1. Identify all nodes in the path - request initiator till the last node of the processing path
2. Test the connectivity between every two successive nodes(virtual or physical machines) separately to spot the chain-breakage
3. Fix the breakages and confirm the response
Ways to test connectivity between successive nodes:
1. Verify the logs for exceptions- Server and Application.
Eg: If the Ticket-Reservation system is running on Tomcat, the Tomcat is the server and Ticket-Reservation is the application.
2. Check if the network related nodes such as Firewalls, Load-balancers etc - are up and running.
3. Check if the database is running.
4. Connectivity test between one machine to another
Eg: If Client is on Node-1 and Server is on Node-2, and the client not receiving the response, then run the following:
ping
telnet
curl
the above will spot if there are any firewall blockers etc.
2. Test the connectivity between every two successive nodes(virtual or physical machines) separately to spot the chain-breakage
3. Fix the breakages and confirm the response
Ways to test connectivity between successive nodes:
1. Verify the logs for exceptions- Server and Application.
Eg: If the Ticket-Reservation system is running on Tomcat, the Tomcat is the server and Ticket-Reservation is the application.
2. Check if the network related nodes such as Firewalls, Load-balancers etc - are up and running.
3. Check if the database is running.
4. Connectivity test between one machine to another
Eg: If Client is on Node-1 and Server is on Node-2, and the client not receiving the response, then run the following:
ping
telnet
curl
the above will spot if there are any firewall blockers etc.
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