As far as i know you need to make sure the cookies domains are the same through out all sites if they are on separate domains and even this can be a bit buggy at times. WPMUDEV.ORG created a sync plugin to sync users across multi sites but as far as a single sign on … Read more
Solution: two (same) custom plugins on both sites. Workflow to be triggered on successful login: generate hash and save in DB; expires after 30/60 seconds save initial destination redirect to the other site with ID; make necessary checks there – hash, IP etc. if everything is OK, login the user programmatically redirect back to the … Read more
If CAS is the only login method, I think your blog should be protected. But, the atackers don’t care about alternative login methods. They simply send request against wp-login.php. So if you still have an account named “admin”, CAS cannot protect your blog. Let’s think about the worst case. Assuming you have an account named … Read more
Here is a quick function I had lying around that does exactly what your talking about. It uses some core WP functions to get the job done and you’ll have to modify it to fit your needs, maybe double-check on the security of the thing but it should give you a head start. function auto_function() … Read more
Simple Facebook Connect uses this exact registration widget. http://wordpress.org/extend/plugins/simple-facebook-connect/
Your non-wordpress application cannot see the WP cookie because the WP session cookie is only set for the path that WP is installed in (/blog in your example). You can configure WP to create the session cookie for the root path “https://wordpress.stackexchange.com/” so your non-wordpress application can manage it by modifying your wp-config.php, add – … Read more
Take a look at this answer and see if it help: https://wordpress.stackexchange.com/a/11472/490
After a lot of searching and asking people who are far more clued up than myself, I have concluded that this is impossible mainly because it requires two concurrent DB connections. In the end, my SSO solution was to build a more traditional SSO system that creates users in the remote site using the user … Read more
Frontend in WP , backend in Laravel. Some level of integration needed
Single sign on for several website domains