You can download the troff
source of Brian Kernighan’s UNIX for Beginners - Second Edition
from the Plan 9 archive
of the 7th Edition Unix documentation.
The Plan 9 people re-packaged the various files as bun archives
probably sometime in the 1990s,
but you can extract the troff input files and run them
through GNU groff today,
in the 21st Century.
Trees that overhang roads give you some idea of the size of the biggest vehicles that drive along the road.
Three terrible and two good fortunes.
I moved sshd from TCP port 22 to a higher port
2026-08-01T23:31Z.
I also put the
endlessh
tarpit on port 22.
sshd has not seen a single password guessing attempt
since then.
The combination of ssh tarpit, and non-standard port works.
Although I can’t find it on the sum total of human knowledge, the World Wide Web, I have a memory that one of the Enlightened Unix Masters, Dennis Ritchie or Brian Kernighan maybe, wrote some tips about how to format written input for the venerable troff typesetting system.
I stumbled across a blog post about finding the median of a list of numbers as a job interview question.
481 posts in 4 years.
Back in the day, before about 1995, if you wanted to use a terminal emulator, you used xterm
That was 30 years ago.
Because you use Linux as I recommend,
I strongly encourage you to use xterm today.
It’s still the best terminal emulator.
I have contemplated trolling software engineers by re-naming “object oriented programming”, and claiming I have made a major discovery, Thing Based Programming.
You’ve heard of the Silurian Hypothesis, now get ready for the Eschatian Hypothesis!
Eschatian Hypothesis
David Kipping
February 3, 2026 draft
