Why does my name resolution hit the DNS even with a hosts file entry?

Posted by Volomike on Ask Ubuntu See other posts from Ask Ubuntu or by Volomike
Published on 2011-03-08T04:15:31Z Indexed on 2011/03/08 8:19 UTC
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I'm running Ubuntu 10.04.2 LTS Desktop. Being a web developer, naturally I created a "me.com" in my /etc/hosts file. Unfortunately, my name resolution is going out to the DNS before first checking my local hosts entry and I can't figure out why.

The end result is that if my /etc/resolv.conf contains "nameserver 127.0.0.1" in there first, then I get a response back in my web browser from me.com (local) within less than a second. But if I don't have that entry, then my response takes sometimes as much as 5 seconds if my ISP is a little slow.

The problem was so troublesome that I actually had to file a question here (and someone resolved it) for how to automatically insert that entry into /etc/resolv.conf. But one of the users (@shellaholic) here highly recommended (and commented back and forth with me about it) that I should file this question.

Do you know why my workstation's name resolution has to hit the DNS server first before hitting my /etc/hosts file entry? For now, I'm using the resolv.conf trick (see link above).

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