User's Manual

ProSecure Web/Email Security Threat Management (STM) Appliance Reference Manual
Performing Network and System Management 3-7
v1.0, September 2009
4. Click Apply to save your settings. Changing any settings in the Session Timeouts section of
the screen requires the STM to restart. If you click Reset, the STM restarts to restore the
default network settings.
Configuring the HTTP Proxy Settings
If you have used the Setup Wizard, you might have already configured an HTTP proxy; the HTTP
Proxy screen allows you to modify these settings.
If the STM is installed behind an HTTP proxy, you might need to specify the HTTP proxy settings
for the STM to connect to the Internet. The settings on the HTTP Proxy screen affect Web category
filtering, Distributed Spam Analysis, and software updates.
Do You Want to
Enable per-user
Session Limits?
(continued)
Limit Value Depending on the selection in the Limit Type field, this value is a
percentage or an absolute number.
The Total Number of Packets Dropped field, which you cannot configure, shows the
total number of packets that are dropped because the session limit has been
exceeded.
Session Timeouts
If a session goes without data flow longer than the configured values, the session is terminated.
TCP Timeout The time in seconds after which a TCP session without data flow is terminated. The
default time is 1200 seconds.
UDP Timeout The time in seconds after which an UDP session without data flow is terminated. The
default time is 180 seconds.
ICMP Timeout The time in seconds after which an ICMP session without data flow is terminated.
The default time is 8 seconds.
Table 3-2. Session Limits Settings (continued)
Setting Description (or Subfield and Description)