Redirect all links to www?

[Skavenger]

Hi, is there any way to redirect all the trafic from 'http://a.com' to 'http://www.a.com'?

In the configuration options I put, in the cookies option, the address of my site with 'www', but if you try to login without 'www' you can't login correctly, so I need to do that redirect

I hope you understood what I need

Thank you

[RedTyger]

<a href="http://enarion.net/web/apache/htaccess/redirect-www-and-no-www/" target="_blank">http://enarion.net/web/apache/htacce...ww-and-no-www/</a>

[Skavenger]

Thank you, is working :)