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Can anyone please explain me the difference between Host Name and Canonical Host Name?
I am currently using InetAddress class to fetch host name using the IP Address. I came across these 2 APIs.
So I am just wondering, which one I should opt for?
There are a few difference between the two:
getCanonicalHostName()will attempt to resolve the FQDN. Therefore, you would get foo.mycompany.com whereasgetHostName()might just return foo.getCanonicalHostName()will always do a reverse DNS lookup, whereasgetHostName()would return the stored hostname if you supplied one in theInetAddressconstructor.I suspect you will be wanting to use
getCanonicalHostName()if you are intending to map IP addresses to host names.