Configure Server-side Firewalls for Multi-Tier Connectivity

The OpenLink Request Broker listens on TCP PortLow. And, it opens the remainder of the ports between PortLow and PortHigh for Database Agents. If you use OpenLink -- in conjunction with a firewall -- you must enable these ports on your firewall.

Be advised, PortHigh and PortLow appear in the [Protocol TCP] section of your Session Rules Book. To view the Rules Book, use a text editor to open the oplrqb.ini file which resides in the /bin sub-directory of your OpenLink server components installation. Then, locate the following section:

[Protocol TCP]
PingWatchdog       = No	
PingInterval           = 600	
;IPAddress             = 127.0.0.1    
PortLow                 = 5000
PortHigh	       = 5025
Listen                      = 5000

Finally, open UDP port #60001 on the firewall, as well. Prior to OpenLink release 6.x, this port was used by the Request Broker to broadcast its availability. Currently, this port is used by the OpenLink License Manager.