Notes

joshua stein via @jcs@jcs.org - Apr 27 2023 11:06:44

Am I the only one that finds the default letter spacing of Substack's custom font to be way too wide? Tweaking the CSS to add "letter-spacing: -0.5px;" makes it so much more readable for me.

joshua stein via @jcs@jcs.org - Apr 26 2023 12:21:56

Oh you can't decide which Mastodon instance to join?

Try picking from 37 Geocities neighborhoods not realizing you can't change it later and the Wayback Machine will haunt your dreams with screenshots of your homepage and the webrings you joined for the rest of your adult life

joshua stein via @jcs@social.sdf.org - Apr 19 2023 08:52:49

And prior to Apple Airport firmware 7.9.1 (2019), even if you did a factory reset of the device, your configuration was still kept on it but just made inactive.

You could factory reset one, enable SSH, then login and see the previous configuration which would include the WiFi network key, any RADIUS authentication credentials, and an Apple ID "infinite authentication token" if "Back to my Mac" was enabled (though I never found out what token allowed access to).

https://arstechnica.com/information-technology/2023/04/used-routers-often-come-loaded-with-corporate-secrets/

joshua stein via @jcs@social.sdf.org - Mar 08 2023 10:55:27

MacTCP on my Macintosh Plus has non-configurable DNS-lookup and TCP-open timeouts of 45 seconds.

I like imagining that UDP or SYN packet reaching the router on its 10BASE2 ethernet and then getting queued while the router initializes its modem, dials a phone number, waits while it rings, waits for its PPP login credentials to be verified by the RADIUS server, and then finally sends its queued packet out to the internet, where it gets a reply that is routed back to the Mac after 35 seconds.