added other considerations

Installing-Tracks-2.2.2-on-CentOS-6.5-Minimal-x86_64.md

@@ -18,6 +18,10 @@ Build Overview
 1. Apache2
 1. Done(?)
 
+Other Considerations
+1. SELinux Passenger Module
+1. Phusion Passenger, Rails, & Sub-URIs
+1. Nginx reverse proxy
 
 ## 1. Base operating system
 
@@ -1430,4 +1434,106 @@ Create actons specifying context and project.
 
 Alternatively, You can simply create an action specifying a new context and project. Tracks will auto-create them. For example, create an action to 'replace toilet seal' and specify context 'home' and project 'bathroom remodel.'
 
- ;)  Enjoy!
+ ;)  Enjoy!
+
+#Other Consdierations
+
+
+-----
+##SELinux Passenger Module
+
+The process that follows can be used for creating security modules for SELinux. Alternatively, you can disable SELinux, but that would be unwise.
+
+Temporarily go into SELinux permissive mode.
+```
+$ sudo setenforce 0
+```
+
+Restart Apache
+```
+$ sudo service httpd restart
+```
+
+Start using your Rails application
+Walk through SELinux log and generate new SELinux policy module
+```
+$ sudo grep httpd /var/log/audit/audit.log | audit2allow -M passenger
+```
+
+Install newly created SELinux module
+```
+$ sudo semodule -i passenger.pp
+```
+
+Switch SELinux back into enforcing mode.
+```
+$ sudo setenforce 1
+```
+
+-----
+##Phusion Passenger, Rails, & Sub-URIs
+
+In the course of using ruby, rails, and passenger, you may need to create multiple sites or apps not just one. Using Passenger sub-uris will accomplish this task. In addition, when using Nginx (see below), using a sub-uri simplifies configuration and reduces hours of banging your head on your desk.
+
+With Tracks, update the site.yml to use a subdir, then update Apache's configuration to reflect the virtual host shown below. So for www.somedomain.com we will use subdir tracks which result with http://www.somedomain.com/tracks.
+
+???Is this really needed? Confusing for it appears to be functioning with it commented out.???
+Remove the comment '#' and update to read subdir: "/tracks"
+```
+$ vi /home/tracks/tracks/config/site.yml
+```
+
+Update the virtual host to read as follows:		
+```
+$ sudo vi /etc/httpd/conf/httpd.conf 
+
+<VirtualHost *:80>
+  ServerName trk.harmonson.net
+  DocumentRoot /home/tracks/tracks/public
+
+Alias /tracks /home/tracks/tracks/public
+
+  <Location /tracks>
+		PassengerBaseURI /tracks
+		PassengerAppRoot /home/tracks/tracks
+  </Location>
+
+  <Directory /home/tracks/tracks/public>
+		 Allow from all
+		 # This relaxes Apache security settings.
+		 AllowOverride all
+		 # MultiViews must be turned off.
+		 Options -MultiViews
+		 # Uncomment this if you're on Apache >= 2.4:
+		 #Require all granted
+  </Directory>
+
+</VirtualHost>
+```
+
+
+Restart Apache for changes to take effect.
+```
+$ sudo service httpd restart
+```
+
+-----
+##Nginx reverse proxy
+
+Nginx is a very efficient web service which I use as a reverse proxy. Below is an example of a working Nginx 1.4 location config using the Tracks build above and sub-uri /tracks. This is only /location not a complete nginx.conf.
+```
+### Tracks
+location /tracks/ {
+		auth_basic "off";
+
+## Set Headers
+		proxy_set_header Host $host;
+		proxy_set_header X-Real-IP $remote_addr;
+		proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+		proxy_set_header X-Forwarded-Proto https;
+
+## Tracks Backend
+		proxy_pass http://192.168.1.111/tracks/;
+		proxy_redirect off;
+}
+```