Determine which processes are using swap in Linux

admin • • No Comment
Some servers may have several applications, each running in their own allocated piece of RAM and SWAP.  It seems easy enough to use `top` to determine memory usage, but it wasn't so obvious (to me) as to how to determine swap usage.  A nifty little command called smem to the rescue. So what is smem?  It is a "Report memory...Read More »

ssh logins using keys

admin • • No Comment
I have wanted to experiment and expand upon different ways of ssh'ing into one linux box from another using the ssh-keygen.  This article demonstrates several different methods that I have tested and used throughout the years. Actually what has happened, is that over time, scripting evolved and always seem to make tweaks along the way. Another variation. A more lengthy...Read More »

Spacewalk Certificate expiration warning [Resolved] 2018

admin •
I'm not going to go into detail as to what spacewalk is and what this message is all about, you are here for a reason.  You may have received an auto-generated email from Spacewalk to "inform you that your Spacewalk Certificate has expired on your [fqdn] server. After 4 day(s) the systems management services provided by your Spacewalk Server will...Read More »

Capture Lock Screen in Windows

admin •
If you ever wanted to capture a screenshot of the logon screen on a physical machine, you may have used whatever means necessary to do so. Which for me, was through the use of a digital camera. The digital camera may have captured the spirit of the screenshot, but always seems to lack in quality. Wouldn't it be great to...Read More »

How to add desktop icons on CentOS 7

admin •
For the most part, I prefer to work using the terminal on a minimal install of Linux; however, there are those occasional times where the GUI is necessary.  Recently faced with having to add a few desktop shortcuts to the Desktop posed a bit of a problem for me. Basically, wanted to achieve two things, a Desktop icon to launch...Read More »

Icinga2 Monitoring for Windows Disks Not Working [Resolved]

admin •
Among the many possible services to monitor a Windows based operating system using Icinga2, the service that utilizes the check_command of disk-windows has not quite worked as expected.  It may have been a combination of things that was done incorrectly over the years, or maybe plugin versioning. In any case, a snippet below demonstrates a thought to be working service...Read More »