Debugging

This section shows the steps to debug the TAFC configuration files.

Step1: Checking that Configuration Files are Set up on both Servers

Procedure

1. Run tafc_properties on the local server. Confirm that the local tafc.ini file is found and contains the right parameters.
2. Log onto the remote server and repeat step 1.

Step 2: Checking that confchk can Compare Values on the both Machines

Procedure

1. Start TAFC on the remote server. Confirm that it gets as far as Listening for configuration requests…. If not, fix any failing TICs on the remote machine.
2. Run confchk –v –s OSLevels. Confirm that the remote system replies. If the remote system fails to reply, then check:
   1. Is there basic network functionality between the machines? Run ping.
   2. If the value of TTL value specified in your confchk calls high enough? Check how many routers are between two systems. Check that they support UDP multicast forwarding.
   3. Any firewalls have the confchk UDP port (default 20003) open.

Step 3: Checking that Configuration Files are Compatible

Procedure

1. Start TAFC on the local server.
2. Confirm that it gets as far as Listening for configuration requests…. If not, fix any failing TICs on the local machine.