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Setting up a local web server on OS X 10.8 "Mountain Lion"

Here is my definitive guide to getting a local web server running on OS X 10.8 “Mountain Lion”. This is meant to be a development platform so that you can build and test your sites locally, then deploy to an internet server. This User Tip only contains instructions for configuring the Apache server, PHP module, and Perl module. I have another User Tip for installing and configuring MySQL and email servers.

 

Note: This user tip is specific to OS X 10.8 “Mountain Lion”. Pay attention to your OS version.

Another note: These instructions apply to the client versions of OS X, not Server. Server does a few specific tricks really well and is a good choice for those. For things like database, web, and mail services, I have found it easier to just setup the client OS version manually.

 

Requirements:

  1. Basic understanding of Terminal.app and how to run command-line programs.
  2. Basic understanding of web servers.
  3. Basic usage of vi. You can substitute nano if you want.

Optional:

  1. Xcode is required for adding PHP modules.

 

Lines in bold are what you will have to type in. Lines in bold courier should be typed at the Terminal.

Replace <your short user name> with your short user name.

 

Here goes... Enjoy!

 

To get started, edit the Apache configuration file as root:

sudo vi /etc/apache2/httpd.conf

 

Enable PHP by uncommenting line 118, changing:

#LoadModule php5_module libexec/apache2/libphp5.so

to

LoadModule php5_module libexec/apache2/libphp5.so

(If you aren't familiar with vi, go to line 118 by typing "118G" (without the quotes). Then just press 'x' over the '#' character to delete it. Then type ':w!' to save, or just 'ZZ' to save and quit.)

 

If you want to run Perl scripts, you will have to do something similar:

 

Enable Perl by uncommenting line 117, changing:

#LoadModule perl_module libexec/apache2/mod_perl.so

to

LoadModule perl_module libexec/apache2/mod_perl.so

 

Lion and later versions no longer create personal web sites by default. If you already had a Sites folder in Snow Leopard, it should still be there. To create one manually, enter the following:

mkdir ~/Sites

echo "<html><body><h1>My site works</h1></body></html>" > ~/Sites/index.html.en

 

While you are in /etc/apache2, double-check to make sure you have a user config file. It should exist at the path: /etc/apache2/users/<your short user name>.conf. That file may not exist and if you upgrade from an older version, you may still not have it. It does appear to be created when you create a new user. If that file doesn't exist, you will need to create it with:

 

sudo vi /etc/apache2/users/<your short user name>.conf

 

Use the following as the content:

<Directory "/Users/<your short user name>/Sites/">

    AddHandler perl-script .pl

    PerlHandler ModPerl::Registry

    Options Indexes MultiViews FollowSymLinks ExecCGI

    AllowOverride None

    Order allow,deny

    Allow from localhost

</Directory>

 

If you already have this file, you can configure Perl to run from any directory like PHP by changing the line that says:

    Options Indexes MultiViews

to:

    AddHandler perl-script .pl

    PerlHandler ModPerl::Registry

    Options Indexes MultiViews FollowSymLinks ExecCGI

 

Now you are ready to turn on Apache itself. But first, do a sanity check. Sometimes copying and pasting from an internet forum can insert invisible, invalid characters into config files. Check your configuration by running the following command in the Terminal:

apachectl configtest

 

If this command returns "Syntax OK" then you are ready to go. It may also print a warning saying "httpd: Could not reliably determine the server's fully qualified domain name". You could fix this by setting the ServerName directive in /etc/apache2/httpd.conf and adding a matching entry into /etc/hosts. But for a development server, you don't need to do anything. You can just ignore that warning. You can safely ignore other warnings too.

 

Turn on the Apache httpd service by running the following command in the Terminal:

sudo launchctl load -w /System/Library/LaunchDaemons/org.apache.httpd.plist


In Safari, navigate to your web site with the following address:

http://localhost/

 

It should say:

 

It works!

 

Now try your user home directory:

http://localhost/~<your short user name>

 

It should say:

 

My site works

 

Now try PHP. Create a PHP info file with:

echo "<?php echo phpinfo(); ?>" > ~/Sites/info.php

 

And test it by entering the following into Safari's address bar:

http://localhost/~<your short user name>/info.php

 

You should see your PHP configuration information.

 

To test Perl, try something similar. Create a Perl test file with:

echo "print \$ENV{MOD_PERL} . qq{\n};" >  ~/Sites/info.pl

 

And test it by entering the following into Safari's address bar:

http://localhost/~<your short user name>/info.pl


You should see the string "mod_perl/2.0.5".

 

If you want to setup MySQL, see my User Tip on Installing MySQL.

 

If you want to add modules to PHP, I suggest the following site. I can't explain it any better.

 

If you want to make further changes to your Apache system or user config files, you will need to restart the Apache server with:

sudo apachectl graceful

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