Archive for the ‘Linux’ Category

Recently I noticed that my clock was beginning to skew, and NTP wasn’t able to keep up with it.  This is due to having a “system clock” and a “hardware clock” the system clock is the one that the OS controls, while the hardware clock is controlled by the BIOS and runs on the hardware.  […]

Monday, July 15th, 2013 at 06:00 | 0 comments
Categories: How To, Linux

I have been doing a bit of cleanup around my home file server, and have noticed that while I have a really beautiful collections of family photographs there is no logical organization around these photos.  I have many duplicates names, which would collide in the event of trying to merge multiple directories, and even worse […]

Monday, June 17th, 2013 at 06:00 | 0 comments
Categories: How To, Linux

Today we are going to go through the process of creating a clustered file system on a pair of Oracle Linux 6.3 nodes.  This exercise is not very resource intensive.  I am using two VMs each with 1GB of RAM a single CPU and a shared virtual disk file in addition to the OS drivers. […]

Monday, March 4th, 2013 at 06:00 | 2 comments
Categories: How To, Linux, OCFS2

In Part One we went over the basics of sudo, what it is, why we use it, and how it is used properly.  In this article we are going to take it a step further and look at specific use cases for sudo.  The key thing to remember though, is that you have two ways […]

Thursday, January 31st, 2013 at 06:00 | Comments Off

What is Sudo? Prior to sudo whenever you wanted to run a command as a specific user then you would su (switch user) to gain access to a shell for that user.  This of course required that you knew the password for that user, and it would spawn a new shell after successful authentication.  The […]

Wednesday, January 30th, 2013 at 06:00 | Comments Off
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