doc.FAQ.ISuspectThatMyUserIsExperiencingPortOrNetworkingProblemsWhatDoIDo

Do firewall restrictions prevent a user from downloading our components?

1. Test both HTTP and FTP links.
   
2. Provide a DAV link to the file.
   
3. Attempt to FTP the file to a user site.
   
4. Attempt to email components to the user.
   
5. Provide files to user via CD. (Requires Manager Approval.)

Do networking problems prevent transfer of a downloaded file to the target machine?

1. Urge the user to seek assistance from the on-site network administrator.
   
2. Tell the user to transfer the file(s) via CD or disk.

Do port problems prevent Multi-tier users from starting their Request Brokers?

1. Log in to the machine that contains the Multi-tier server components.
   
2. Use a text editor to open the oplrqb.ini file that resides in the /bin sub-directory of the installation.
   
3. Locate the [Protocol TCP] section.
   
4. Locate the Listen parameter. (Release 1.x and 3.x users locate PortLow .)
   
5. Close oplrqb.ini.
   
6. Run netstat -a.
   
7. If Listen or PortLow is occupied, assign a new port in oplrqb.ini.
   
8. If Listen or PortLow is not occupied, this may not be a port problem.

Do users not know what ports to pass in data source names or connect strings?

1. Inform users that the only OpenLink-specific ports appear in the [Protocol TCP] section of the server component's .../openlink/bin/oplrqb.ini file. Any other port would be gleaned from database-related configuration files or utilities.

Do firewalls prevent Multi-Tier clients from contacting Multi-Tier Request Brokers?

1. Login to the machine that contains the Multi-Tier server components.
   
2. Use a text editor to open the oplrqb.ini file that resides in the /bin sub-directory of the installation.
   
3. Locate the [Protocol TCP] section. For example:
   
   

   
   [Protocol TCP] 
   PingWatchdog = No 
   PingInterval = 600 
   ;IPAddress = 127.0.0.1 
   PortLow = 5000 
   PortHigh = 5020 
   

   
   
4. Make sure PortHigh is uncommented and set. PortHigh should equal PortLow + the number of concurrent connections granted by the license + a few extra ports.
   
5. Record the PortLow - PortHigh range.
   
6. Record the Listen port value. (Release 1.x and 3.x do not have Listen.)
   
7. Close oplrqb.ini.
   
8. Open the Listen and PortLow - PortHigh TCP ports on the firewall.
   
9. Open UDP port 60001 -- in addition to those above -- to accommodate Release 1.x and Release 3.x drivers.

Do Multi-Tier port settings restrict the number of concurrent connections?

1. Login to the machine that contains the Multi-Tier server components.
   
2. Use a text editor to open the oplrqb.ini file that resides in the /bin sub-directory of the installation.
   
3. Locate the [Protocol TCP] section. For example:
   
   

   
   [Protocol TCP] 
   PingWatchdog = No 
   PingInterval = 600 
   ;IPAddress = 127.0.0.1 
   PortLow = 5000 
   PortHigh = 5020 
   

   
   
4. Make sure PortHigh is uncommented and set. PortHigh should equal PortLow + the number of concurrent connections granted by the license + a few extra ports.
   
5. Save changes and exit the file.
   
6. Restart or reinitialize the Request Broker and test.