User guide

Packet Filter Services
Reference Guide 69
provides strong authentication and secure (encrypted) communications.
WatchGuard recommends the use of ssh in lieu of more vulnerable
protocols like telnet, rssh, and rlogin.
If you use ssh, you should also use its strong authentication mechanisms.
Strong encryption mechanisms are available for U.S. customers, Canadian
customers, and customers who have been approved for use of strong
encryption by WatchGuard and/or the U.S. Government. If you would
like to use strong encryption (128 bit, 3DES) or IPSec, please contact
WatchGuard Technical Support.
Unix versions are available from ftp.cs.hut.fi (see ftp://ftp.cs.hut.fi/pub/
ssh), and information on versions for Windows can be found at
DataFellows (http://www.datafellows.com).
Characteristics
•Protocol: TCP
• Server Port(s): 22
• Client Port(s): less than 1024
• RFC: No number yet, but see:
http://www.cs.hut.fi/ssh/
Common Scenario
Description
There are one or more ssh servers on the Trusted network.
Icons in the Services Arena
An ssh icon – Allowing Incoming To the desired Trusted servers,
and Allowing Outgoing From Any To Any.
syslog
syslog is a service used to log operating system events on Unix hosts. The
most common reason to enable syslog data on a firewall is to collect data
from a host outside the firewall.
Because the syslog port is blocked by default, to allow one log host to
collect logs from multiple Fireboxes:
• Remove port 514 from the Blocked Ports list