QuasselCore on Archlinux

I just set up a quassel server on an Arch Linux box. There is a serious lack of documentation around it, though it is simple enough to set up I stumbled around a bit wondering why I could not connect and what I had done wrong so this post is about what I did to get it to work.

My aim was to set up a quassel core running on a headless server, so no need for the client or any of the GUI. The quassel package in Arch Linux contains both the client and the core and pulls in far to many dependencies for a headless server. Lucky there is a quasselcore package in AUR that fits my needs perfectly. Installation is simple enough, use packer, yaourt or simply download and build the package manually:

wget https://aur.archlinux.org/packages/qu/quasselcore/quasselcore.tar.gz
tar -xf quasselcore.tar.gz
cd quasselcore
makepkg -si

Unfortunately by default quasselcore on Arch Linux only lessens to localhost by default. To change this edit /etc/conf.d/quassel to the following


This allows quassel to listen to any ip address.

Now just start the service and set it to run on boot

sudo systemctl enable quassel
sudo systemctl start quassel

And that is it on the server! Initial configuration is all done on the first connection from the client, no need to set up a username or password beforehand  And on this note you will want to do this quickly after starting it and preferably before exposing it to the internet.

To start the first run wizard just launch quasselclient on you desktop and add a new host with the following details

Account name: Any name you wish to give the core (for the client only)
Hostname: The hostname or ip of the server
Port: The default is 4242, use that unless you have changed it
User: The name of the user you want to connect via (Might not matter on the first connection)
Password: The password of that user (does not matter on the first connection)

and click ok to connect. The first run wizard should now launch, just follow it through to set up the admin user that you will use from now on to connect to the quassel server.

Enable SSL

This is important if you wish the communication between the core and the client to be encrypted, but is optional if you are just using it over a local network. The quasselcore package already has ssl enabled in the build script, so to enable it all you need to do is generate the certificates:

sudo -u quassel openssl req -x509 -nodes -days 365 -newkey rsa:1024 -keyout ~quassel/quasselCert.pem -out ~quassel/quasselCert.pem

and then restart quassel:

sudo systemctl restart quassel

Add additional users

After set up you can add new users by logging into the server and running

sudo quasselcore --configdir=/var/lib/quassel --add-user

and filling in the appropriate information when prompted. Note that there is no easy way to delete a user once added.

You can change a forgotten password by running

sudo quasselcore --configdir=/var/lib/quassel --change-userpass=USERNAME