Reverse Lookup
Broker relies on reverse DNS lookup to determine the numeric IP address and the host name. Reverse lookup is also applicable when you create and use a connection factory with Broker host details.
Use the following commands at the command prompt to verify that the reverse lookup gets the fully qualified domain name (FQDN).
Command | Description |
nslookup <hostname> | Displays the fully qualified domain name and IP address of:  DNS Host machine identified by hostname. |
nslookup <hostIP> | Displays the fully qualified domain name and IP address of: DNS Host machine identified by hostIP. |
nslookup -query=ptr <reverse IP>.in-addr.arpa <DNS> | Displays the fully qualified domain name of the host machine for which you specified the reverse IP address ( reversIP ) of the host machine and the fully qualified domain name of the DNS ( DNS ). |
Determine the fully qualified domain name and IP address of the DNS and the host machine by specifying the name of the host machine
C:\>nslookup host_machine
Server: dns.localhost.com
Address: 10.60.24.25
Name: host_machine.localhost.com
Address: 10.60.25.85
Determine the fully qualified domain name and IP address of the DNS and the host machine by specifying the IP address of the host machine
C:\>nslookup 10.60.25.85
Server: dns.localhost.com
Address: 10.60.24.25
Name: host_machine.localhost.com
Address: 10.60.25.85
Verify the fully qualified domain name and IP address of the DNS and host the machine by specifying the reverse IP address of the host machine and the fully qualified domain name of the DNS
C:\>nslookup -query=ptr 85.25.60.10.in-addr.arpa dns.localhost.com
Server: dns.localhost.com
Address: 10.60.24.2585.25.60.10.in-addr.arpa
name = host_machine.localhost.com