# Keep sessions while switching domains **URL:** \ **Category:** Rails\ **Created:** [September 17, 2007, 1:23pm UTC](https://www.ruby-forum.com/t/keep-sessions-while-switching-domains/114645 "2007-09-17T13:23:34Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![migo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/f14d63/32.png) [@migo](https://www.ruby-forum.com/u/migo)\ **Post date:** [September 17, 2007, 1:23pm UTC](https://www.ruby-forum.com/t/keep-sessions-while-switching-domains/114645/1 "2007-09-17T13:23:34Z")
Hello, Our rails app has several domains. We are now implementing a single https connection [https://secure.domain.xx](https://secure.domain.xx). All other domains need to switch to that new secure domain in certain circumstances. We only have one ssl cert and it is not possible to create and use a ssl cert for all domains! Now when switching domains we loose the session, that was previously used and I was not able to restore my old session. I was trying to send the old session id via the url and then reuse it by setting it again like this: redirect\_to :host =\> ‘127.0.0.1:3000’ , :session\_key =\> request.cookies[‘\_xxx\_session\_id’][0] unless (request.env[‘HTTP\_HOST’] == ‘127.0.0.1:3000’) cookies[:\_xxx\_session\_id] = params[:session\_key] This failed since rails seems to regenerate a new session id somehow at a later stage. The new session cookie will have this newly generated id. How can I tell Rails to use my session id ? Has anybody an idea on how to do this? I must get the old session transferred to the new domain in order to access the session data. Many thanks in advance for any help on this. migo