Network Configuration Examples - F-SECURE INTERNET GATEKEEPER FOR LINUX 4.01 Administrator's Manual

5.2 Network Configuration Examples

F-Secure Internet Gatekeeper for Linux operates as a proxy server, which is located between the
client and the web and mail servers. The scenarios described here assume that Internet Gatekeeper
is installed in a typical network configuration like the one shown below.
The network configuration below shows that the gateway is located in a DMZ network. However,
installation in a DMZ is not necessary if connections from the Internet are not required.
Internet
External router
Internal router
Client
F-Secure Internet Gatekeeper for Linux/Administrator's Guide
mail.provider.com:External mail server (SMTP,POP)
DMZ(192.168.0.0/255.255.255.0)
mail.foo.com:Internal mail server (SMTP,POP)
dns.foo.com:DNS server (192.168.0.2)
fsigk.foo.com(192.168.0.99)
:Internet Gatekeeper server
Client Client
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