Discuss September 2009

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Centos v3.3 CD 2
by Luis-Miguel Astudillo 15 Nov '11

15 Nov '11

Sorry, I have been away for a while. has anyone fixed CD2 fotr CentOS v3.3 ? -- Luis

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Lingering dhclient issue
by Alfred von Campe 22 Jun '11

22 Jun '11

I recently reconfigured some CentOS 4.3 systems that were using DHCP to use static IP addresses. At the same time, the systems were moved to a new VLAN. Here is the approximate sequence of events that took place: 1. ifdown eth0 2. edit /etc/sysconfig/network-scripts/ifcfg-eth0 with static IP address 3. wait for network folks to reconfigure switch 4. ifup eth0 I may have reversed steps 1 and 2 on some of the systems. The problem was that the dhclient process didn't go away, and kept renewing the old lease. Our DHCP server is configured to contact the DNS server and update the entry for each host it serves. So the DNS entries for these systems were pointing to the old address in the old VLAN. The eth0 interface itself just kept the static IP address for which it was configured. It took me a while to figure out what was going on. My question is, what could I have done to avoid this (other than killing the dhclient process)? Is there a better way to reconfigure an interface to use a static address? I am not interested in solutions that involve using a GUI (i.e., only command line solutions). Thanks, Alfred

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what pkg contains libstdc++-libc6.2-2.so.3
by Fong Vang 02 Feb '11

02 Feb '11

In CentOS 4.1/2, what package contains this library: libstdc++-libc6.2-2.so.3? I installed a couple of the compat- packages, but this library is still missing.

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Don't forget to use torrents for your downloads!
by William L. Maltby 23 Feb '10

23 Feb '10

For those who may forget, usin torrents to download and share the new images will get you faster downloads (if enough folks participate) if you have a "fat" pipe and alleviate the load on the CentOS servers. I have a "chubby" pipe (~ 1.2MB/sec) and got the stuff really quickly earlier today. If your torrent has distributed hash table capability, I suggest that you also use that feature. Happy sharing! -- Bill

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update of openssh-server i386 4.3p2-36.el5, dependencies
by zagiatakrapovic＠gmx.ch 21 Jan '10

21 Jan '10

thx for your help Filipe, I see the point! unfortunately I got the same for ecryptfs-utils until now no GTK stuff was needed... now even if I try your hint > yum update ecryptfs-utils I think the trousers rpm is pulling the whole stuff. Until now I didn't had to install trousers. output: --------------- Dependencies Resolved ============================================================================= Package Arch Version Repository Size ============================================================================= Updating: ecryptfs-utils i386 75-5.el5 updates 157 k Installing for dependencies: atk i386 1.12.2-1.fc6 base 222 k cairo i386 1.2.4-5.el5 base 394 k cups-libs i386 1:1.3.7-8.el5_3.6 updates 193 k fontconfig i386 2.4.1-7.el5 base 174 k freetype i386 2.2.1-21.el5_3 updates 310 k gnutls i386 1.4.1-3.el5_3.5 updates 348 k gtk2 i386 2.10.4-20.el5 base 6.5 M hicolor-icon-theme noarch 0.9-2.1 base 25 k keyutils i386 1.2-1.el5 base 36 k libX11 i386 1.0.3-9.el5 base 795 k libXau i386 1.0.1-3.1 base 18 k libXcursor i386 1.1.7-1.1 base 32 k libXdmcp i386 1.0.1-2.1 base 19 k libXext i386 1.0.1-2.1 base 35 k libXfixes i386 4.0.1-2.1 base 14 k libXft i386 2.1.10-1.1 base 44 k libXi i386 1.0.1-3.1 base 25 k libXinerama i386 1.0.1-2.1 base 9.7 k libXrandr i386 1.1.1-3.1 base 15 k libXrender i386 0.9.1-3.1 base 27 k libjpeg i386 6b-37 base 139 k libpng i386 2:1.2.10-7.1.el5_3.2 updates 241 k libtiff i386 3.8.2-7.el5_3.4 updates 306 k pango i386 1.14.9-5.el5.centos updates 335 k trousers i386 0.3.1-4.el5 base 308 k xorg-x11-filesystem noarch 7.1-2.fc6 base 5.4 k Transaction Summary ============================================================================= Install 26 Package(s) Update 1 Package(s) Remove 0 Package(s) -- GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT! Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01

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stock openjdk vs. epel
by Les Mikesell 07 Jan '10

07 Jan '10

If you have the epel repo installed and enabled during a yum update, you get java-1.6.0-openjdk-1.6.0.0-1.0.b12.el5.2 instead of the stock .b09 version. Is this intentional and desirable? I thought epel generally did not replace stock components with newer versions. -- Les Mikesell lesmikesell(a)gmail.com

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problem installing CentOS 5.3
by Buz Davis 04 Nov '09

04 Nov '09

First, let me apologize to Akemi Yagi for my delay in answering his last query. After failing with 4.8 I realized that I had at least one and possibly two computers capable of handling 5.3 (one was newly purchased second-hand and had many unknowns about it. The other was well documented but its power was obscured by a thick layer of Windows XP). To answer Akemi's last questions, yes, I am sure that the disks were all 4.8. I checked with md5sum before burning the cds and am not sure how to check further than that. I never got past using the first (modified) disk that I downloaded from the url you gave me, because anaconda failed to find a file - having to do with GNOME, so the process aborted. Again I apologize for delaying my response, but I have been occupied again with 5.3, but on the newer computers. 5.3 installed easily and correctly on the first machine (celeron, 1.2Ghz, 512M ram, 80G disk). With the second machine I am getting consistent failure to load X, despite many attempts that appeared to be good installs. For the last attempt I had about 160G of disk available, over 800M of ran, and (as reported by the BIOS, a pentium 3 processor. Unfortunately a remaining big unknown for that system is the Mhz rating for the processor. When I got it, with a broken XP system on it, it was set at 550Mhz. The BIOS allows three choices: 366, 500, and 7xx (I don't remember the last value precisely, but the system wont boot at all, so it's moot). I have mainly messed with the 550 setting, but have occasionally tried at 360. It doesn't seem to make a difference. On that system the output of uname -a gives 2.6.18-128.3l5 for the kernel, and "i686 i686 i386" at the end. Free shows 905240 total and 231688 used. Console mouse services work. When I attempt to load X I get the hollow-x cursor, then the black screen with the nautilus window and then white bars at top and bottom, along with an arrow cursor. The white bars get populated with some icons and then comes the blue screen with the doily-like design, but at that point the system appears to be hung. The computer, home, and trash icons do not appear on the desktop, nor does a mouse-pointer, and wiggling the mouse does nothing. I have compared the /var/log/Xorg.0.log files from the two machines (one that works, one that doesn't), and they both end in the same place: <snip> (--) <default pointer>: PnP-detected protocol: "ExplorerPS/2" (II) <default pointer>: ps2EnableDataReporting: succeeded <eof> I would appreciate any help in getting X to work on this second computer Thanks, Buz Davis

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relatime in plus kernel
by Yuji Tsuchimoto 01 Nov '09

01 Nov '09

Dear CentOS lovers, Is someone interested in the linux-2.6-smarter-relatime.patch for centosplus kernel? This patch solves disk I/O performance dramatically on servers, And recent distributions (fedora9 and later, etc.) and official kernel applies it. RHEL6 may include it, but RHEL5 is not. How about the linux-2.6-smarter-relatime.patch? Best Regards, Yuji

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using CentOS as an iSCSI server?
by Rudi Ahlers 21 Oct '09

21 Oct '09

Has anyone succesfully setup, and used CentOS as an iSCSI server? I'm trying to setup a server with 4x500GB HDD's, setup in RAID 10 to act as an iSCSI server for a virtualization project, but I can't find a decent howto on how to setup an iSCSI server using CentOS. I would like to setup something like Openfiler, but we also need todo some other stuff that OpenFiler doesn't support, so I would prefer to export some of the HDD space (about 500GB) as iSCSI LUN's -- Kind Regards Rudi Ahlers CEO, SoftDux Hosting Web: http://www.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532

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Re: [CentOS] using Linux as a NAS / SAN device
by J.Witvliet＠MINDEF.NL 20 Oct '09

20 Oct '09

Hi, -----Original Message----- From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf Of Robert Heller Sent: Friday, August 28, 2009 12:23 AM To: CentOS mailing list Cc: CentOS mailing list Subject: Re: [CentOS] using Linux as a NAS / SAN device At Fri, 28 Aug 2009 00:12:27 +0200 CentOS mailing list <centos(a)centos.org> wrote: > > Hi, > > I'm looking at using Linux as a NAS / SAN device, and would like some > input from other's who have done this before? > > How would it compare to commercial SAN devices, Thecus N8800SAS > (http://www.thecus.com/products_over.php?cid=11&pid=177&set_language=e > nglish) > or something similar to these? > > I would probably use hardware RAID 10, and could go with either SAS / > SATA, and then probably offer iSCSI, Samba. NFS & rsync. > In terms of servers hardware, well either Tyan / SuperMicro / Intel / > Dell would be fine as well. But, my question is rather from a linux > point of view, how would Linux compare to dedicated NAS devices, in > terms of the OS managing the device? I think many dedicated NAS devices, are in fact Linux machines, using an embedded Linux system. -- Just a word of caution. I had a simarly question: building one self, or buyding dedicated hw. Looked through several specs of different boxes, and decided for an ICY-box, that can hold two sata-disks, raid0/raid1/jbod, has an GB-ethernet interface and capable of doing NFS. (which is actually an Linux-box) However, the box is as slow as a proverbial civil-servant, although the link is realy set to GB, it just might as well have been 100MB. And even that its not capable of filling to the max. (60Mb) Found out (afterwards ;-) on the relevant product mailing lists that it's the max the box can do. hans ______________________________________________________________________ Dit bericht kan informatie bevatten die niet voor u is bestemd. Indien u niet de geadresseerde bent of dit bericht abusievelijk aan u is toegezonden, wordt u verzocht dat aan de afzender te melden en het bericht te verwijderen. De Staat aanvaardt geen aansprakelijkheid voor schade, van welke aard ook, die verband houdt met risico's verbonden aan het elektronisch verzenden van berichten. This message may contain information that is not intended for you. If you are not the addressee or if this message was sent to you by mistake, you are requested to inform the sender and delete the message. The State accepts no liability for damage of any kind resulting from the risks inherent in the electronic transmission of messages.

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Discuss September 2009