Hello Anton,
>>> Recently we have migrated the host to a new data center to solve
>>> long-existing capacity problems. Unfortunately, we just fond that >>> ssh (port 22) access that we use for mirroring is not always
>>> working from the world due to firewalling being in place.
the way I see it (all) other mirrors have the same problem. They are outdated too. Just for the record.
Kind regards
Jan Siml