# Erlang in openSUSE
## Erlang Port-mapper Daemon and systemd

Erlang Port-mapper Daemon in openSUSE uses systemd socket-activation. In order to fulfill security considerations, EPMd listens on loop-back interface by default. This is enough to run rabbitmq-server, ejabberd and user-started beam processes.

For clustering, please, use ```/etc/systemd/system/epmd.socket.d/``` to configure interfaces to listen on. See man systemd.unit(5) for details.

### Upgrading from sysvinit
```/etc/sysconfig/erlang``` has no effect now, to configure EPMd use systemd capabilities instead.