Discuss August 2010

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250 participants
191 discussions

CentOS or other Linux Internet Router/Gateway
by Ron Blizzard 02 Sep '10

02 Sep '10

Hi Everyone, I've got kids who are growing older and I want to build a Linux box to filter Internet access. I've got six computers on the Internet, plus the laptops -- most run Windows. I'm not sure if it's called a router or gateway or...? I don't mind doing the leg work, I just don't know where to start. I'm pretty sure I'm *not* looking for a web server (though it might be fun to have a local web) -- I might also use the computer for a file server, but I mostly want a... proxy server? Not sure what tool I need to use. I seem to remember there were specialty Linux distributions for this purpose. Once I do figure out what kind of box I'm building, would I still be able to put my Linksys router behind it, or would the Linux box *be* the router? -- and would I have to get a wireless switch instead? Would a Pentium III handle this duty, or would it gum up the works and make the Internet too slow? Sorry for stupid questions. At some point I'm going to have to learn about Linux servers. I'm hoping this project will help me get started on that. Thanks for any pointers. -- RonB -- Using CentOS 5.5

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PAM_shield locking me out?
by Rob Kampen 01 Sep '10

01 Sep '10

Yesterday I installed pam_shield and followed the testing suggested and thought all was well. today I find that I cannot get to my email account, I can login via ssh okay (uses keys) but su and sudo give segmentation faults. I am guessing due to the pam module causing a problem. As I cannot do remote login as root and sudo and su use pam I appear to have locked myself out. Any words of wisdom from those a little more knowledgeable? Why do I keep trying new things - I like to improve my system and harden it against constant script kiddies (many different triers per day), but despite reading all the instructions I fall into a hole I cannot climb out of. Hopefully someone has an idea BTW - the console also fails to allow login TIA Rob

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Automatically detecting LUNs without a reboot
by Gabriel Tabares 01 Sep '10

01 Sep '10

Hi everybody. I have an HP StorageWorks array connected to one of my servers, connected via an LSI controller (lspci reports: SCSI storage controller: LSI Logic / Symbios Logic SAS1068E PCI-Express Fusion-MPT SAS (rev 08)) on an HP DL385 running CentOS 5.5 x86_64. I have set up multipath and all is working but, when I create a snaphost and export it as a new LUN from the HP web interface, it does not appear as a new disk. If I reboot, I get the LUN to appear as a new SCSI device (sd[a-z]). Is there any way I can force automatic detection? One of the reasons to use snapshots is to be able to back up the system without downtime, so not being able to detect the LUNs makes the whole set up a bit pointless. I have tried kudzu, the rescan-scsi-bus.sh script and everything else I have found online, with no luck. The LSI tools only seem to be available for i386, and I would like to avoid adding the 32bit environment, if I can. Any help would be greatly appreciated. Thanks, Gabriel Tabares

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Centos 5.5, not booting latest kernel but older one instead
by fred smith 31 Aug '10

31 Aug '10

I've been going along not noticing things happening right under my nose. so imagine my surprise when I discovered last night that my Centos 5 box has installed multiple new kernels over the last few months, as updates come out, and IT IS NOT BOOTING THE NEWST ONE. grub.conf says to boot kernel 0, and 0 is the newest one. but the one it actually boots is 6 or 8 down the list (clearly I've not been keeping things cleaned up, either). Below is some info that shows the problem. Can anyone here provide helpful suggestions on (1) why it is doing this, and more importantly (2) how I can make it stop? Thanks! uname reports: 2.6.18-164.15.1.el5PAE #1 SMP Wed Mar 17 12:14:29 EDT 2010 i686 athlon i386 GNU/Linux while /etc/grub.conf contains: # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You have a /boot partition. This means that # all kernel and initrd paths are relative to /boot/, eg. # root (hd0,0) # kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00 # initrd /initrd-version.img #boot=/dev/md0 default=0 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title CentOS (2.6.18-194.11.1.el5PAE) root (hd0,0) kernel /vmlinuz-2.6.18-194.11.1.el5PAE ro root=/dev/VolGroup00/LogVol00 rhgb quiet crashkernel=128M@16M initrd /initrd-2.6.18-194.11.1.el5PAE.img title CentOS (2.6.18-194.11.1.el5) root (hd0,0) kernel /vmlinuz-2.6.18-194.11.1.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet crashkernel=128M@16M initrd /initrd-2.6.18-194.11.1.el5.img title CentOS (2.6.18-194.8.1.el5PAE) root (hd0,0) kernel /vmlinuz-2.6.18-194.8.1.el5PAE ro root=/dev/VolGroup00/LogVol00 rhgb quiet crashkernel=128M@16M initrd /initrd-2.6.18-194.8.1.el5PAE.img title CentOS (2.6.18-194.8.1.el5) root (hd0,0) kernel /vmlinuz-2.6.18-194.8.1.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet crashkernel=128M@16M initrd /initrd-2.6.18-194.8.1.el5.img title CentOS (2.6.18-194.3.1.el5PAE) root (hd0,0) kernel /vmlinuz-2.6.18-194.3.1.el5PAE ro root=/dev/VolGroup00/LogVol00 rhgb quiet crashkernel=128M@16M initrd /initrd-2.6.18-194.3.1.el5PAE.img title CentOS (2.6.18-194.3.1.el5) root (hd0,0) kernel /vmlinuz-2.6.18-194.3.1.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet crashkernel=128M@16M initrd /initrd-2.6.18-194.3.1.el5.img title CentOS (2.6.18-164.15.1.el5) root (hd0,0) kernel /vmlinuz-2.6.18-164.15.1.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet crashkernel=128M@16M initrd /initrd-2.6.18-164.15.1.el5.img title CentOS (2.6.18-164.15.1.el5PAE) root (hd0,0) kernel /vmlinuz-2.6.18-164.15.1.el5PAE ro root=/dev/VolGroup00/LogVol00 rhgb quiet crashkernel=128M@16M initrd /initrd-2.6.18-164.15.1.el5PAE.img title CentOS (2.6.18-164.11.1.el5PAE) root (hd0,0) kernel /vmlinuz-2.6.18-164.11.1.el5PAE ro root=/dev/VolGroup00/LogVol00 rhgb quiet crashkernel=128M@16M initrd /initrd-2.6.18-164.11.1.el5PAE.img title CentOS (2.6.18-164.11.1.el5) root (hd0,0) kernel /vmlinuz-2.6.18-164.11.1.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet crashkernel=128M@16M initrd /initrd-2.6.18-164.11.1.el5.img -- ---- 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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GFS/GFS2 on CentOS
by Boris Epstein 31 Aug '10

31 Aug '10

Hi all, If you have had experience hosting GFS/GFS2 on CentOS machines could you share you general impression on it? Was it realiable? Fast? Any issues or concerns? Also, how feasible is it to start it on just one machine and then grow it out if necessary? Thanks. Boris.

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Re: [CentOS] [CentOS-announce] CESA-2010:0659 Moderate CentOS 5 i386 httpd Update
by Gilbert Sebenste 31 Aug '10

31 Aug '10

On Tue, 31 Aug 2010, Tru Huynh wrote: > CentOS Errata and Security Advisory 2010:0659 Moderate > > Upstream details at : https://rhn.redhat.com/errata/RHSA-2010-0659.html Hi Tru, Thank you so much for doing these updates, I really appreciate them! How is Karanbir doing? I hope he gets back in the saddle soon so that you don't have to do all the work for all 3 versions. :-) Again, thanks to you and Karanbir and the entire CentOS team again for all your hard work!!! Gilbert ******************************************************************************* Gilbert Sebenste ******** (My opinions only!) ****** *******************************************************************************

1 0

korganizer missing alarms
by ken 31 Aug '10

31 Aug '10

Korganizer has been working fine for years for me. But just recently it's started missing alarms... I mean I set an alarm for an event but the window for it is never popped. I googled around and found that other were having this problem back in 2007 and 2005, but there's no mention of it in recent months. Anyone else experiencing this or know what the source of the problem is? tnx -- Find research and analysis on US healthcare, health insurance, and health policy at: <http://healthpolicydaily.blogspot.com/>

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problem about editing keypad
by kongfanping 31 Aug '10

31 Aug '10

Hi, guys The keypad, i.e. the arrow keys, page up, page down, home, end and so on, does not work, which is very annoying. My system is CentOS 5.5. Is there any one who can help? Thank you very much! regards, fanping

1 0

e2fsck with millions of files
by Sean Carolan 31 Aug '10

31 Aug '10

I have a large (1.5TB) partition with millions of files on it. e2fsck has been running nearly 12 hours and is still on "Checking directory structure". Any tips for speeding this along?

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Re: [CentOS] e2fsck with millions of files
by Sean Carolan 31 Aug '10

31 Aug '10

On Tue, Aug 31, 2010 at 8:49 AM, Brent L. Bates <blbates(a)vigyan.com> wrote: > Use the XFS file system and never have to worry about fsck again. You'll > have a fast, more reliable, and more robust file system with over a decade and > exabytes of use under its belt that you will never have to wait for fsck > again. When this server gets rebuilt this is probably the path we will take. Thanks for the tip.

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Discuss August 2010