayil wrote: > Hi All, > > We have installed CentOS 5.3 x86_64 in an HP DL585 server with AMD Opteron > 64 bit processor and 16 GB RAM. The kernel version is 2.6.18-128.el5 . Now > this has thrown an error message in /var/log/message, > > Jul 3 21:41:11 db1 kernel: EDAC k8 MC0: general bus error: participating > processor(local node origin), time-out(no timeout) memory transaction > type(generic read), mem or i/o(mem access), cache level(generic) While I cant throw much light on this particular problem, I have faced some peoblem as the opeteron based DL 3x5 g5 servers require RAM to be populated evenly among the CPU sockets Just my 2p ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Getting started with NFS
On Sat, 2009-07-04 at 10:46 +0200, Niki Kovacs wrote: > > Here's what I got this time: > > Warning: rpc.idmapd appears not to be running. --- You need to start up your RPC services on the client service rpcidmapd status service rpcidmapd start and chkconfig John ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Dag's comment at linuxtag
On Fri, 3 Jul 2009, Bogdan Nicolescu wrote: BUT... when someone from the Centos team makes a statement like "...latest release has many up-to-date desktop packages..." or any other statement that might imply, suggest, hint, or even smell of breaking compatibility with RH, for whatever reason, I think a lot of users will start looking for alternatives. First of all, when I said this, I was no longer part of the CentOS team. Secondly, I didn't say that literally, but I don't object to the wording. For desktop use we do have up-to-date desktop packages. Not firefox 3.5 (wasn't released then) but a recent Network Manager, pidgin, firefox. So I wasn't lying. If that means that people will look for alternatives, that's fine. I would be lying if I said that we only had old desktop applications, wouldn't I ? CentOS already covers the server market, it doesn't need a push there. But a lot of people see CentOS as a pure server OS. Which I am trying to change by telling people how CentOS is perfect for the desktop for 99% of the people. I am leaving out the 1% of people that want to have the latest and greatest in everything, that are developers, or have religious technology preference. If Linux would have 100 million users right now, it wouldn't cover the potential 1% of the whole market if you look at a desktop-using population. Again, if your goal is to be 100% compatible with RH, then RH dictates the package version. And just in case some people are not very clear on RH's goals for the foreseeable future: "It’s worth pointing out what’s missing in the list above: we have no plans to create a traditional desktop product for the consumer market in the foreseeable future." http://press.redhat.com/2008/04/16/whats-going-on-with-red-hat-desktop-systems-an-update/ This does not mean that other/extra repositories can't and don't exist, but it should always be made crystal clear (and it has been a few days ago), that the base is never compromised. You read of course what you want to read. And Red Hat is right, they do not target the _consumer_ market. Which is fair. There is little money to be made in the consumer market (not if you don't have a lot of money/effort going to support etc...) But they do target the Enterprise desktop market and therefor they do have a desktop product that works fine for what it is. And most people don't need more than that. (I certainly don't) So don't make the mistake that so many others have made, which is that Red Hat is not interested in the Desktop. They are very much interested, that is partly why they bought Qumranet, and why they spend so much money on Desktop related development in Fedora. Red Hat sees the desktop as the next step in revenue, but not in the consumer market. They see it in the enterprise market. That's crystal clear for me. -- -- dag wieers, d...@wieers.com, http://dag.wieers.com/ -- [Any errors in spelling, tact or fact are transmission errors]___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Dag's comment at linuxtag
On Fri, 3 Jul 2009, Bogdan Nicolescu wrote: >> On Fri, 3 Jul 2009, Bogdan Nicolescu wrote: >> >>> BUT... when someone from the Centos team makes a statement >>> like "...latest release has many up-to-date desktop >>> packages..." >> >> ummm -- it is of course true that changes happen; rebasings do >> as well; and the CentOS project [and the upstream] document >> these matters in release notes as to the up-to-date changes >> done. Upstream decided on most of them, or we made a minimal >> delta to get the packageset to stabilize. So what? The >> project cannot cater to people who won't read nor pay >> attention. > > Russ, this was about a comment about "up-to-date desktop packages", not > a comment about "up-to-date changes". Just because the release notes > contains "up-to-date changes", it doesn't necessarily mean that the > "up-to-date xxx package" is installed. But maybe I wrong, please point > to one current "up-to-date package" in Centos or RH for that matter. > And by up-to-date package I don't mean a stable, but un-supported > package (ie PHP) So, here's a small list of "up-to-date desktop packages" all part of CentOS 5.3 _and_ RHEL 5.4: - firefox 3.0.11 - pidgin 2.5.8 - NetworkManager 0.7.0 - thunderbird 2.0.22 And there are many more useful ones if you look at additional repositories, like the reporter clearly mentions in the quoted text. > Thank you, and all the other Centos members for clarifying this... > "Yes, CentOS is often considered a server operating system," explained > Dag, "but we are trying to change that. In fact, the latest release has > many up-to-date desktop packages and we also have an extra repository > with many application and drivers that are not officially part of Red > Hat Enterprise Linux (RHEL)." The more I read your quote, the more I think you are misreading what I say. When I said "we are trying to change that" it means we are trying to change the _perception_ that CentOS is considered a server operating system. We are not trying to change what CentOS is, we cannot because we merely take what comes from Red Hat. If that is not clear to you from everything the CentOS project did the past 4 years, then every word is wasted anyway. -- -- dag wieers, d...@wieers.com, http://dag.wieers.com/ -- [Any errors in spelling, tact or fact are transmission errors] ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Dag's comment at linuxtag
On 07/04/2009 08:07 AM, Geoff Galitz wrote: >> The project is a confluence of a sub-project under the cAos project, > > Is this still true? Is Centos still officially associated with cAos? Or > was that supposed to be in the past tense? No, CentOS has nothing to do with caos in quite a few years now - and thats not going to change. CentOS is a completely independent project. also, I completely lost interest in this thread when it went into ranting lands, guess it might be worth catching up on. -- Karanbir Singh : http://www.karan.org/ : 2522...@icq ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Multiple Internet facing Nics - Gateway issue
> Now where would the proper place be to put a route for load balancing like: > > ip route add default scope global nexthop via xx.yy.51.46 dev eth2 weight 3 > nexthop via aa.bb.166.2 dev eth3 weight 1 > > Hey Doug, Congrats! Now that we have helped you, it is your turn to help us! :-D Let us know when you get that one working! Cheers, Christopher ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Dag's comment at linuxtag
the end of this circle for me ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Dag's comment at linuxtag
On Fri, Jul 3, 2009 at 4:16 PM, Akemi Yagi wrote: > On Fri, Jul 3, 2009 at 6:39 AM, Ned Slider wrote: >> Didi wrote: >>> On Thu, Jul 2, 2009 at 7:45 PM, Akemi Yagi wrote: > http://farm3.static.flickr.com/2558/3679382429_d535f79823_o.jpg (info offered by NedSlider) >>> >>> Have a look at the time the photo was taken. The booth only opened at >>> 10 and the photo was taken before. Maybe subscribe to the promo list >>> where this was discussed. Funny that such accusations are coming out >>> of the community. >>> >>> Cheers Didi >> >> Hi Didi, >> >> I believe it was said as a joke and posted here to somewhat lighten the >> tone of this thread :) > > It was indeed my humble effort. But this thread made such a wrong > turn that jokes do not seem to work / help as intended. :-( Hey, I am sorry. I have just already received personal comments on this and I automatically assumed this was a continuation of these. And reading the threads the tone is becoming more and more insulting. I just didn't think someone would be funny. Sad in a way where the list is going. But rereading it now, I should have noticed. I assume it was just my personal bias. But nice effort :) Cheers Didi > > Oh well. > > Akemi > ___ > 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
[CentOS] modern motherboard for centos-5
I'm considering upgrading, and am trying to choose a modern motherboard that nevertheless fully works with Centos5/RHEL5. Though I'm partial to AMD processors, and would like to use one in my new configuration, that's not a requirement, if the most appropriate board happens to be intel-compatible. However, given the way ASUS is dumping LInux and crawling more firmly into bed with the Beast, I'd prefer to avoid ASUS boards. I see that NewEgg has some combo deals at reasonable prices, but I can't tell which chipsets/boards are known to work with centos5 and which aren't. Just at random, here's one of their offerings, a Biostar board: http://www.newegg.com/Product/Product.aspx?Item=N82E16813138143 I've always understood Biostar boards to be cheap, not only in price, but perhaps they're serviceable? I'm open to other suggestions, too. Thanks in advance! -- Fred Smith -- fre...@fcshome.stoneham.ma.us - The Lord detests the way of the wicked but he loves those who pursue righteousness. - Proverbs 15:9 (niv) - pgptxqq2JSORn.pgp Description: PGP signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] what would be happen if swap partition is not?
On Fri, Jul 3, 2009 at 11:11 PM, Keith Keller wrote: > On Fri, Jul 03, 2009 at 02:18:57PM -0400, Kwan Lowe wrote: > > > > If you do run without page space, you should configure the kernel > overcommit > > options. > > Is there a good, consistent, complete source of documentation for these > options? They have changed a bunch in the 2.6 kernels, and I suspect > the docs in the kernel source were not always up to date with the > available options. > I agree. Just doing a quick search and found that there's a bunch of outdated information and some that's not just outdated, but was never right in the first place. For example, take a look at page volumes versus page files... Traditionally you would use a page volume because of the overhead involved with using files. Then changes to how page files were used made the difference almost (or completely) negligible. But then fragmentation may come into play when creating page files so page volumes would still be better.. But then storage is often virtualized so it again may not matter because the backing volume itself may be fragmented, or in some cases, reside on multiple physical volumes so it didn't matter. And with new allocation routines, maybe it again doesn't matter. Here's one decent guide that explains what happens in an OOM situation: http://www.linuxdevcenter.com/pub/a/linux/2006/11/30/linux-out-of-memory.html There's also some good stuff on kerneltrap.org. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS-announce Digest, Vol 53, Issue 3
Send CentOS-announce mailing list submissions to centos-annou...@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-requ...@centos.org You can reach the person managing the list at centos-announce-ow...@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. Security Notice: Attempted Break-In onwww.centos.org (Ralph Angenendt) -- Message: 1 Date: Sat, 4 Jul 2009 03:10:01 +0200 From: Ralph Angenendt Subject: [CentOS-announce] Security Notice: Attempted Break-In on www.centos.org To: CentOS Announce Message-ID: <20090704011000.ga2...@br-online.de> Content-Type: text/plain; charset="us-ascii" Subject: Break-In attempt on www.centos.org Dear Users, on Friday evening, July 3rd (UTC) we found a few suspicious files on the CentOS webserver. Upon investigating we found out that the files had been put there through Xoops (the CMS www.centos.org runs on) - and that this was possible due to a an administrative error which has been corrected. As far as we can see there has been no data or binary injected into the system or taken from the system. The machine hasn't been used as a source for sending spam (in the widest possible meaning) either. We have been able to identify the source of the attacks, but have not been able to find out if the files have been put there through a compromised user account in the Xoops system. Although we are fairly sure that there has been no such compromise, we have enforced a password expiry on all accounts on the system. wiki.centos.org and bugs.centos.org - though being on the same machine - have not been affected by this. All users having an account on www.centos.org need to acquire a new password through the "lost password" system of Xoops. We are terribly sorry for any inconvenience this might cause you and would like to apologize for that. On behalf of the CentOS team, Ralph Angenendt -- next part -- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 197 bytes Desc: not available Url : http://lists.centos.org/pipermail/centos-announce/attachments/20090704/b369c720/attachment-0001.bin -- ___ CentOS-announce mailing list centos-annou...@centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 53, Issue 3 ** ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] modern motherboard for centos-5
fred smith wrote: > I'm considering upgrading, and am trying to choose a modern motherboard > that nevertheless fully works with Centos5/RHEL5. What role is that system going to play? I assume server because I'd put money down that in excess of 99% of CentOS installations are servers. (that number started at 95% and I kept jacking it up higher the more I thought about it..) In which case.. Supermicro has a pretty large selection of Istanbul-ready boards, you don't really mention any special requirements outside of OS compatibility so it's hard to say what board is best: http://www.supermicro.com/Istanbul/Istanbul.cfm?pg=MB Pretty much all of them should work fine with CentOS 5, of course I would avoid the on board controllers for disks, use an external controller like a 3Ware or something mainly for performance reasons. Tyan has plenty of good boards too. nate ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] x86_64 EDAC throwing error
Kurian Thayil wrote: > I understand this is an error message from Error Detection And Control > module and just wanna confirm that this is not a kernel or software related > issue. If Hardware related is it confined only to the Physical memory stick > installed or processor related? Any hint on this?? Login to the iLO/iLO2 interface and look at the system event log, all DL585s will log memory errors there, and will even tell you what memory module it is. nate ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Dag's comment at linuxtag
Karanbir Singh wrote: > also, I completely lost interest in this thread when it went into > ranting lands, guess it might be worth catching up on. > not really. :-/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] [Fwd: Re: Getting started with NFS]
On Sat, 04 Jul 2009 10:48:37 +0200 Niki Kovacs wrote: > Any idea what might go wrong here? firewall problem? Try disabling your firewall and see if it works. If it does, then here is my note about how to do make NFS work through a firewall. HOW TO SET UP A FIREWALL THAT ALLOWS NFS Create the file "/etc/sysconfig/nfs" and add the following contents: STATD_PORT=4001 LOCKD_TCPPORT=4002 LOCKD_UDPPORT=4002 MOUNTD_PORT=4003 Append the following to the file "/etc/services": rquotad 4004/tcp # rpc.rquotad tcp port rquotad 4004/udp # rpc.rquotad udp port Restart the nfs services >From there, open these ports -> 111:tcp, 111:udp, 2049:tcp, 2049:udp, 4001:tcp, 4001:udp, 4002:tcp, 4002:udp, 4003:tcp, 4003:udp, 4004:tcp, 4004:udp -- MELVILLE THEATRE ~ Melville Sask ~ http://www.melvilletheatre.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Question on security issue alert from recent centos-announce
What exactly does the announcement mean to the CentOS community? >From what point in the past to what point present/future should the user community be concerned? Once you find the final culprit, how sure will you be whether any issue is/was malicious vs benign? Do you perform regular server checksums to compare what _might_ have changed (i.e. tripwire, etc)? What is the level and mitigation of damage control - current and future? What additional specifics can we learn from you - from safe/tainted media checksum files to ISO media itself? From keeping machines up and running to needing a fresh install? Could the same thing happen, or did it, with the upstream provider, or is it limited to the CentOS community? Thank you. Scott ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Dag's comment at linuxtag
Dag Wieers wrote: On Fri, 3 Jul 2009, Bogdan Nicolescu wrote: BUT... when someone from the Centos team makes a statement like "...latest release has many up-to-date desktop packages..." or any other statement that might imply, suggest, hint, or even smell of breaking compatibility with RH, for whatever reason, I think a lot of users will start looking for alternatives. First of all, when I said this, I was no longer part of the CentOS team. Secondly, I didn't say that literally, but I don't object to the wording. For desktop use we do have up-to-date desktop packages. Not firefox 3.5 (wasn't released then) but a recent Network Manager, pidgin, firefox. So I wasn't lying. If that means that people will look for alternatives, that's fine. I would be lying if I said that we only had old desktop applications, wouldn't I ? CentOS already covers the server market, it doesn't need a push there. But a lot of people see CentOS as a pure server OS. Which I am trying to change by telling people how CentOS is perfect for the desktop for 99% of the people. I am leaving out the 1% of people that want to have the latest and greatest in everything, that are developers, or have religious technology preference. If Linux would have 100 million users right now, it wouldn't cover the potential 1% of the whole market if you look at a desktop-using population. Again, if your goal is to be 100% compatible with RH, then RH dictates the package version. And just in case some people are not very clear on RH's goals for the foreseeable future: "It’s worth pointing out what’s missing in the list above: we have no plans to create a traditional desktop product for the consumer market in the foreseeable future." http://press.redhat.com/2008/04/16/whats-going-on-with-red-hat-desktop-systems-an-update/ This does not mean that other/extra repositories can't and don't exist, but it should always be made crystal clear (and it has been a few days ago), that the base is never compromised. You read of course what you want to read. And Red Hat is right, they do not target the _consumer_ market. Which is fair. There is little money to be made in the consumer market (not if you don't have a lot of money/effort going to support etc...) But they do target the Enterprise desktop market and therefor they do have a desktop product that works fine for what it is. And most people don't need more than that. (I certainly don't) So don't make the mistake that so many others have made, which is that Red Hat is not interested in the Desktop. They are very much interested, that is partly why they bought Qumranet, and why they spend so much money on Desktop related development in Fedora. Red Hat sees the desktop as the next step in revenue, but not in the consumer market. They see it in the enterprise market. That's crystal clear for me. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos Just for the record: I use CentOS due to the pedigree of the source RPMs, the fact that it will be supported for many years with patches AND that it works fine as a desktop / work station and even laptop OS. I run five servers, two laptops and two workstations all with CentOS (use plus for the non servers). I play videos, and music as well as perform all my business functions reliably month after month. Keep up the great work. I use all the CentOS repos, rpmforge and EPEL plus one or two others for very specific needs. If the additional repos break CentOS I back out and look elsewhere. Sure it takes some time and tender loving care to get it all working but the important thing is IT DOES! - RELIABLY month after month. I once upon a time I used others and got so tired of having to do rebuilds of my machine every year or so to stay supported. Life is too short - I like to use hardware for four+ years and want the OS to match. Thanks team - this user sure appreciates your efforts and I am trying to come up to speed so I can be of more help to the project. Do not let those that rant and rave and get nasty put you off. We recognize the time and effort it takes to make good stuff happen. Appreciated - Rob begin:vcard fn:Rob Kampen n:Kampen;Rob email;internet:rkam...@kampensonline.com tel;work:407-896-9556 x6344 tel;fax:407-896-7607 tel;home:407-876-4854 tel;cell:407-341-3815 version:2.1 end:vcard ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] [Fwd: Re: Getting started with NFS]
Niki Kovacs wrote: Subject: Re: [CentOS] Getting started with NFS From: Niki Kovacs Date: Sat, 04 Jul 2009 10:33:31 +0200 To: Frank Cox To: Frank Cox Frank Cox a écrit : There isn't much to setting up a simple NFS fileserver and client mount. Set up /etc/exports on the server (this assumes your client is 192.168.0.3) /whatever/where-ever/ 192.168.0.3(rw) Start the nfs service. Create a mount point on the client "mkdir /mnt/fileserver" then mount the fileserver there. "mount fileserver:/whatever/where-ever/ /mnt/fileserver" That's about exactly what I did. I setup the NFS server on machine 'raymonde' (192.168.1.4) on my local network. Then when I do this from another machine: [r...@lifebook ~]# mount raymonde:/data /home/shares Nothing happens for about a minute or so, and then I get the following error: mount.nfs: Input/output error Which leaves me clueless. Any idea what might go wrong here? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos Niki, nfs v2 and v3 are fairly simple, however I have not yet managed v4 as it seem to need kerberos and individual user authentication rather than machine authentication as do v2 & v3. If you use a firewall on your server, you will need to set up permanent ports for the various services that nfs uses. check out /etc/sysconfig/nfs rpcinfo -p will show you what is running and what version and ports - very useful!! HTH Rob begin:vcard fn:Rob Kampen n:Kampen;Rob email;internet:rkam...@kampensonline.com tel;work:407-896-9556 x6344 tel;fax:407-896-7607 tel;home:407-876-4854 tel;cell:407-341-3815 version:2.1 end:vcard ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] [Fwd: Re: Getting started with NFS]
Thanks everybody for the detailed hints and answers, on the list as well as offlist. I got myself a second "sandbox" PC today, and I just installed two vanilla CentOS 5.3 systems on them. It'll be much easier to figure out the innards of NFS without the constantly nagging fear of breaking something on my production PCs. I'll eventually keep posting follow-ups to my investigations. cheers, Niki ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] [Fwd: Re: Getting started with NFS]
On Sat, Jul 4, 2009 at 9:47 PM, Niki Kovacs wrote: > Thanks everybody for the detailed hints and answers, on the list as well > as offlist. > > I got myself a second "sandbox" PC today, and I just installed two > vanilla CentOS 5.3 systems on them. It'll be much easier to figure out > the innards of NFS without the constantly nagging fear of breaking > something on my production PCs. I'll eventually keep posting follow-ups > to my investigations. > > cheers, > > Niki > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > This is a circumstance where virtualization would help. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] modern motherboard for centos-5
On Sat, Jul 04, 2009 at 10:18:56AM -0700, nate wrote: > fred smith wrote: > > I'm considering upgrading, and am trying to choose a modern motherboard > > that nevertheless fully works with Centos5/RHEL5. > > What role is that system going to play? > > I assume server because I'd put money down that in excess of > 99% of CentOS installations are servers. (that number > started at 95% and I kept jacking it up higher the more > I thought about it..) Sorry, I didn't think to specify. It's my personal playground/home computer/ mail server. So in the sense that it hosts the mail server for my personal domain, then yes, it's a server. But in every other sense it's "just" my personal computer. One board at Newegg that is inexpensive yet from the reviews looks like a good one is http://www.newegg.com/Product/Product.aspx?Item=N82E16813128392. I've been running on a Gigabyte board for the last 5 (or so--can't recall exactly) years and it has always "just worked", so I wouldn't mind another. But what I don't know how to tell is if chipsets have Linux support (in my preferred OS, not the latest unreleased Fedora Rawhide, or next year's still pre-alpha Ubuntu), or even with chipset support does the darn thing work or not? -- Fred Smith -- fre...@fcshome.stoneham.ma.us Do you not know? Have you not heard? The LORD is the everlasting God, the Creator of the ends of the earth. He will not grow tired or weary, and his understanding no one can fathom. - Isaiah 40:28 (niv) - pgp9WrNZXGPIZ.pgp Description: PGP signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Question on security issue alert from recent centos-announce
Scott Ehrlich wrote: > What exactly does the announcement mean to the CentOS community? This is not an easy answer. > From what point in the past to what point present/future should the > user community be concerned? This happened currently. And as far as we can say now it only concerned our CMS (xoops in this case). And even there we are fairly sure that nothing has happened - resetting all passwords was a measure to make sure that *if* we had a compromised account, the attacker wouldn't be able to use the same password. > Once you find the final culprit, how sure will you be whether any > issue is/was malicious vs benign? I do not understand that question. > Do you perform regular server checksums to compare what _might_ have > changed (i.e. tripwire, etc)? There are measures in place to provide at least a certain level of security - which is hard in case of a CMS where other people have logins. > What is the level and mitigation of damage control - current and > future? What are you trying to get at? This issue *only* concerned our web server. None of the machines actually "doing" the distribution are even reachable by that machine. > What additional specifics can we learn from you - from safe/tainted > media checksum files to ISO media itself? From keeping machines up > and running to needing a fresh install? As said before: None of the machines which are used for composing the distribution are touched by this issue. These machines are not reachable by the outside - and you always have signed packages. > Could the same thing happen, or did it, with the upstream provider, or > is it limited to the CentOS community? We don't know. But as upstream does not use xoops, they probably did not have that issue. Both sites being down was a coincidence. The only machine which had a problem was the web server. And even there we are fairly sure by now that the machine was not misused. Ralph pgpeqUXJQCKXK.pgp Description: PGP signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] software raid1 syncing
> > > > I have a setup that is raid 1 and put the mirrored drive > back in and now it is still showing as degraded saying: > raid1: raid set md6 active with 1 out of 2 mirrors with this > message on all the raids.i know i am wrong by saying this but > i thought putting in the driving and rebooting would start > the re syncing itself. what do i have to do to add this back > in, i am so confused with this process. > > > > centos 4.x Here is what I did..cent 5.x, but linux commands shoulf work http://www.bobhoffman.com/wordpress/?page_id=44 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Question on security issue alert from recent centos-announce
On Sat, Jul 4, 2009 at 7:55 PM, Ralph Angenendt wrote: > Scott Ehrlich wrote: > >> What is the level and mitigation of damage control - current and >> future? > > What are you trying to get at? This issue *only* concerned our web > server. None of the machines actually "doing" the distribution are even > reachable by that machine. That is what I needed to know. I re-read the announcement, and the extent of reported damage wasn't convincingly clear to me that all was well. Your response above has validated and confirmed the data of concern (the distro files) are ok (unless we learn otherwise). All is well. Thank you. Scott ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
