Server1 download update from microsoft update. You have Server2 that must syncronize update from Server1. Have firewall separate between Server1 and Server2.
Which port should to open on Server2 to syncronize ?
Alternative Question
"you have windows server update server named server 1 is synchronize from microsoft. you plan to deploy new wsus server name server 2 will synchronize update from server 1 . identify witch port must be open?
It must be avoided that the configuration of the name servers of the zone traincert.de must be adapted when it changes.
The administrative expenses for the maintenance and care of your solution should turn out as low as possible.