If you have windows client PC\'s or even if you don\'t, find the \"hosts\" file. You can create your own virtual DNS testing environment using host files as it was done in the eraly days. Look in the etc/ folder this is where it should be.
Example Host File;
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# Copyright © 1993-1999 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a \'#\' symbol.
#
# For example:
#
# 102.54.94.97 rhino.acme.com # source server
# 38.25.63.10 x.acme.com # x client host
127.0.0.1 localhost
192.168.0.1 datanet
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Create a line under the examples that says something like this.
192.168.0.10 MyServerName
The first line being the IP of your box that Apache is installed on and MyServerName being the actual name of the server that Apache is running on.
copy that or re-create that file to each client PC or on the server.
change your primary DNS server info that is bound to your NIC to either point to the Apache server if you created the new host file there or the client PC its self with the host file. This will allow the PC to look a local address, find the hosts file, and resolve the name to IP just like any DNS server out there.
You will now be able to type in \"MyServerName\", meaning, the actual name of the server that apache is running on and get full DNS resolution.
You can extend this concept to create your own internal www.xxx.com test environment as long as you are not hitting any live DNS servers on the net.
Hopes this helps, typing ip\'s to test your site gets old.
Shane J