avast wanted to accept connectons from the internet...
do i accept?
No, avast do not need server rights... But, maybe it's just checking the state of your installation to allow you to update. Can you try what happens if you block it?
avast antivitus service
avast setup
and avast email scanner is all asking to acces the internet
is this right?
All right. Without access you won't be able to update.