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[[!tag open_issue_hurd]]
# What is the terrible mDNS responder?
Suppose you have the Hurd running on a another machine in your local
network. `ssh <IP-ADDRESS>` is not guarenteed to work, because your
router will occassionally change the IP address of your Hurd machine.
That's kind of annoying! Luckily, Sergey wrote the terrible-mDNS
responder, so that `ssh <hostname>.local` just works! How cool is
that!?
To be very clear, this does *not* teach the system to do mDNS queries
(.local hostname lookups). The terrible-mDNS-responder only responds
to other host's queries. (Those other hosts may be running Avahi or
sd-rd or Apple's mDNSResponder or LookupServer or ...)
The sources are over on
[[GitHub|https://github.com/bugaevc/terrible-mdns-responder]]. There
are no dependencies other than a libc. It's built with Meson and
licensed under AGPL v3+. It even comes with an awkward attempt at a
sysv init script! What's not to like?
# How to use it on Debian GNU/Hurd?
$ git clone git@github.com:bugaevc/terrible-mdns-responder.git
$ cd terrible-mdns-responder
$ meson setup build # you may need to apt install meson
$ ninja -C build
$ sudo ninja install -C build
$ sudo update-rc.d terrible-mdns-responder defaults
$ sudo update-rc.d avahi-daemon disable
$ sudo service terrible-mdns-responder start
# FAQ Why not use avahi?
Debian GNU/Hurd comes with Avahi in the default install (I believe).
Avahi has never worked for me (on the Hurd), and I doubt it has ever
worked for anyone else either. I *have* looked into the why (as in
spent hours debugging and patching it); I don't remember the
specifics, but I do remember that I concluded it won't be easy to make
it work. So, a dead end.
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