How do I get my computer's fully qualified domain name in Python?

Question

I know I can use platform.node() to get my computer's network name:

>>> import platform
>>> platform.node()
'MyComputerName'

But what I really want is something that will work similar to the following:

>>> get_full_network_domain_name()
'MyComputerName.it.na.mycompany.com'

Does something like this exist?

Sven Marnach · Accepted Answer · 2012-07-20 13:08:36Z

70

The fully qualified domain name is returned by socket.getfqdn().

answered Jul 20, 2012 at 13:08

Sven Marnach

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7 Comments

Jace Browning Over a year ago

Thanks, "fully qualified domain name" was the phrase I was looking for!

Daniël van Eeden Over a year ago

For me this doesn't yield the same result as hostname -f on the shell. So be careful.

Daniël van Eeden Over a year ago

@semente , hostname -f does it like this: socket.getaddrinfo(socket.gethostname(), 0, flags=socket.AI_CANONNAME)[0][3] and getfqdn() seems to lookup the hostname in /etc/hosts and uses the first entry which contains a dot. For me the hostname -f returns 'daniel-thinkpad' and getfqdn() returns localhost6.localdomain6

Florian Brucker Over a year ago

@DaniëlvanEeden: Thanks! However, my version of getaddrinfo doesn't support keyword arguments, so I had to use socket.getaddrinfo(socket.gethostname(), 0, 0, 0, 0, socket.AI_CANONNAME)[0][3] instead.

Nathan McKaskle Over a year ago

This does not work reliably at all. Half the time it comes back with just the hostname when I see that the hostname it comes back with is easily looked up by nslookup and comes back with an fqdn.

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