Firewall

In order to improve the IT-safety of the university’s net the network areas in the dormitories of the Studentenwerk Hannover are organized as client-network.

1. Rejection of incoming connections
   
   External data traffic will already be rejected at the Gateway-Firewall of the LUIS. That means that the computers in the dormitories cannot offer any (potentially unintended through safety problems caused) server services for the internet and are not available from the outside.
2. Filtering of outbound connections
   
   Outward connections when surfing the web or similar use of the internet are generally let pass. There are only a few exceptions, which affect only few protocolls that are normally not meant for the internet.