communication between DNS Server and my computer


I have frequently svchost.exe trying to create a connexion from the DNS server to my computer. Usually, I block this communication manually and I don’t have special problem.

In order to understand, somebody can explain :
Why does this type of communication happen ? What is the goal ?
Do I have to Allow this type of communication ?

Thank you


Svchost.exe should be set for ‘Outgoing Only’.

Thanks John for your advice so for you I have to block the access between my DNS Server and my computer (from Svchost.exe). Do you have explanation on that ?

somebody can explain why svchost.exe try to make connection from my DNS Server to my computer ?