mac osx - Proper way to disable Apache listening on localhost

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I manage a few Mac OSX XServes for
production websites and have recently run into an issue dealing with the server
resolving the DNS of some of the sites. Further investigation revealed that httpd.conf
was configured to listen on all IPs (port 80), but the virtual host configurations only
applied to the actual IP for the domain (not
localhost).

eg (freehand configuration, probably
syntactically incorrect and missing irrelevant options):

in
httpd.conf:
Listen 80

in
domainA:80.conf:
ServerName
domainA.com

Now, in the /etc/hosts file, it had
this entry:
127.0.0.1 localhost
127.0.0.1
domainA.com

what would happen when
domainB.com called out to domainA.com on the same machine, it would use the localhost IP
address. Therefore, instead of using the correct virtualHost configuration, it used the
default configuration (this took me so damn long to figure out, but it makes perfect
sense)

I don't really have a need to access the
domains from localhost, so my question is: What's the best way to disable apache from
trying to access the configuration using
127.0.0.1?

1) Comment out the '127.0.0.1
domainA.com' entry in /etc/hosts (this is what I did to fix it temporarily, but is this
really a good solution)?

2) Update the
httpd.conf file to listen only to the appropriate 1.2.3.4 IP address (Listen 1.2.3.4:80)
?

Sidenote: I went with option 1 temporarily
because I use a Tenon configuration and was unsure of the ramifications of changing
their default value on the 'Listen'

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class="normal">Answer

Your option 2 is the correct way to go. You'll probably find a
Listen 80 statement in your httpd.conf which is saying listen
on port 80 on all available interfaces. Changing it to Listen
1.2.3.4:80 will restrict it to that address.