On 12/09/18 16:29, Florian Bergmann wrote:
On the other hand I feel given the documentation, passing the `ip_address` would
be the right thing to do, so I am wondering if I am missing something very
obvious here (especially given that the code seems to be unchanged for 18 
years).
Whatever the docs say, turning the hostname into an IP address and working with that would be incorrect.

Say we have a server, 'fred.weasley.example.com', which is also known as 'www.example.com'. Its reverse DNS pointer is 'fred.weasley.example.com'. Now, if we have 'example.com' on our DNS search path, the FQDN of 'www' is 'www.example.com', while the FQDN derived from the IP would be 'fred.weasley.example.com'.

Right?
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