Discuss May 2007

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345 participants
442 discussions

CentOS 5 for AlphaServers?
by Rob 03 May '07

03 May '07

Hi, I use previous 4.4 version on my two Compaq AlphaServer systems. Is there a chance that CentOS 5 will also become available for Alpha? Thanks, Rob. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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More CentOS5 nVidia fun
by Bart Schaefer 03 May '07

03 May '07

In the vein of the "Can't get resolution higher than 1280x1024" and "Another CentOS 5 oddity..." threads, I just installed CentOS5 w/Xen kernel on a Sony VAIO desktop with an nVidia NV5M64 (RIVA TNT2 64 Pro) card, using an old Samsung SyncMaster 700NF monitor. system-config-display chose the highest possible resolution for the monitor and Xorg did its best to drive it, but it just isn't quite right: rhgb merely made a mess, which only sort of clears up when gdm starts. After I log in, only bits and pieces of menus and windows are painted. Rebooting single user I re-ran system-config-display and it claimed to have written 1280x1024 into xorg.conf, but in fact it didn't: it omitted the "Screen" section entirely. Rhgb was still messed up, gdm still seemed to be at some very high resolution, and then after logging in I found myself at 800x600 with no option to set the resolution higher. Three passes of switch-to-text-console-and-run system-config-display (including manually selecting my monitor) later, I finally have everything working, but only at 1024x768. If I choose any higher resolution, the repainting issues return. I won't really need the GUI very often after I get other things set up, so I'm not particularly worried about this, but I thought I'd report it for benefit of anyone else who might encounter a problem with a similar video card. I'd be interested to hear further thoughts on whether this could be a kernel issue, as suggested by Preston Crawford. (I have installed all the updates, for what that's worth).

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minimum needed for x11 forwarding
by dnk 03 May '07

03 May '07

Hi there - I did a minimal install of centos 5. I did not want to run a desktop on the machine, however did want to be able to forward various GUI apps through X11/ssh to a local machine. What is the minimum needed on the server for this to work? Regards, DK

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CentOS-announce Digest, Vol 27, Issue 2
by centos-announce-request＠centos.org 03 May '07

03 May '07

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-2007:0322 Important CentOS 3 i386 xscreensaver - security update (Tru Huynh) 2. CESA-2007:0322 Important CentOS 3 x86_64 xscreensaver - security update (Tru Huynh) 3. CESA-2007:0322 Important CentOS 3 ia64 xscreensaver - security update (Pasi Pirhonen) 4. CESA-2007:0322 Important CentOS 4 ia64 xscreensaver - security update (Pasi Pirhonen) 5. CESA-2007:0322 Important CentOS 4 ia64 xscreensaver - security update (Pasi Pirhonen) 6. CESA-2007:0322 Important CentOS 3 s390(x) xscreensaver - security update (Pasi Pirhonen) ---------------------------------------------------------------------- Message: 1 Date: Wed, 2 May 2007 18:47:42 +0200 From: Tru Huynh <tru(a)centos.org> Subject: [CentOS-announce] CESA-2007:0322 Important CentOS 3 i386 xscreensaver - security update To: centos-announce(a)centos.org Message-ID: <20070502164742.GA27972(a)sillage.bis.pasteur.fr> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory CESA-2007:0322 xscreensaver security update for CentOS 3 i386: https://rhn.redhat.com/errata/RHSA-2007-0322.html The following updated file has been uploaded and is currently syncing to the mirrors: i386: updates/i386/RPMS/xscreensaver-4.10-21.el3.i386.rpm source: updates/SRPMS/xscreensaver-4.10-21.el3.src.rpm You may update your CentOS-3 i386 installations by running the command: yum update xscreensaver Tru -- Tru Huynh (CentOS-3 i386/x86_64 Package Maintenance) http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBEFA581B

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[CentOS] Good things about CentOS 5; problem with flash in seamonkey
by Mark Hull-Richter 03 May '07

03 May '07

I'd like to point out that overall I am quite pleased with CentOS 5, although I am having more fun with it than I did with 4.4 and I knew less about CentOS then (duh). Most things seem to work fine, including a relatively smooth installation from the DVD image I downloaded, although the number of screensavers I can see (and this could be related to the ATI/dual head problem) is pathetically low - there are only 5 or six. Phleagh. I had no trouble reinstalling the border theme I had before, and although I don't particularly like the new main menu construction, it makes sense enough to be not too unworthwhile. I'm curious about how the suspend function works, how to reactivate (nothing seemed to work) and, most importantly, how to get it OFF the main menu. Anyway, I reinstalled Seamonkey 1.1.1, and it landed flawlessly, although I had to look to find the x86_64 version. It came without any plugins, as usual, but I have tried reinstalling the flash player plugin, and it just won't work, not even with nspluginwrapper installed. Is there some trick to this that I need to know (and what?)? Thanks. -- Mark Hull-Richter, Linux Kernel Engineer DATAllegro (www.datallegro.com) 85 Enterprise, Second Floor, Aliso Viejo, CA 92656 949-680-3082 - Office 949-330-7691 - fax Ask me about CentOS Linux, and escape from Windows forever!

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Installing from working Linux partition
by Kenneth Porter 03 May '07

03 May '07

I've got some servers running other flavors of Linux (eg. FC2) and I'm wondering if I can install CentOS5 to a new empty partition (eg. on a new drive) while running under the old OS? It seems like the installer OS just needs some hardware sniffing ability and the ability to read the installation media and write to the target media, so in principle one should be able to install from a working system to the new partition and then update one's existing GRUB config. Is this doable or perhaps even commonly done?

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Virtual Machine Manager DNS resolver
by Jordi Espasa Clofent 03 May '07

03 May '07

Hi all, I'm trying to install CentOS 5 as a domU in a CentOS5 dom0 system and I use Virtual Machine Manager to do it. I've dumped all CentOS5 CDs contents in /var/www/CentOS to make a local http media source. It works fine in dom0 browser. When I arrive in "Locating installation media[*]" step I point out to http://localhost/CentOS (which is perfectly active and available) resource, but the application always responds the same: Error, HTTP resource not available. I've also tried with http://127.0.0.1/CentOS but I get the same error message. ¿?¿? [*] I follow the http://www.centos.org/docs//5/html/Virtualization-en-US/virt-install-wizard… documantation. -- Thanks, Jordi Espasa Clofent

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Running SELinux necessary for the average user?
by Preston Crawford 03 May '07

03 May '07

I'm wondering because it seems to be slowing my machine down considerably under CentOS 5. Especially the daemon they include to monitor SELinux and the program that attaches to it. I tried opening this earlier and it just sat there spinning. I want the knowledge that my machine is secure and safe. But I'm wondering if the price is worth it. Is it necessary for my machine to be fairly secure? Preston

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Re: [CentOS] Running SELinux necessary for the average user?
by Les Bell 03 May '07

03 May '07

"Preston Crawford" <me(a)prestoncrawford.com> wrote: >> Is it necessary for my machine to be fairly secure? << No, as long as you take all the usual precautions: * Removing - or at least not running - unnecessary services * Keeping the system patched up-to-date (easy with yum, etc.) * Choosing strong passwords - or not using passwords for login across the Internet at all; generate an OpenSSH RSA 1024-bit key and use that instead * Never use protocols that transmit passwords in plaintext across the Internet (telnet, POP/IMAP without SSL, etc.) * Never logging in as root, but only using su to become root when necessary, for as short a time as necessary * Adding some firewall rules to (e.g.) rate-limit SSH connections to block brute-force password-guessing attacks * Use Postfix rather than Sendmail (though Sendmail has stood the test of time. by now) These are the major "good practices" required, though some people will doubtless suggest others (and probably quibble with some of the above ;) ). There have been Linux servers and workstations sitting on the Internet for many years without SELinux support, demonstrating it's not necessary. SELinux is a Thing of Beauty and a Joy Forever; I've used it myself for specialised situations, but people can - and do - run securely for years without it. Best, --- Les Bell, RHCE, CISSP [http://www.lesbell.com.au] Tel: +61 2 9451 1144 FreeWorldDialup: 800909

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Fwd: [CentOS] Installed CentOS 5 today, question about an error I'm getting
by Bart Schaefer 03 May '07

03 May '07

Apparently some of Gmail's SMTP servers are on the multihop DNSBL. ---------- Forwarded message ---------- From: Bart Schaefer <barton.schaefer(a)gmail.com> Date: May 2, 2007 8:04 PM Subject: Re: [CentOS] Installed CentOS 5 today, question about an error I'm getting To: CentOS mailing list <centos(a)centos.org> On 5/1/07, John Summerfield <debian(a)herakles.homelinux.org> wrote: > Preston Crawford wrote: > > > > So I did a fresh install today. Decided to go ahead and upgrade. > > Everything seems okay save for three problems. > > > > #1 - I get a message during boot saying that an Intel microcode update > > didn't work. Something about not being able to find /proc/microcode. > > What's your CPU? If it's not Intel, it's probably irrelevant. I'm having this same error, using the Xen kernel on a Sony VAIO desktop. processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 0 model name : Intel(R) Pentium(R) 4 CPU 1500MHz The error is coming from /etc/rc.d/init.d/microcode_ctl but you can reproduce it by running "/sbin/modprobe microcode" from the shell.

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Discuss May 2007