I promise I have been over all the instructions for MU and this plugin in detail and followed the instructions to the letter, and followed them rigorously, with a medium understanding of DNS and httpd, but I've failed to get domain mapping to work in a very basic test. I believe I must somehow have missed something.
I have set up two subdirectory sites on our WP Multi-site, and
http://54.76.48.242/sl
http://54.76.48.242/stand am trying to get the WordPress installations there to appear at these two domains:
http://sl.cosd.com
http://st.cosd.comI can tell that mapping is working, since browsing to the addresses http://sl.cosd.com and http://st.cosd.com goes to the subdirectory sites respectively, rather than the parent site. BTW we have no "Primary" domain defined in our Domains list since we don't know which domains will survive as others may be added and removed.
The domains above have A records that point to our server's IP address 54.76.48.242, with our httpd.conf currently directing all traffic into our WordPress root:
<VirtualHost _default_:80>
DocumentRoot /var/www/html/wpmulti
</VirtualHost>I know mod_rewrite is working since the Permalinks are working on one of our sites. I can see that the URL http://sl.cosd.com/other is redirecting to http://54.76.48.242/sl/other ... so mapping is working, just in the opposite direction than the one we had hoped.
All relevant details I can think of: we are using WP 3.9.1 on an AWS Linux EC2 instance with PHP5.5.13 and Apache 2.4, with all the Multisite and Sunrise defs in our root wp-config.php and the complete mojo from the MU "Network Setup" superseding everything everything in our root .htaccess, and a fresh sunrise.php from the plugin copied into our root wp-content ... there is literally nothing else configured here, on a fresh WP installation.
Please, where could I begin testing to find what may be wrong?