Single Sign On – how to implement?

Say I have a network of websites. When a user logs in to one, I want them to not have to log in again on the other websites. Is there a secured way to do this?

Here is Solutions:

We have many solutions to this problem, But we recommend you to use the first solution because it is tested & true solution that will 100% work for you.

Solution 1

You could do as stackexchange does and implement OpenID.

That’d allow your users to sign in using one of their favorite services, and can be a two-click sign on experience. They wouldn’t even need to fill out a form to register for your sites then.

Solution 2

log in with facebook, another option.

Solution 3

Create a domain name that you will use primarily for tracking your network users and use a web beacon image on your login pages to see if a cookie for your tracking domain exists.

Note: Use and implement solution 1 because this method fully tested our system.
Thank you 🙂

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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