Setting up a common login across multiple wordpress installations

Posted on February 1, 2009 by Gaurav Verma

Sorry, we have moved the article to

http://open-source-experiments.blogspot.com/2009/02/setting-up-common-login-across-multiple.html

 

Filed under: OPen source, tips and tricks, wordpress | Tagged: , , , , , |

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18 Responses

  1. ben, on March 27, 2009 at 4:33 am said:

    Thank you for this post…. I’m making the same thing with multiple blogs and your tutorial helpt me a lot.

    Ben

    Reply
  2. Kiran Thomman, on April 28, 2009 at 6:52 am said:

    I tied the same thing for my site http://www.kochidaily.com. I have two wp installations one on the main site and another in a folder called jobs. I have inserted the following in the wp-config.php in the http://www.kochidaily.com/jobs

    define(‘COOKIE_DOMAIN’, ‘.kochidaily.com’);
    define(‘COOKIEPATH’, ‘/’);
    define(‘CUSTOM_USER_TABLE’, ‘cd_users’);
    define(‘CUSTOM_USER_META_TABLE’, ‘cd_usermeta’);

    and the following in the capabilities file under includes in the jobs wp

    function _init_caps() {
    global $wpdb;
    // $this->cap_key = $wpdb->prefix . ‘capabilities’;
    $this->cap_key = ‘cd_capabilities’;
    $this->caps = &$this->{$this->cap_key};
    if ( ! is_array( $this->caps ) )
    $this->caps = array();
    $this->get_role_caps();
    }

    I am able to login using the main sites logins to both wordpress installs but unable to share the cookies between the domains. Ie I have to login and logout separately to each install. Loging in into the main site does not log me into the job site. I have to relogin meaning the cookie is not shared.

    Reply
  3. Kiran Thomman » Blog Archive » Setting single login across multiple Wordpress 2.7 installs using a single domain, on April 29, 2009 at 8:55 am said:

    […] of the posts I researched were helpful put could only partially solve the problem. The first post Setting up a common login across multiple wordpress installations claimed to solve the issue only helped me in allowing the different sections to use the same login […]

    Reply
  4. Lew A, on July 20, 2009 at 12:22 pm said:

    I had to do something similar, this was my solution:
    http://fullthrottledevelopment.com/setting-a-single-login-across-wp-wpmu

    For WP 2.8.1 and WPMU 2.8.1

    Lew

    Reply
  5. Bygga ihop flera Wordpress installationer « Webbhostr Blogg, on August 16, 2009 at 7:58 pm said:

    […] går bara att göra på WordPress installationerna. Mer information om hur man gör detta hittar du här och […]

    Reply
  6. mrkool, on August 17, 2009 at 8:32 am said:

    After upgrade to newer version for eg wordpress 2.8 to 2.9 , Will this hack work?

    Reply
  7. mrkool, on August 19, 2009 at 4:26 am said:

    Loging in into the main site does not log me into the other wordpress installation site. I have to relogin meaning the cookie is not shared.

    Reply
  8. techblog, on August 23, 2009 at 10:36 am said:

    hi,

    i wrote a similar blog post on my experiences getting unified login to work across multiple WordPress installs.

    i sited this post as additional resources / further reading..

    thanks!

    Reply
  9. Gaurav, on November 2, 2009 at 10:20 am said:

    i was looking for one of such guide, recently i am planning for another blog and i want to link them. Hopefully, this will help me in doing so.

    Reply
  10. hugh, on December 26, 2009 at 3:26 pm said:

    This seems like a lot of hacking… good tutorial. but why not wrap it into a plugin then add the plugin to both installs. with the URL of the added URL?

    Reply
  11. Innovation Business Template, on January 12, 2010 at 12:14 am said:

    […] Setting up a common login across multiple wordpress installations […]

    Reply
  12. Nachitox, on March 24, 2010 at 7:40 am said:

    And if you have the tables in differents databases ?

    Reply
  14. Niju Mohan, on July 8, 2010 at 4:04 pm said:

    This is not working in wordpress 3.0

    Reply
  15. b4d bunny, on September 20, 2010 at 1:55 pm said:

    Have you had any luck with wordpress 3.0.1??

    Reply
  16. Stephen, on October 21, 2010 at 2:19 pm said:

    Getting the “you do not have sufficient privileges” error on WP 3 after going through these steps. Any suggestions?

    Reply

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