I was curious about what exactly they mean when they say this:
- A good understanding of TCP/IP and its implementation and configuration in Linux.
- Experience with Linux kernel configuration, performance monitoring, and tuning.
Regarding the first point, I've got experience configuring network interfaces, and a bit of knowledge about subnetting - but I've never set up or managed a network with multiple subnets. I know enough to keep a couple VPS's running, along with my home computers (mixed win/nix environment, but not anything for /r/homelabs). What would be some areas that a person like myself could explore, in order to gain skills that would fulfill this requirement (or get me in the door)? Are they interested in low-level understanding of how packets are constructed/composed/transmitted, and so on, possibly with some amateur-level pen-testing experience, or something along those lines?
As for the second point, I've never compiled/installed my own kernel from scratch - is that basically what they're looking for here: someone who's into that kind of thing? I've always been pretty damn happy with stock Ubuntu, but I've got no fear working in RHEL/CentOS environments, I've got pretty strong google-fu, and 5+ years using Linux every day, both for home & work. So although I've never done that, I imagine I could figure it out. As for monitoring, I'm solid with htop& collecting/analyzing logs using grep& awk, and I'm aware of Nagios, but that's about it. And then tuning - is this a question of knowledge/ability to craft a minimal kernel for compilation, like for embedded or high-load systems? Or is it a question of tuning services/workers, like nginx, apache, web apps, etc?
Alright thanks!
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