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A restored PDP-11/83 serving this page on 211BSD Unix

27 points2 hourspdp1173.com

The box is a restored Q-bus PDP-11/83 named minerva: Mentec M11 CPU, two chassis tied with M9404/M9405, RQDX3, 2xEmulex UC07, KDA50, RLV12, DEQNA, M3104. Storage is RA82 + dual RA92, MFM boot/swap, dual RL02, RX50s, and a TKZ50. OS is 2.11BSD.

The live panel is top. /cgi-bin/webtop is the raw snapshot.

A 16-bit httpd will not survive the front page, so Varnish/Caddy/Cloudflare cache the HTML and a 5-second webtop sample. Origin is still the 11 itself, and it handles all of the webtop and visitor count requests.

Telnet exists (pdp1173.com, guest) but it is a 40-year-old UNIX with no modern security story. Please do not treat it as a challenge box; I can restore from tape, but that ruins it for everyone else.

Happy to answer Mentec, MSCP, Q-bus, or 2.11BSD questions.

To get BSD running on the Mentec, I had to customize the BSD kernel to use FPSIM, as the Mentec supports IEEE floating-point and NOT the DEC formats.

cube0018 minutes ago

Feels a little disingenuous to put TMOG on a .org domain when it sells commercial licences.

kjs356 minutes ago

Please do not treat it as a challenge box; I can restore from tape, but that ruins it for everyone else.

Unfortunately, for a disturbing percentage of the Internet, ruining things for everyone else is the goal. I'd turn off telnet.

jmbwell24 minutes ago

I love it. My PDP-11 has some fault that keeps it blowing fuses. Emulators don’t feel the same. Real hardware doing the work, well done

frumplestlatz32 minutes ago

Thanks for keeping the spirit of the old internet alive :)

I hope you won’t have to restore it from tape!

budman141 minutes ago

as of 12 noon CST, it pings but does not telnet.

mlmonkey44 minutes ago

Why is the domain `pdp1173.com` when the machine is a PDP 11/83 ?

ktm5j21 minutes ago

There's a couple eyebrow raising things about this post.. like the fact that there's nothing but vague details in text and one photo with an AI prompt like alt-text. I think they're just trying to get clicks for that banner ad.

corbinvachal2 hours ago

[dead]