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Title: High quality / low latency VOIP server with umurmur/Mumble on
OpenBSD
Author: Solène
Date: 04 July 2019
Tags: openbsd gaming
Description:
Hello,
I **HATE** Discord.
Discord users keep telling about their so called **discord server**,
which is
not dedicated to them at all. And Discord has a very bad quality and a
lot of
voice distorsion.
Why not run **your very own mumble server** with high voice quality and
low
latency and privacy respect? This is very easy to setup on OpenBSD!
Mumble is an open source voip client, it has a client named Mumble
(available
on various operating system) and at least Android, the server part is
murmur
but there is a lightweight server named umurmur. People authentication
is done
through certificate generated locally and automatically accepted on a
server,
and the certificate get associated with a nickname. Nobody can pick the
same
nickname as another person if it's not the same certificate.
### How to install?
# pkg_add umurmur
# rcctl enable umurmurd
# cp /usr/local/share/examples/umurmur/umurmur.conf /etc/umurmur/
We can start it as this, you may want to tweak the configuration file
to add a
password to your server, or set an admin password, create static
channels,
change ports etc....
You may want to increase the `max_bandwidth` value to increase audio
quality,
or choose the right value to fit your bandwidth. Using umurmur on a DSL
line is
fine up to 1 or 2 remote people. The daemon uses very little CPU and
very
little memory. Umurmur is meant to be used on a *router*!
# rcctl start umurmurd
If you have a restrictive firewall (I hope so), you will have to open
the ports
TCP and UDP 64738.
### How to connect to it?
The client is named Mumble and is packaged under OpenBSD, we need to
install it:
# pkg_add mumble
The first time you run it, you will have a configuration wizard that
will take
only a couple of minutes.
Don't forget to set the sysctl kern.audio.record to 1 to enable audio
recording, as OpenBSD did disable audio input by default a few releases
ago.
You will be able to choose a push-to-talk mode or voice level to
activate and
quality level.
Once the configuration wizard is done, you will have another wizard for
generating the certificate. I recommend choosing "Automatically create
a
certificate", then validate and it's done.
You will be prompted for a server, click on "Add new", enter the name
server so
you can recognized it easily, type its hostname / IP, its port and your
nickname and click OK.
Congratulations, you are now using your own private VOIP server, for
real!
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