About Gary Sims

Gary has been a technical writer, author and blogger since 2003. He is an expert in open source systems (including Linux), system administration, system security and networking protocols. He also knows several programming languages, as he was previously a software engineer for 10 years. He has a Bachelor of Science in business information systems from a UK University.

Articles by Gary Sims

Using a Hex Editor on Linux

Using a Hex Editor on Linux

There is a class of editor known as a “Hex editor” which allows you to edit any type of file, especially binary files. Here are a few examples for Linux.

NixOS Full Review and Hands-on

NixOS Full Review and Hands-on

NixOS is a Linux distribution with its own unique package manager. The entire OS is built by the Nix package manager. Check out the full NixOS review here.