Best way to make www.example.com AND example.com use the same session variables?

Question

I'm working on a webpage (let's call it example.com) and added the DNS record under CNAME (Alias): ``` Host Record Points to TTL www example.com 14400 ``` However when I navigate through example.com, the session variables that are set are not retained if I go to www.example.com What is the best way to make www.example.com AND example.com use the same session variables? I'm using ubuntu 12.04, php5, apache2. ``` ServerAdmin webmaster@localhost ServerName www.example.com Redirect 301 / http://example.com/ DocumentRoot /var/www/public_html Options FollowSymLinks AllowOverride None Options Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny allow from all ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all ErrorLog /var/log/apache2/error.log # Possi…

Accepted Answer

What is the best way to make www.mysite.com AND mysite.com use the same session variables?

The best way is to not have both host names running the same site.

Pick one of them to be canonical, then redirect everything from the other to the canonical one.

```
<VirtualHost *:80>
ServerName example.com
Redirect 301 / http://www.example.com
etc
```

Best way to make www.example.com AND example.com use the same session variables?

Solution

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