We have a client with a multi-data center installation of Cassandra. While, I was in another one of our data centers working on a client cluster and attempting to run a rebuild and got a stream error. Cassandra server is Read more…
I just had a client recently ask, “Why doesn’t my secondary dns server update a zone?” They’re running pdns and poweradmin packages: poweradmin-2.1.4-1.el6.noarch pdns-4.0.3-1pdns.el6.x86_64 pdns-backend-mysql-4.0.3-1pdns.el6.x86_64 on both ns1 and ns2 servers. The ns2 server is set to be slave of Read more…
Today I got the error message: Error: Could not stat() command file ‘/var/spool/nagios/cmd/nagios.cmd’! The external command file may be missing, Nagios may not be running, and/or Nagios may not be checking external commands. An error occurred while attempting to commit Read more…
This was a weird one for me. We had a client ask for a CentOS 7 installation, one of the other techs always installs CentoOS 6 to do a Dell firmware update then leaves it to install what the client Read more…
This is my blog, I’m a unix administrator that always come across things that I need to fix. My personal preference is CentOS. So most of the answers you find here will be centered around CentOS 6 or 7 and Read more…
How do you reformat a SAS drive when when not in the data center? I’m sure you tried the same thing as me. I need to clean out a stack of old drives that got pulled from servers over the Read more…