Watchguard Firebox X1000, Reference Manual

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Packet Filter Services
Reference Guide 47
Gopher
Gopher is a data-retrieval protocol developed at the University of
Minnesota. As HTML has proliferated and Web browsers improved
Gopher servers replaced by Web servers. It is unlikely that you will ever
need to run a Gopher server.
Characteristics
• Protocol: TCP
• Server Port(s): 70 although servers can and are configured to use other
ports
• Client Port(s): greater than 1023
HTTPS
HTTPS is a secured and encrypted version of the HTTP protocol. The
client and the web server set up an encrypted session over TCP port 443.
Because this session is encrypted on both ends, the proxy cannot examine
packet contents; therefore, this icon enables a packet-filter service, not a
proxy.
N
OTE
The HTTPS service is needed only if you are hosting an HTTPS server, or
if you do not have an Outgoing, Filtered-HTTP, Proxy or Proxied HTTP
icon in your configuration.
Characteristics
• Protocol: TCP
• Server Port(s): 443
• Client Port(s): client
IMAP
Internet Mail Access Protocol (IMAP) is a method of accessing email or
bulletin board messages residing on a remote mail server as if they were
local. Thus e-mail stored on an IMAP server can be accessed from