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limit users to use resource
by ann kok 22 Aug '07

22 Aug '07

Hi all Can centos have way to limit users to use resouce in the computer? thank you ____________________________________________________________________________________ Be a better Heartthrob. Get better relationship answers from someone who knows. Yahoo! Answers - Check it out. http://answers.yahoo.com/dir/?link=list&sid=396545433

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CentOS v4.5 and Intel 965/G33BY chipsets - PATA support
by Paul Griffith 22 Aug '07

22 Aug '07

Greetings CentOS users, I have run into a hardware issue with the Intel 965 chipset. It appears that the latest kernel doesn't support the Marvell PATA controller. I can kickstart the computer, but after the OS is installed the DVD drive can't be accessed. There are patches against 2.6.18 for the Marvell PATA controller here: http://lkml.org/lkml/2006/10/16/157 There is bug report ported for RHEL 5.0 and I assume this will apply to CentOS 5 also. https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=237372 What are my options other that to try to patch the current kernel (2.6.9-55.0.2.EL) ? We have a lab of 24 computer to push out before the start of the term (Sept 5/07) ... joy joy Thanks Paul

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Solved: HTTP user directory permissions - Centos 5 post-install
by Robert Moskowitz 22 Aug '07

22 Aug '07

The problem was permissions on /home/user not /home/user/public_html I have not spent the time looking into details, but I booted up the old server (fortunately I had not blown away the drive content yet), and looked at all the directory tree. The permissions for /home/user was drwx--x--x The user that I was using on the new system was the one created by the post-install, first boot process. Its permissions were: drwx------ Other users that I created with drwxx-rx-r So I changed the new system's user directory permissions to match that of the old system, and everything is working. Just one more footnote about installing a new Centos 5 system, check the user directory permissions.

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RE: [CentOS] Who does snapshots other than Network Appliance?
by Mark Schoonover 22 Aug '07

22 Aug '07

Jiann-Ming Su wrote: > On 8/22/07, Scott Ehrlich <scott(a)mit.edu> wrote: >> Having snapshot technology is great. Who else supports it? >> > > Roll your own: > > http://www.mikerubel.org/computers/rsync_snapshots/ > http://www.dirvish.org/ Hourly, daily & weekly scripts available at: http://marksitblog.blogspot.com/2006/11/linux-based-poor-mans-san_05.html Poor Thanks! Mark Schoonover *** Winner of the 2008 Best Psychic Award IS Manager, CMDBA American Geotechnical - California, Nevada and Arizona V-> 858.450.4040 F-> 714.685.3909 C-> 858.472.3816

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RE: [CentOS] SATA vs. SAS
by Bowie Bailey 22 Aug '07

22 Aug '07

Peter Arremann wrote: > > On the other hand, data reliability is another issue. We have tons of > sata based disk arrays and have had no issues yet (because our systems > are all on UPS and multiple circuits) but if you don't have > infrastructure like that, you are more likely to lose data on a sata > based system... Why do you say that SATA arrays are less reliable? I have used both SATA and SCSI raid and have had drive failures on both. Recovery from the failures seems to be more a matter of the raid implementation than the interface type. -- Bowie

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RE: [CentOS] SATA vs. SAS
by Bowie Bailey 22 Aug '07

22 Aug '07

Feizhou wrote: > > > Option 1) 2 servers each having 2.0TB raid disk with SAS > > > drives, 2GB ram and standard other features. > > > > If going down this road, why not look into getting one of > > those fancy new storage enclosures where the RAID is built > > into the enclosure and can allow 2 servers to simultaneously > > access the arrays with full battery backed write-back cache? > > > > What is available for Linux in this department? http://www.coraid.com/ These are relatively inexpensive network storage boxes using SATA drives and AoE (ATA over Ethernet) connection to the server. Drivers build easily on CentOS. Just make sure you get drives that are on their compatible list. This may not be as much of an issue now, but I had some problems with drives being marked bad and dropped out of the array when I first set up mine a couple of years ago. This was caused by firmware incompatibilities and fixed by upgrading the drive firmware. Once this was fixed, everything has worked flawlessly since. -- Bowie

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problem with poppassd
by mailadmin＠baladia.gov.kw 22 Aug '07

22 Aug '07

Dear All, I have recently installed CentOS 5 and is workin perfect i recently download n installed poppassd daemon ver 1.6a so as to let the users to change their password but when i try to change password i get the folling error 500 'BAD PASSWORD: it is based on a dictionary word' i tried googlin arround and tried to play with system-auth-ac file in /etc/pam.d but no use my system-auth-ac is as below auth required pam_env.so auth sufficient pam_unix.so nullok try_first_pass auth requisite pam_succeed_if.so uid >= 500 quiet auth required pam_deny.so account required pam_unix.so account sufficient pam_succeed_if.so uid < 500 quiet account required pam_permit.so password requisite pam_cracklib.so try_first_pass retry=3 password sufficient pam_unix.so md5 shadow nullok try_first_pass use_authtok password required pam_deny.so session optional pam_keyinit.so revoke session required pam_limits.so session [success=1 default=ignore] pam_succeed_if.so service in crond quiet use_uid session required pam_unix.so really apprecite your help regards simon -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

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Force run of quotacheck at boot
by Dogsbody 22 Aug '07

22 Aug '07

Hi All, I think I have managed to corrupt my quota files so I need to run `quotacheck` but that needs the partition to have quotas off or be unmounted which isn't ideal for a production system :-p I was trying to find a way to force the system to do a full `quotacheck -cvuga` on a reboot but on looking in rc.sysinit it seems it will only force a quotacheck on boot when fsck finds problems with the disk. Anyone know of a way to force this (touch a file etc.)? Thank you in advance Dan

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Memory: 2056396k/4194304k available
by g.bacci＠flagmail.it 22 Aug '07

22 Aug '07

I have a centos 5 server running on olidata tegeo server with 2 opteron 1800 and 8GB ram. I installed centos 32bit so I should be able to use 4GB. My system on boot recognize 4GB ram but allocate only 2GB. Extract from dmesg: Warning only 4GB will be used. Use a PAE enabled kernel. 3200MB HIGHMEM available. 896MB LOWMEM available. Memory: 2056396k/4194304k available (2043k kernel code, 39416k reserved, 846k data, 232k init, 1179584k highmem) Why it suggest me to "Use a PAE enabled kernel."? Thanks. Giuliano.

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RE: [CentOS] new CentOS 5 as DNS server
by pctech＠mybellybutton.com 22 Aug '07

22 Aug '07

Hi folks, As a breather from the "thread-now-wider-than-my-headers-window-in-thunderbird" conversation re: mixing repos, I have a question regarding a machine I'm about to put online. :) I run a web hosting company and my secondary (primary to the world) DNS box died from a massive rootkit/hack last night. It was running an old Slackware 9.1 installation and I will be completely cleaning those drives sector-by-sector. After which I'll be installing CentOS 5 on that hardware. As it will be a production server and this is my first foray into CentOS/SELinux in a production environment I was hoping to get a recommended list of what to include and, more specifically, what *not* to include from the distro CDs I will be doing a text based install, hoping to avoid the installation of X. Other than BIND and vsftpd, I don't think I need much. This machine will be pulling zone files from my primary web server and storing some archive files and backups for me. I'm dilligently R`ingTFMs, and will continue to.... I'd sure be appreciative of any jumpstart help and/or any pitfalls of which to be cognizant. ----------------------------------------------------------------- Sorry for my broken ass webmail, but I don't have access to a real mail client at the moment. Personally I would recommend against installing any service that isn't absolutely necessary. Such as FTP. On a DNS server, if that's all it is going to be, there is no need for FTP services. If you need to upload things to the server, use scp, which is a part of SSH. The install is going to add alot of services that you probably won't need on the server, such as sendmail. Shut down any service that you don't need. The fewer services running the fewer attack vectors. You will never get it "hack proof". What you will get is something that "script kiddies" may not bother with in favor of easier targets. Like the old saying goes, "You don't have to run faster than the cheetah. You just have to run faster than the man running next to you." I would also, if possible, disallow root logins to the server via SSH. Configure it so that you have to log in as a normal restricted user and then su to root. ------------------------------------------------------------------ TIA, ~Ray _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

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