best way for redirecting

hi I want to redirect my website from non www to with www.

Just want to confirm, should i change in .htaccess file and please tell me the code also ?

 

Yes,

you can put code in .htaccess file.

Here is the Details of Redirection Code :

If you need to redirect http://mysite.com to
http://www.mysite.com and you've got mod_rewrite enabled on
your server you can put this in your .htaccess file :

Options +FollowSymLinks
RewriteEngine on
RewriteCond %{HTTP_HOST} ^example\.com
RewriteRule ^(.*)$ http://www.example.com/$1 [R=permanent,L]

or this:

Options +FollowSymLinks
RewriteEngine On
RewriteCond %{HTTP_HOST} ^domain\.com$ [NC]
RewriteRule ^(.*)$ http://www.domain.com/$1 [R=301,L]

Tip: Use your full URL (ie http://www.domain.com) when
obtaining incoming links to your site. Also use your full
URL for the internal linking of your site.

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Thanks
Eric

 

thanks, one more think
Should i put this code in each of my website individually to work. ?

 

see you can do it in two way
1) by changing .htaccess as describe by gtwlabs and
2) by google webmaster tool, in which u have to submit your website in google webmaster tool. where you will find this option.

let me know if u need any help

 

Thanks,
but the second option will works only for google, not other search engines. Is the same option available in yahoo and msn