Am I doing something wrong?

./mc-router -debug -connection-rate-limit 100 --mapping "mc.sientys.cloud=10.0.0.1:25566,mc.goldensmp.net=10.20.220.13:25565"

I am running mc-router standalone and I keep getting WARN[0004] Unable to find registered backend serverAddress=mc.sientys.cloud

same with IPs and all other domains.

Start by reproducing the standalone invocation with the supplied --mapping values and -debug flag. Trace the source of the “Unable to find registered backend” warning and verify how the mapping is parsed and looked up; done means the configured server address resolves to its backend or the expected configuration error is made clear.

Written by the indexing model from the issue text.