I started to administer my university unix computers in 1995, including Linux. I rememeber modifying the kernel to account for my NIC. I can say that I mostly

I started to administer my university unix computers in 1995, including Linux. I rememeber modifying the kernel to account for my NIC. I can say that I mostly knew how my server worked. Now I use Ubuntu LTS and Stack Exchange to run my home server as a platform for docker containers.