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
Aug 31, 2012
Using Dell SUU on RHEL 64 Bit
Part of many systems admins jobs is to update firmware and drivers on the servers. This is needed to keep systems stable and avoid nasty crashes and OS incompatibilities. The best time is when you build the system and also when you can get the time when you can take the system offline to give it much needed patches. Dell provides a downloadable DVD ISO for their Server Update Utility (SUU), which runs on... read more
Aug 24, 2012
Introspect error The name org.freedesktop.Hal was not provided Running RHN_REGISTER
You would think something as simple as running rhn_register would just run and register for updates without any issues. There are times when this is not the case and today was one of them. The issue occurred when running rhn_register on RedHat EL 5.4 (Tikanga) servers when after selecting next on teh review screen I received the error. “Introspect error: The name org.freedesktop.Hal was not provided... read more
Aug 22, 2012
How To Increase the Maximum Number of File Descriptors RHEL / CentOS
Recently ran into a issue where a program running on RHEL was using up all the available File Descriptors. First we need to find out what the maximum number of open file descriptors is set to. We accomplish this by running the command: # cat /proc/sys/fs/file-max 589420 The output tells us it is set to 589420. The vendor asked for this to be increased to 1639200. We can add change the value immediately by... read more
Aug 14, 2012
Gathering Open Systems System information with cfg2html
As systems administrators we are always wanting a way to gather information on your Open Systems, you can do this with various different systems commands and add them in scripts and set as cron jobs, or whatever method you prefer. Now if there is a program that can do that for us and output in txt or html or both, then thats better. Well, such a program does exist call cfg2html... read more
