David Mills' Fuzzball (github.com)

An archive of Mills' Fuzzball operating system for PDP-11 computers. Its main application was as a router in NSFnet.

Oh that's interesting, thank you. I never knew that so much of this stuff was originally written in assembly, I thought it was all 'C' from day #1.

For instance this FTP server: https://github.com/pdp11/fuzzball-operating-system/blob/mast...

in files/DCN1.TXT there is essentially a hosts file, and in it are a bunch of udel hostnames that still existed when I was in undergrad and working for the EE/CIS lab. The PDPs were all replaced by sun systems at that point, but still served central roles in the infra and likely had the same IPs. I remember having a few 128.4 and 128.175 addresses memorized for various networking configs. those two networks were supposedly originally David's, but he had gifted 128.175 to UD and as a result the computer in my dorm (or I guess my wrt54g) had a full blown public IP in that range.

Fuzzball was named after Lynn Gold's fuzzy little white Bichon.