Transparent Proxy - F-SECURE INTERNET GATEKEEPER FOR LINUX 4.01 Administrator's Manual

10.2 Transparent Proxy

F-Secure Internet Gatekeeper for Linux can work as a transparent proxy for each service (HTTP, FTP,
SMTP, POP). In this way, you can perform virus scans for services without having to change settings
for each user.
The following table displays which settings you need to change for the product to work as a
transparent proxy. The settings apply when the host name of the mail server is assigned to the host
name of Internet Gatekeeper (through proxy and DNS settings).
Client settings POP
SMTP
HTTP/FTP
Cancel a virus scan
Network DNS
settings
Routing
Proxy Settings Parent server setting
IP address setting
NAT (iptables) setting
Kernel setting
F-Secure Internet Gatekeeper for Linux/Administrator's Guide
User Specific
name server
Any server
Server Specific
host server
name
Any server
Server Specific
host server
name
Any server
Proxy server name
Proxy mode
Install Mail
phase only server
DNS
change
○ ○
× ×
× ○
× ×
× ○
N/A N/A
× ×
Yes Yes
○ ×
○ ○
× ×
× ×
○ ○
○ ○
Transparent proxy
mode
Router Bridge
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
N/A N/A
○ ○
× ○
○ ○
× ×
× ×
○ ×
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