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

Running Docker.io Under Ubuntu Linux

Running Docker.io Under Ubuntu Linux

Docker.io allows you to create containers holding all the dependencies for an application, and yet nothing gets shared outside its environment. Let’s check out how to use it in Ubuntu.

Using dmesg on Linux

Using dmesg on Linux

With a little help understanding the basics, the dmesg command can become a very powerful tool in a system admin’s tool-set.