27 lines
1.1 KiB
Plaintext
27 lines
1.1 KiB
Plaintext
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# Erlang in openSUSE
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## Erlang Port-mapper Daemon and systemd
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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.
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For clustering, please, use ```/etc/systemd/system/epmd.socket.d/``` to configure interfaces to listen on. See man systemd.unit(5) for details.
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### Upgrading from sysvinit
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```/etc/sysconfig/erlang``` has no effect now, to configure EPMd use systemd capabilities instead.
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### Example 1: change port
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Create ```/etc/systemd/system/epmd.socket.d/port.conf``` with following content:
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```
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[Socket]
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ListenStream=
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ListenStream=127.0.0.1:4444
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```
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The first line is to discard vendor configuration. The second line will change the port number to listen on to 4444.
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### Example 2: enable external interface
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To enable accepting external connections to EPMd, create ```/etc/systemd/system/epmd.socket.d/port.conf``` with following content:
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```
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[Socket]
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ListenStream=
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ListenStream=0.0.0.0:4369
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```
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