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SONICWALL SONICOS STANDARD 3.0 ADMINISTRATOR’S GUIDE
191
Firewall > Services
C
HAPTER
33
Chapter 33: Configuring Custom Services
Firewall > Services
Services are anything a server provides to other computers. A service can be as simple as the
computer asking a server for the correct time (NTP) and the server returns a response. Other types of
services provide access to different types of data. Web servers (HTTP) respond to requests from
clients (browser software) for access to files and data. Services are used by the SonicWALL security
appliance to configure network access rules for allowing or denying traffic to the network.
User Defined (Custom) Services
If protocol is not listed in the Predefined Services table, you can add it to the User Defined (Custom)
Services table.