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What command line command do I use to lookup a domain address?

When looking at the man pages for nslookup and dig I can see a section saying that these utilities do not use the Mac OS methods of finding names.

So, what command should I be running?

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2 Answers 2

up vote 17 down vote accepted

nslookup, host, and dig are perfectly good DNS query tools in OS X, but they all query DNS directly rather than going through OS X's internal resolution system. As a result, they don't check the /etc/hosts file, or resolve Bonjour/mDNS names (those ending in .local). The standard (quick 'n dirty) way to test resolution is to use ping, since it'll resolve the address you give it through the usual system before attempting to ping it. If you want something intended for the purpose, use dscacheutil instead:

$ dscacheutil -q host -a name

$ ping
PING ( 56 data bytes
64 bytes from icmp_seq=0 ttl=57 time=57.258 ms
--- ping statistics ---
1 packets transmitted, 1 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 57.258/57.258/57.258/0.000 ms
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Either command works fine. Just because it's not using OS X's methods doesn't mean that it doesn't work. If you want to use "OS X methods" may I recommend Network Utility?

enter image description here

This may still call whois and just display it in the window.

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