[erlang-questions] How to connect erlang nodes over IPv6 (on Ubuntu 10.04 server installations, Erlang R14B1)?

Boris Mühmer <>
Tue Feb 15 15:40:34 CET 2011


2011/2/15 Michael Santos <>:
> If clients are connected, the "kill" request doesn't actually do anything
> anymore (to have the old behaviour use the "-relaxed_command_check"
> switch).

Actually there was no client connected (erl couldn't connect, it died first).
Using an IPv4 "empd", I could submit a "kill" request and it terminated.
This wasn't possible with the IPv6 version.

> epmd has a hard coded check for IPv4 localhost in epmd_srv.c:
>
>    s->local_peer =
>    ((((unsigned) ntohl(si.sin_addr.s_addr)) & 0xFF000000U) ==
>        0x7F000000U); /* Only 127.x.x.x allowed, no false positives */

Thanks for pointing me there... I will have a look at it, when I am home.


  - boris


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