#centos5

Resolved: Cent OS: How do I turn off or reduce memory overcommitment, and is it safe to do it? #solution #fix #computers

Cent OS: How do I turn off or reduce memory overcommitment, and is it safe to do it?

From time to time “my” server stalls because it runs out of both memory and swap space. (it keeps responding to ping but nothing more than that, not even ssh).

I’m told linux does memory overcommitment, which as far as I understand is the same as banks do with money: it grants to processes more memory than…

How to: Can not switch drbd to secondary #dev #computers #programming

Can not switch drbd to secondary

I’m running drbd83 with ocfs2 in centos 5 and planning to use packemaker with them. Afer some time, I’m facing drbd split brain problem.

version: 8.3.13 (api:88/proto:86-96) GIT-hash: 83ca112086600faacab2f157bc5a9324f7bd7f77 build by [email protected], 2012-05-07 11:56:36 1: cs:StandAlone ro:Primary/Unknown ds:UpToDate/DUnknown r- ns:0 nr:0…

Resolved: nagios Missing Dependency: perl(Net::SNMP) #computers #fix #solution

nagios Missing Dependency: perl(Net::SNMP)

I have an odd problem. I’m trying to install nagios NRPE but it keeps failing with

nagios-plugins-1.4.15-2.el5.rf.i386 from rpmforge has depsolving problems > Missing Dependency: perl(Net::SNMP) is needed by package nagios-plugins-1.4.15-2.el5.rf.i386 (rpmforge)

The package 1:net-snmp-perl-5.3.2.2-9.el5_5.1.i386 is already installed and latest version.

Solution: How to remove packages that are no longer needed on CentOS 5? #dev #computers #answer

How to remove packages that are no longer needed on CentOS 5?

While installing package I get some additional packages on dependency. But when I remove installed package with yum, the dependency packages are not removed, though I don’t need them anymore.

How can I remove them automatically?

Answer [by Gary]: How to remove packages that are no longer needed on CentOS 5?

Check out “package-cleanup”…

Fixed: Bind zone transfer refused #fix #solution #development

Bind zone transfer refused

UPDATE:

BIND Version:

[[email protected]] $ named -v BIND 9.3.6-P1-RedHat-9.3.6-16.P1.el5

Operating System:

CentOS release 5.6 (Final)

After running [[email protected]] $ dig @10.224.45.130 example.com. axfr:

Slave:

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-16.P1.el5 <<>> @10.224.45.130 example.com. axfr ; (1 server found) ;; global options: printcmd ; Transfer failed.

Mas…

Resolved: High disk I/O – jbd2/sda2-8 process #solution #fix #computers

High disk I/O – jbd2/sda2-8 process

I have run a file server on a CentOS 5.8 final server.

My only concern at the moment is what appears to be intermittent but continuous high disk I/O activity causing a general slowdown because of jbd2/sda2-8 process.

jbd2/sda2-8 is making use of /dev/sda2, which is the 2nd partition of the first harddrive (IE: root partition).

More info: using “iotop” the…

Answer: How to remove packages that are no longer needed on CentOS 5? #it #fix #development

How to remove packages that are no longer needed on CentOS 5?

While installing package I get some additional packages on dependency. But when I remove installed package with yum, the dependency packages are not removed, though I don’t need them anymore.

How can I remove them automatically?

Answer [by Gary]: How to remove packages that are no longer needed on CentOS 5?

Check out “package-cleanup”…

How-to: Bind zone transfer refused #computers #it #solution

Bind zone transfer refused

UPDATE:

BIND Version:

[[email protected]] $ named -v BIND 9.3.6-P1-RedHat-9.3.6-16.P1.el5

Operating System:

CentOS release 5.6 (Final)

After running [[email protected]] $ dig @10.224.45.130 example.com. axfr:

Slave:

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-16.P1.el5 <<>> @10.224.45.130 example.com. axfr ; (1 server found) ;; global options: printcmd ; Transfer failed.

Mas…