Plurrrr

The SSH agent is a central part of OpenSSH. In this post, I’ll explain what the agent is, how to use it, and how it works to keep your keys safe. I’ll also describe agent forwarding and how it works. I’ll help you reduce your risk when using agent forwarding, and I’ll share an alternative to agent forwarding that you can use when accessing your internal hosts through bastions.

Have you ever heard of metaclasses in Python? I hadn’t until recently, and I had been using them for months without actually knowing how they work. Python’s metaclass functionality is one of those language features you’ll probably never need to know about, much less mess with, but it offers some keen insight into Python’s OOP model, and is actually quite powerful.

Going around your files and directories using the shell can feel slow and confusing, and not only when you’re a beginner. Personally, I was using GUIs (Graphical User Interfaces) to display, rename, move, and delete my files for a long time. It took me a couple of years to really get used to the shell to perform these operations. Today, I only use the shell to manage my files, and I think it is the better way.