Matwey Kornilov 8d3d9fdcd5 Accepting request 697139 from home:gsantomaggio_suse:branches:devel:languages:erlang:Factory
- Update to 21.3.6:
- Changes for 21.3.6:
 * http://erlang.org/download/OTP-21.3.6.README
 * ssl: With the default BEAST Mitigation strategy for TLS 1.0
   an empty TLS fragment could be sent after a one-byte
   fragment. This glitch has been fixed.

OBS-URL: https://build.opensuse.org/request/show/697139
OBS-URL: https://build.opensuse.org/package/show/devel:languages:erlang:Factory/erlang?expand=0&rev=81
2019-04-26 08:49:33 +00:00
2012-12-03 23:33:33 +00:00

# 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.

### Example 1: change port
Create ```/etc/systemd/system/epmd.socket.d/port.conf``` with following content:
```
[Socket]
ListenStream=
ListenStream=127.0.0.1:4444
```
The first line is to discard vendor configuration. The second line will change the port number to listen on to 4444.

### Example 2: enable external interface
To enable accepting external connections to EPMd, create ```/etc/systemd/system/epmd.socket.d/port.conf``` with following content:
```
[Socket]
ListenStream=
ListenStream=0.0.0.0:4369
```
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