Configuring Your Firewall For Connections To Public Im Network Servers - Symantec 10547829 - Mail Security For Smtp 5.0 Smb Installation Manual

24 Understanding system requirements
Ports used by Symantec Mail Security

Configuring your firewall for connections to public IM network servers

URL
pool.ntp.org
clock.isc.org
time.nist.gov
liveupdate.symantecliveupdate
.symantec.com
liveupdate.symantec.com
update.symantec.com
To enable IM filtering, you must configure your firewall to allow port connections
from your IM-filtering Scanner to the public IM network servers that you use.
Port connections to these servers from all other servers within your corporate
network should be blocked.
Table 2-2 lists the ports for which you must configure your firewall to allow
outbound connections to the Internet.
Firewall port connection requirements
Table 2-2
IM Network
AIM
MSN Messenger
Yahoo! Messenger
Google Talk
In addition to these firewall changes, changes to your DNS configuration are also
required to enable IM filtering.
See "Configuring your DNS for IM filtering"
Protocol Port Description
UDP 123 Used for the appliance to sync time
UDP 123 Used for the appliance to sync time
UDP 123 Used for the appliance to sync time
TCP 80 Default automatic antivirus
updates
TCP 80 Default automatic antivirus
updates
TCP 21 Rapid response antivirus
Ports
5190
1863
5050, 80
5222
on page 27.