# Sharing cookies for dyanmic domain

**URL:** <https://www.ruby-forum.com/t/sharing-cookies-for-dyanmic-domain/193219>\
**Category:** Rails\
**Created:** [August 13, 2010, 11:06am UTC](https://www.ruby-forum.com/t/sharing-cookies-for-dyanmic-domain/193219 "2010-08-13T11:06:47Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![atin](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/8e8cbc/32.png) [@atin](https://www.ruby-forum.com/u/atin)\
**Post date:** [August 13, 2010, 11:06am UTC](https://www.ruby-forum.com/t/sharing-cookies-for-dyanmic-domain/193219/1 "2010-08-13T11:06:47Z")

</div>

Hi folks,  
i have two websites [example.com](http://example.com) and a mob version [m.example.com](http://m.example.com) so  
waht i want is that if a user is logged in [example.com](http://example.com) then when he  
switches to [m.example.com](http://m.example.com) he wont have to login again…  
Is there any method that anyone can suggest i have tried with some  
techniques available on net but they are not working out…  
Thanks,  
Atin