I have been working with Nginx and Varnish for a good little bit. They are both obviously great proxy servers. The question that I have asked myself and others over this time is which should I actually use? Which performs…
Arrays can be a useful tool when coding your bash scripts. The simplest way that I can define an array is to state that an array is a variable for a multi-instance dataset. For example, a variable is used when…
If you run a wordpress blog these days, you are likely to experience brute force attacks where nefarious individuals attempt to break in to your website by quickly a list of userids and passwords against your wp-login.php. Here’s how I…
So, at your organization there is a high likelihood that you will need to create an FTP server to allow your customers and vendors to send you files. While having an ftp server is useful and all, the old standard…
Nearly every sysadmin has become familiar with the top command. It displays a list of the processes running on the System in a real-time dynamic interface. While Top is great without knowing much about it, adding some filtering and sorting…
Have you ever wanted to find out how much memory every one of your servers has? Or how about target a command to be run against just your CentOS machines? If you have your servers under Salt configuration management, you…