Frequently asked questions

Updated: 2019-09-28

Table of content

• What ports are exposed?
• What volumes can be be used?
• What Ubuntu version is installed?
• What Chromium version is installed?
• Is running in foreground supported?

What ports are exposed?

Containers created from the images expose the following TCP ports:

• port 5901 is used for access via a VNC viewer (e.g. TigerVNC or TightVNC)
• port 6901 is used for access via a web browser with HTML5 support (noVNC)

TOC

What volumes can be be used?

The images do not create or use any external volumes by default. However, the following folders make good mounting points:

• /home/headless/Documents/
• /home/headless/Downloads/
• /home/headless/Music/
• /home/headless/Pictures/
• /home/headless/Public/
• /home/headless/Templates/
• /home/headless/Videos/

The following mounting point is specific to Chromium:

• /home/headless/.cache/chromium/

Both named volumes and bind mounts can be used. More about volumes can be found in Docker documentation.

TOC

What Ubuntu version is installed?

You can check the actual Ubuntu version installed in the container by typing the following command into the terminal window:

lsb_release -a

The output will look similar to this:

No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04 LTS
Release: 18.04
Codename: bionic

TOC

What Chromium version is installed?

You can check the Chromium version installed in the container by typing the following command into the terminal window:

chromium-browser --version

The output will look similar to this:

Chromium 76.0.3809.100 Built on Ubuntu , running on Ubuntu 18.04

TOC

Is running in foreground supported?

Yes, containers created from this image can be used running in foreground (interactively). They even support several start-up options. Check the HOWTO page for more information.

TOC