Sun 18 March 2018 | -- (permalink)

Jeff Haas gave a talk at today's IEPG meeting which, oversimplified, boiled down to "TCP AO still looks like the best match for solving a whole bunch of security problems related to routing protocols, but nobody uses it because nobody has implemented it because nobody uses it." This got me …

Thu 28 September 2017 | -- (permalink)

I mostly try to avoid programming with POSIX signals, in part because I was spoiled in my youth: even after decades of incremental improvements, POSIX signals have not really caught up to what ITS had back in the 1970s. But sometimes they're, if not the right tool, the least bad …

Thu 07 September 2017 | -- (permalink)

sed, the Unix stream editor, is usually only the right tool for a job if the job is a quick-n-dirty hack, but occasionally one needs to do that, or one needs to embed some whacky thing in a shell script on a system with minimal Unix tools, or whatever. In …

Tue 05 September 2017 | -- (permalink)

Python went missing after a routine brew update. Well, sort of.

It turns out that this is just a naming ideology thing. On pretty much every platform these days, the name python is really an alias for python2, which in turn is an alias for python2.7. No doubt this …

Mon 04 September 2017 | -- (permalink)

Finally got around to fixing the "Meta" key handling on my laptop so that XQuartz, Terminal, and Emacs would all agree on which key is Meta. A friend asked me to document this.

Emacs

Just works out of the box. Well, if one picks the right box.

I had been …

Mon 04 September 2017 | -- (permalink)

After the Nth time that I've muttered about having found the solution to some pesky technical thing only to have some friend say "Gee, I hope you posted that somewhere", I decided to test whether a blog would be a useful way to handle such things.

Don't expect this to …