Websites either run on Linux-based operating systems (around two-thirds) or Windows (around a third).  There are around 1% of sites running on other stuff. Until a couple of years ago, CentOS was my Linux operating system of choice.  It was stable, based on a commercial Linux distro and – importantly for some of the web hosting and development work I do – ran cPanel well.  The decision to discontinue production of it came as a surprise to many in the tech community – me included.  CentOS, short for Community Enterprise Operating System, has been a popular choice for servers and