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Automount, External USB disk and e2fsck
by Robert Heller 23 Nov '10

23 Nov '10

Does Automount/autofs automagically run e2fsck? If so, how does one disable this? We have an external USB connected 2TB hard drive setup to automount. Sometimes e2fsck gets fired up, I think from Automount. I have this line in the automount config: /backupdisk -fstype=ext3,nocheck :LABEL=BACKUP I believe this should prevent Automount from running e2fsck, but it still runs it. (We have a cron job that daily does a e2fsck -p on this disk at a 'quiet' time.) -- Robert Heller -- 978-544-6933 / heller(a)deepsoft.com Deepwoods Software -- http://www.deepsoft.com/ () ascii ribbon campaign -- against html e-mail /\ www.asciiribbon.org -- against proprietary attachments

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200 line kernel patch to improve performance
by Jerry Geis 23 Nov '10

23 Nov '10

There was an article about a kernel patch to improve performance. www.webupd8.org/2010/11/alternative-to-200-lines-kernel-patch.html it involves adding this to ~/.bashrc | if [ "$PS1" ] ; then mkdir -m 0700 /sys/fs/cgroup/cpu/user/$$ echo $$ > /sys/fs/cgroup/cpu/user/$$/tasks fi and this as root: ||mount -t cgroup cgroup /sys/fs/cgroup/cpu -o cpu mkdir -m 0777 /sys/fs/cgroup/cpu/user| My machine Centos 5.5 does not have a /sys/fs/cgroup Is there anything else to do instead? Jerry

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redirecting time output
by Rainer Traut 23 Nov '10

23 Nov '10

Hi, am trying to pipe output from time command and output from a shell script to the mail program. So far it's not working as expected... # time echo "test" 2>&1 | mail -s "timetest" my(a)mail.com real 0m0.126s user 0m0.000s sys 0m0.000s The time command writes to stderror, but here the redirection seems to apply to the echo command? Thx Rainer

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Fail Transfer of Large Files
by Michael D. Berger 23 Nov '10

23 Nov '10

On my intranet, I sometimes transfer large files, about 4G, to an CentOS old box that I use for a web server. I transfer with ftp or sftp. Usually, before the file is complete, the transfer "stalls". At that point, ping from the destination box to the router fails. I then deactivate the net interface on the destination box and then activate it. Ping is then successful, and the transfer is completed. The transferred file is correct, as verified with sha1sum. All connections are via cat6 wire. So what do you think? Should I try changing the net card? Any tests to run? Any other suggestions? Thanks for your help. Mike.

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Sendmail, localloop, and iptables -- should I be more paranoid?
by Robert Moskowitz 23 Nov '10

23 Nov '10

By default, sendmail only listens on the localloop: DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl But by default to allow sendmail to even work the iptables entry is: -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 25 -j ACCEPT Without this, sendmail can't even connect to localloop. But should I handedit this line to something like: -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp -d 127.0.0.1 --dport 25 -j ACCEPT And once you handedit iptables, you can't use the gnome firewall applet, I suspect...

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upcoming mailman version change?
by Dave Stevens 23 Nov '10

23 Nov '10

Hi, I'm using CentOS on a box that, among other things, offers mailman mailing lists, currently mailman 2.1.9. Version 2.1.14 is avilable from the developers but integrating it into the system promises to be tedious. I looked at RHEL 6 and don't know where to look to find the version there, which I assume will be the version in CentOS 6. Can anyone either confirm what version will be in C6 or where to find the full feature list in RHEL 6? Dave -- "It is no measure of health to be well adjusted to a profoundly sick society." Krishnamurti

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where to download tzdata-java-20101-1.e15 RPM fro CENTOS 5.5 X86?
by mcclnx mcc 22 Nov '10

22 Nov '10

I am installed CENTOS 5.5 on X86. After finish, I tried to apply latest patches. Rpm patch manager say need "dependency" "tzdata-java-20101-1.e15". I search CENTOS 5.5 CD and can NOT find this file. I also search Internet and no result. Can anyone tell me where to download "tzdata-java-20101-1.e15" RPM? Thanks.

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firefox. java. 64 bit. bleah!
by m.roth＠5-cent.us 22 Nov '10

22 Nov '10

Found this <http://plugindoc.mozdev.org/linux-amd64.html#java-sun>, and I remember the plugins directory... except firefox 3.6.11, I can't find any, not in ~/.mozilla, not in /usr/lib64/mozilla. Anyone have a clue for the poor? mark

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Re: [CentOS] Router for SOHO network - hardware considerations
by Bob Puff＠NLE 22 Nov '10

22 Nov '10

I am looking for something similar to this thread.. Is there a way to make a small CentOS distro that is bootable and runnable from only a USB memory stick? It would need to be able to have files modified, but I wouldn't want the USB stick to die prematurely due to a ton of writes... Bob

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Strange ntp behaviour?
by Robert Moskowitz 22 Nov '10

22 Nov '10

The following is from my logwatch email: --------------------- XNTPD Begin ------------------------ XNTPD Killed: 7 Time(s) XNTPD Started: 8 Time(s) Total interfaces 8 (non-local: 4) Total synchronizations 6 (hosts: 1) Errors getaddrinfo: "0.centos.pool.ntp.org" invalid host address, ignored: 2 time(s) getaddrinfo: "1.centos.pool.ntp.org" invalid host address, ignored: 2 time(s) getaddrinfo: "2.centos.pool.ntp.org" invalid host address, ignored: 2 time(s) ---------------------- XNTPD End ------------------------- Yet from this host I get: # host 0.centos.pool.ntp.org 0.centos.pool.ntp.org has address 208.53.158.34 0.centos.pool.ntp.org has address 69.50.219.51 0.centos.pool.ntp.org has address 108.76.168.145 So what is NTP doing here; why the errors for getaddrinfo? Or is this nothing more than 2 out of some many times getaddrinfo failed, but worked just fine enough to count?

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