After installing Guacamole via App Center, a new bridge is created in the system:
Kernel-IP-Routentabelle Ziel Router Genmask Flags Metric Ref Use Iface 0.0.0.0 172.16.1.1 0.0.0.0 UG 0 0 0 eth0 172.16.0.0 0.0.0.0 255.255.255.0 U 0 0 0 br-e8927f351c60 172.16.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 172.17.0.0 0.0.0.0 255.255.0.0 U 0 0 0 docker0
Unfortunately, I happen to use a 172.16.0.0/24 network (via router). Thus, the Univention server does not have any outside network connection.
I found Guacamole’s IP configurations in the two config files for each container
var/lib/docker/containers/CONTAINERIDs/config.v2.json where IPs like 172.16.0.1, 172.16.0.2, 172.16.0.3 are specified. Also, in UCR I can find
appcenter/apps/guacamole/ip with the value
172.16.0.0/24. I tried to change the IPs / networks at both these entries, but the bridge keeps reappering with the same network. Also, the changes in config.v2.json are reverted after reboot.
Where and how can I change Guacamole’s docker network to something outside my network?
Thanks in advance!