Archive for the ‘GNU/Linux’ Category

Shared Memory Tuning

Sunday, June 26th, 2011

To see all your shared memory settings, execute:

ipcs -lm

To check your maximum memory shared segment, run:

cat /proc/sys/kernel/shmmax

Mine showed up as ’33554432′ which is 32MB. That’s pretty small especially if eAccelerator is installed on your webserver. So I changed it to 1GB which is ’1073741824′.

To change SHMMAX without needing to reboot (yay) execute:

echo 1073741824 > /proc/sys/kernel/shmmax

Or you can use…

sysctl -w kernel.shmmax=1073741824

To make the change permanent execute:

echo "kernel.shmmax=1073741824" >> /etc/sysctl.conf

Pat yourself after.

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Posted in GNU/Linux | No Comments

rtorrent’s “min_peers” Explained

Tuesday, February 9th, 2010

Alright, so I just discovered something today about rtorrent’s min_peers setting and I think everyone that uses rtorrent should know this since that setting could pretty much destroy you as a seeder.

(more…)

Posted in GNU/Linux | 3 Comments

“/lib/ld-linux.so.2: bad ELF interpreter:” Error

Tuesday, June 23rd, 2009

Ok so this is the first time that I’ve encountered this error on a fresh vanilla install of Fedora 10 (I’m not going to upgrade to 11 just yet since I’m going to wait for CentOS 6 which is essentially Fedora 10 in the future). I was trying to run hldsupdatetool.bin and it gave me that error. Now nearly every binary depends on glibc, the question is do they depend on the 32-bit or 64-bit version of it. I did a yum install glibc and what came up was that I had the 64-bit version of glibc (duh, x86_64 F10). So the only thing I did was install the 32-bit version of glibc and now everything is back to normal (until more problems arise).

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Posted in GNU/Linux | 21 Comments

“Can’t locate RRDs.pm” Error

Saturday, June 13th, 2009

I was installing Webminstats on one of my dedicated servers and I got the following error.

Software error:

Can't locate RRDs.pm in @INC (@INC contains: . /usr/libexec/webmin /usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi /usr/lib64/perl5/site_perl/5.8.7/x86_64-linux-thread-multi /usr/lib64/perl5/site_perl/5.8.6/x86_64-linux-thread-multi /usr/lib64/perl5/site_perl/5.8.5/x86_64-linux-thread-multi /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl/5.8.7 /usr/lib/perl5/site_perl/5.8.6 /usr/lib/perl5/site_perl/5.8.5 /usr/lib/perl5/site_perl /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi /usr/lib64/perl5/vendor_perl/5.8.7/x86_64-linux-thread-multi /usr/lib64/perl5/vendor_perl/5.8.6/x86_64-linux-thread-multi /usr/lib64/perl5/vendor_perl/5.8.5/x86_64-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl/5.8.7 /usr/lib/perl5/vendor_perl/5.8.6 /usr/lib/perl5/vendor_perl/5.8.5 /usr/lib/perl5/vendor_perl /usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/5.8.8) at sysstats-rrd-lib.pl line 29.
BEGIN failed--compilation aborted at sysstats-rrd-lib.pl line 29.

For help, please send mail to this site's webmaster, giving this error message and the time and date of the error.
Software error:

[Sun Jun 14 02:57:15 2009] index.cgi: Can't locate RRDs.pm in @INC (@INC contains: . /usr/libexec/webmin /usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi /usr/lib64/perl5/site_perl/5.8.7/x86_64-linux-thread-multi /usr/lib64/perl5/site_perl/5.8.6/x86_64-linux-thread-multi /usr/lib64/perl5/site_perl/5.8.5/x86_64-linux-thread-multi /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl/5.8.7 /usr/lib/perl5/site_perl/5.8.6 /usr/lib/perl5/site_perl/5.8.5 /usr/lib/perl5/site_perl /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi /usr/lib64/perl5/vendor_perl/5.8.7/x86_64-linux-thread-multi /usr/lib64/perl5/vendor_perl/5.8.6/x86_64-linux-thread-multi /usr/lib64/perl5/vendor_perl/5.8.5/x86_64-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl/5.8.7 /usr/lib/perl5/vendor_perl/5.8.6 /usr/lib/perl5/vendor_perl/5.8.5 /usr/lib/perl5/vendor_perl /usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/5.8.8) at sysstats-rrd-lib.pl line 29.
[Sun Jun 14 02:57:15 2009] index.cgi: BEGIN failed--compilation aborted at sysstats-rrd-lib.pl line 29.
Compilation failed in require at ./sysstats-lib.pl line 47.

For help, please send mail to this site's webmaster, giving this error message and the time and date of the error.
Software error:

[Sun Jun 14 02:57:15 2009] index.cgi: [Sun Jun 14 02:57:15 2009] index.cgi: Can't locate RRDs.pm in @INC (@INC contains: . /usr/libexec/webmin /usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi /usr/lib64/perl5/site_perl/5.8.7/x86_64-linux-thread-multi /usr/lib64/perl5/site_perl/5.8.6/x86_64-linux-thread-multi /usr/lib64/perl5/site_perl/5.8.5/x86_64-linux-thread-multi /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl/5.8.7 /usr/lib/perl5/site_perl/5.8.6 /usr/lib/perl5/site_perl/5.8.5 /usr/lib/perl5/site_perl /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi /usr/lib64/perl5/vendor_perl/5.8.7/x86_64-linux-thread-multi /usr/lib64/perl5/vendor_perl/5.8.6/x86_64-linux-thread-multi /usr/lib64/perl5/vendor_perl/5.8.5/x86_64-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl/5.8.7 /usr/lib/perl5/vendor_perl/5.8.6 /usr/lib/perl5/vendor_perl/5.8.5 /usr/lib/perl5/vendor_perl /usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/5.8.8) at sysstats-rrd-lib.pl line 29.
[Sun Jun 14 02:57:15 2009] index.cgi: [Sun Jun 14 02:57:15 2009] index.cgi: BEGIN failed--compilation aborted at sysstats-rrd-lib.pl line 29.
[Sun Jun 14 02:57:15 2009] index.cgi: Compilation failed in require at ./sysstats-lib.pl line 47.
Compilation failed in require at /usr/libexec/webmin/sysstats/index.cgi line 27.

For help, please send mail to this site's webmaster, giving this error message and the time and date of the error.

(more…)

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Posted in GNU/Linux | 2 Comments

New CentOS Desktop

Thursday, April 2nd, 2009

As I was updating my CentOS 5.2 desktop computer, I noticed something new after the update a couple of days ago. There’s a new wallpaper and it’s damn pretty! Here’s the screenshot.

New CentOS Desktop

Posted in GNU/Linux | No Comments

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