Ok, "as usual" I found something looking like part of the solution 5 Min
later...
https://wiki.jenkins.io/display/JENKINS/Remote+access+API
Discovering Jenkins on the network
Jenkins instances listen on UDP port 33848. Whenever a UDP packet is
received, it will respond with a short XML fragment th
Hello,
our CI system is reachable under different names (by ssh port forwarders
running on some machines - background/reason below).
So you can access the system as something like
http://system1.domain:
and
http://system2.domain:
Actually Jenkins is running e.g. on "system1".
Jenkins its
