Don't taunt the "domain" setting

The Network preferences panel includes two little text boxes marked „Host name“ and „Domain name.“ The host name box lets you give your machine a friendly name so your box can be accessed by others on a network without them having to enter your IP address (it also gives you the opportunity to stroke your ego by entering something so clever and obscure that only you actually get it).
The domain name field, however, is NOT all fun and games. While networking will still work, name server lookups may take much longer on some machines in some network configurations. Enter a domain name only if your machine is physically attached to an actual domain (i.e. dial-up users should not enter anything here, and only some LAN users should).



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