Twitter from the Linux Command Line

Okay, so you are a crazy BASH or Korn shell nut (DASH, ASH, TCSH, CSH, ZSH, etc., etc. yes, I mean all of you) and you totally want to be able to Tweet on your Twitter feed without going to one of those krufty GUI utilities.  Such overkill for such a simple task.  I feel …

Updating Zimbra on Linux

Having been a Zimbra Administrator for some time and having always worked on the Zimbra Open Source platform I have found that documentation on the update process has been very much lacking.  The process is actually quite simple and straightforward under most circumstances but for someone without direct experience with the process it can be …

Linux’ kscand

In Linux the kscand process is a kernel process which is a key component of the virtual memory (vm) system.  According to Unix Tech Tips & Tricks’ excellent Understanding Virtual Memory article “The kscand task periodically sweeps through all the pages in memory, taking note of the amount of time the page has been in …

Linux Memory Monitoring

As a Linux System Administrator one question that I get asked quite often is to look into memory issues. The Linux memory model is rather more complex that many other systems and looking into memory utilization is not always as straightforward as one would hope, but this is for a good reason that will be …