Oct 2, 2012
How To Disable fsck at boot on RHEL
Recently ran into the need to disable fsck on a large filesystem at boot. This is not recommended to do by RedHat but in this case it was a evil that had to be put in place with the caveat of making sure to manually run fsck at a later time. According to RedHat: Red Hat does not typically suggest disabling the on-boot fsck except in situations where the machine does not boot, the file system is extremely... read more
Sep 30, 2012
Gathering System Statistics for Linux using SAR
You know how it happens, you are working on a killer bash script and all of the sudden your manager is standing at your cube asking you to look at slow performing server. It happens all of the time, but luckily we have many tools at our disposal and one such tool is Sar. If you are needing I/O, CPU stats and other data from today or several days back, then sar is the tool to use for Linux. If you are... read more
Sep 13, 2012
Install and Setup Samba on CentOS / RHEL
It is a fact of life,, there are Windows clients that need to access shared data and as admins we like to have control and secure way to deliver the data from Linux to Windows and this is where Samba comes into play. A basic Samba share on a Linux server is not very hard to implement and in this post we will be using CentOS to deliver the goods. Install Samba package $ sudo yum install samba samba-client... read more
Sep 12, 2012
Using Dell racadm on RedHat / CentOS
Recently have had the pleasure of using part of the the Dell Server Administrator tools to manage their hardware on RHEL 5 and 6 servers. The servers had been built and shipped out but the DRAC’s were un-configured. With RACADM command this is not an issue and can be done with command line tools and the use of configuration files. This is assuming the Server Admin tools have been installed on the... read more
Aug 7, 2012