e849867ccc
- Fix instructions for changing address for epmd.socket service. The ListenStream option needs to be completely overriden otherwise the socket will be started with multiple ListenStream options and it will fail. OBS-URL: https://build.opensuse.org/request/show/647397 OBS-URL: https://build.opensuse.org/package/show/devel:languages:erlang:Factory/erlang?expand=0&rev=65
27 lines
1.1 KiB
Plaintext
27 lines
1.1 KiB
Plaintext
# 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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