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tcp/ip address v. DNS name

 
Dave Segal
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I need to compare the Connection used by a DataSource against a set of DriverManager parameters to determine if they are "equivalent". I do this by comparing the hostname, datbasename, and port. My problem is that I am given the DriverManager parameter DNSname but when I retrieve the hostname from the DataSource Connection, I am given the TCP/IP address.

Can anybody tell me how to translate the DNSName into it's TCP/IP address so that I can compare on these properties?
 
Paul Misoni
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To resolve the IP address to then DNS name, ping with the -a argument.

example: ping -a 64.78.181.41

If it can resolve the address, it will return:

Pinging tut.ejip.net

Of course, this doesn't work well the other way, as multiple DNS names can point to the same IP address.

Hope this helps somewhat.
 
It is sorta covered in the JavaRanch Style Guide.
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