domi (networking witch)

an account for network shenanigans.
feel free to follow, more silly stuff will be posted here

Last Notes

2026-02-17 12:58:00 UTC

tomorrow (2026-02-18) will *most likely* mark the last TLS renewal for The ARPA Zone, as CA/B has explicitly prohibited cert issuance for *.arpa domains, effective 1st of March (see https://github.com/cabforum/servercert/issues/153#issuecomment-2625717318 for context). I'm writing "most likely" because for all I know the cert may fail to renew tomorrow already - who knows!
Pessimistic instance EOL: tomorrow :neocat_googly_woozy:
Optimistic instance EOL: ~2026-05-19
preparing for the pessimistic scenario, i'd like to thank everyone for all the jokes and fun times here. o/

2025-11-26 11:03:03 UTC

update on 1.6.0.0.8.0.0.b.e.d.0.a.2.ip6.arpa: remember how I wrote that I'll nuke this instance after 6 months or so? well...
it's been almost a year now, and after several delays (and my ISP not killing me after they learnt what i'm doing, xoxo bgp.wtf), i've arrived at the very hard decision to... continue running this indefinitely, because *somehow* we have a non-zero amount of active shitposters here.
The ARPA Zone is here to stay! I need to configure DB backups :akko_giggle:

2025-04-04 19:07:52 UTC

surprising observation: `ping` does NOT support time travel
I will be sending a patch to fix that as soon as we can figure out all problems with relativity. Or maybe even sooner!
https://1.6.0.0.8.0.0.b.e.d.0.a.2.ip6.arpa/fileserver/01GPKJ10SD5JZ2AAY7R6R903G0/attachment/original/01JRMSEM0SB2X6K02JT868GAT4.png

2025-03-29 22:33:08 UTC

- reply

@nprofile…gx4l @nprofile…unmd es - domi. i'm Dominique, and s stands for Segmentation Fault
i do not condone anyone calling me names like this

2025-03-29 22:32:19 UTC

- reply

@nprofile…gx4l @nprofile…unmd fuck off

2025-03-29 21:29:07 UTC

and now, for something completely different: Bad Apple playing through a Traceroute
new blogpost: https://sdomi.pl/weblog/24-arpa-hacks/
https://1.6.0.0.8.0.0.b.e.d.0.a.2.ip6.arpa/fileserver/01GPKJ10SD5JZ2AAY7R6R903G0/attachment/original/01JQHWW296QKQWKT2X7VPFEY55.webm

2025-01-30 17:05:45 UTC

- reply

happy to see that it did work! here's a video of it in action: https://f.sakamoto.pl/PO_bell103.webm
this will *also* get a blogpost sometime in the near future. I'm still considering trying TCP/IP, but it would be ungodly slow at 300baud :p
(also, yes, I have revoked the token visible in the video)
https://1.6.0.0.8.0.0.b.e.d.0.a.2.ip6.arpa/fileserver/01GPKJ10SD5JZ2AAY7R6R903G0/attachment/original/01JJW2CHRW8D5XJDNJQQF9D8NJ.jpeg

2025-01-30 15:40:05 UTC

Hello world! This status has been posted from a phone booth, using Bell103 compatible softmodem, a lot of magic, and some wishful thinking.
hope this works

2025-01-29 19:34:53 UTC

To answer the neverending flow of "HOW?" questions with regards to my previous post: I will be releasing a blogpost about this, how revdns works in general, and a few other interesting hacks and tidbits. Coming sometime next month!

2025-01-29 14:10:05 UTC

According to all known laws of DNS, there is no way a fedi instance could be hosted on an .ARPA domain.
Even if you get ahold of a domain like this, it should only be used for PTR records - right?
The instance, of course, federates anyway - because DNS doesn't care what humans think is impossible.