Verify and troubleshoot TSO Client connectivity
Make sure the distributed system where the TSO Client server is executing is properly identified and the TCP/IP configuration supports the hostname specified. The TCP/IP configuration must support the resolution of the hostname in both directions: system name to IP address and IP address to system name.
Before you begin
Previous step: Configuring the TSO Client environment
Procedure
To verify the TSO Client environment definition, do these
steps:
- To verify that you have the correct hostname identified
in the HOST parameter in the environment definition file, issue the
following command from a command prompt on a different distributed
system (other than the system where the TSO Client server is executing):
nslookup hostnameIn this command, hostname is the value specified for the HOST parameter in the environment definition file. - If the connection is verified from another distributed
system, then verify the connection from the z/OS® system by issuing the following command
from ISPF:
TSO NSLOOKUP hostnameIn this command, hostname is the value specified for the HOST parameter in the environment definition file.
Results
- Set up the z/OS® system to communicate with the DNS server as described in the z/OS® Communications Server IP Configuration Reference, NSINTERADDR statement.
- Add the distributed host name to the local host table as described in the z/OS® Communications Server IP Configuration Guide, MAKESITE command.