how to redirect old link to new link

hi to all i am using vbulletin for my forum with vbseo
i want to change root of my forum www.example.com TO www.example.com/forum
how to redirect all user of google search from old link to new link

 

You can use htaccess to move all users from root to the forums,

RewriteEngine On
RewriteRule ^$ /forum [L]

 

Using htaccess for 301 redirection is the best method

 

Create a file called .htaccess in your website's main directory and put the following content into it:

RewriteEngine On
Redirect 301 / http://www.example.com/forum/

Code (markup):

 

with this code

RewriteEngine On
Redirect 301 / http://www.example.com/forum/

Code (markup):

my all posts and threads will move on new link or when some one search in google (cause in google it will show old link)it will show not found

 

Have you tried the code from ServerPolice too?

 

no i did not try from serverpolice

 

put this code at the top of index.php

<?php
header("Location:yournewlinkhere");
?>