To enable the display of Web pages when
a firewall exists between desktop computers and the computer that
is hosting SAS, a firewall rule must be added that allows a Web browser
to connect to SAS. The firewall rule specifies a range of network
ports for which SAS remote browsing connections are allowed. Contact
the appropriate system administrator who can select and configure
a range of network ports for remote browsing. The range depends on
the number of simultaneous SAS users. A value of approximately three
times the number of simultaneous SAS users should reserve a sufficient
number of network ports.
After the firewall rule
is added, SAS must be configured to listen for network connections
in the network port range. Normally, SAS selects any free network
port, but the HTTPSERVERPORTMIN and the HTTPSERVERPORTMAX system options
limit the network ports that SAS selects. Add these system options
to your SAS configuration file. Set HTTPSERVERPORTMIN to the lowest
port in the network range. Set HTTPSERVERPORTMAX to the highest port
in the network range. For example, if the system administrator defined
a network port range of 8000 to 8200, the system options would be
set as follows:
httpserverportmin=8000
httpserverportmax=8200
After these system options
are set, desktop computers can display Web pages. If there is an insufficient
number of ports or if the system options are specified incorrectly,
a message appears in the SAS log.