Skip to content


This chapter describes how to install Flussonic Media Server. Prior to installation, please read the System requirements page.


By default, Flussonic Media Server uses HTTP port 80. Prior to installation, make sure that this port is not listened by other applications in your OS.


Administrator's password and login

On the start page Flussonic asks you to enter the license key that you have received and the Administrator's username and password that you are actually going to use.


Both login and password must NOT include any of the following characters: @, ;, #, [, \, /, =

flussonic ui

You can later change the Administrator password by using the web interface (Config > Access):

Install Flussonic


In Flussonic versions prior to 20.10 immediately after the installation change the default login and password flussonic and letmein! and specify your own login and password. In order to change the Administrator password, you can edit the config file /etc/flussonic/flussonic.conf and change the value of the edit_auth directive.

When you are done manually editing the config file, run the following command:

service flussonic reload

Installing on Ubuntu

Supported architectures: amd64, arm64. The i686 architecture is not supported.

Required OS version: Ubuntu 18.04 or 20.04.

Installing Flussonic Media Server using Debian package:

wget -q -O /etc/apt/trusted.gpg.d/flussonic.gpg;
echo "deb binary/" > /etc/apt/sources.list.d/flussonic.list;
apt update;
apt -y install flussonic flussonic-transcoder;

Note. The package flussonic-transcoder is necessary only if you plan to use the CPU to perform transcoding.

To learn what packages you can install, use the following command instead of the command above:

apt-get -y --install-recommends --install-suggests install flussonic

Now you are ready to start Flussonic Media Server:

service flussonic start

Open in the browser the Flussonic's web interface http://FLUSSONIC-IP:80/, (change FLUSSONIC-IP to the real address of the hosting server to which you installed the software.

In the web interface http://FLUSSONIC-IP:80/ paste the license key that you have received. Also, set the Administrator's login and password.

To check whether your Flussonic installation is correct, run the following command:

service flussonic status

Now installation is complete, and Flussonic Media Server is ready to operate. However, for best performance with a large number of clients, we suggest you do some system tuning.

You also need to completely disable swap, as its presence is not compatible with video streaming. If the server doesn't have enough RAM, it can't be extended by swap.

Flussonic configuration file

Starting from version 20.10, Flussonic is delivered without a ready-made configuration file. When you start the web interface for the first time and save the entered username, password and license key, a configuration file is automatically created and it contains the default settings (the path to the Pulse database and session log).

If you have experience using Flussonic, you can also prepare this file manually, specify the login and password there and copy it to the server immediately after installation.

Installing RPM on CentOS/RedHat and the like


We strongly recommend that you avoid using RPM-based distributions: CentOS, RedHat, Suse, etc. This is due to a number of reasons. We do not provide technical support on issues concerning RPM packages and distributions to users who have purchased less than 10 user licenses.

Installing Flussonic Media Server from Yum repository:

cat > /etc/yum.repos.d/Flussonic.repo <<EOF
yum -y install flussonic-erlang flussonic flussonic-transcoder
service flussonic start

Updating Flussonic Media Server

To install updates, simply update the packages and install Flussonic:

apt-get update
apt-get -y install flussonic
service flussonic restart

Which version is currently installed?

dpkg -l | grep flussonic

How to revert to the previous version?

It is sometimes necessary to install the previous version. To do this, you must specify the exact version of the flussonic package and its dependencies.

Suppose you want to revert to version 19.06.1.

  1. Get dependencies' versions by using apt-cache:

apt-cache show flussonic=19.06.1  | egrep '^(Depends|Suggests):'

Result will be like:

Depends: flussonic-erlang (=21.3.6) | flussonic-erlang_21.3.6, flussonic-transcoder-base (=4.6.2) | flussonic-transcoder-base_4.6.2
Suggests: flussonic-transcoder (>= 4.5)

  1. Install packages with these versions:

apt-get install flussonic=19.06.1 flussonic-erlang=21.3.6 flussonic-transcoder-base=4.6.2


Before installing packages create a backup of the configuration files in the directory /etc/flussonic and .db files in the directory /opt/flussonic/priv (this directory is used by default, you can change the path in the configuration file).


We cannot guarantee the server's operation on those Linux distributions for which we do not provide installation packages.

Starting and stopping Flussonic

Use the following commands:

to start the service:

service flussonic start

to stop the service:

service flussonic stop

to restart the service:

service flussonic restart

to reconfigure with client connections live:

service flussonic reload

Running Flussonic in a Docker container

Flussonic Media Server is available for installation to Docker containers.

Installation in Docker will allow you to run Flussonic on different operating systems if they support Docker, not just Ubuntu. It also allows you to take full advantage of Docker's benefits: isolation, security, container orchestration, and more. We recommend Docker for testing and experimentation, for small scape services, and when you use only TCP/HTTP protocols.

How to run Flussonic in a container:

docker run -p 80:80 -v /etc/flussonic:/etc/flussonic flussonic/flussonic


Make sure that port 80 is not used by other applications.


We do not recommend using the following Flussonic functions when it runs in a container, because additional configuration is required:

  • UDP ingest (IGMP)
  • Hardware transcoding (NVENC,QSV)
  • WebRTC protocol

Rolling release updates

We release a new Flussonic version every month, but we also have a repository with rolling updates (that are released between two major releases). Every day we update it with new Flussonic builds that contain new features and bug fixes. Rolling updates are Release Candidate versions that we run in our laboratory and offer to some customers who want to get updates before the next official release comes out.

These instructions will help you to install a rolling update, return back to the major release, back up the configuration, and prepare the information for the support team if the installation has failed.

How to install a rolling update

Remove the currently installed version of Flussonic and its dependencies:

apt remove flussonic

Change the repository to the one with rolling updates and install Flussonic:

echo "deb master/" > /etc/apt/sources.list.d/flussonic.list;
apt update;
apt install flussonic;
service flussonic restart

How to return to the major release

Remove the currently installed version of Flussonic and its dependencies.


Before removing the packages, create a backup of the configuration files located in the directory /etc/flussonic and the .db files in the directory /opt/flussonic/priv (this directory is used by default, you can change the path in the configuration file).

apt remove flussonic

Change the repository to the one with official releases and install Flussonic:

echo "deb binary/" > /etc/apt/sources.list.d/flussonic.list;
apt update;
apt install flussonic;
service flussonic restart


If Flussonic fails to start, run the commands systemctl status flussonic.service and journalctl -xe and send their output to our technical support team.