Single Sign On in Forms Authentication

If you have for example two ASP.NET applications and you want to share the authentication cookie between those application, you can do that using the SSO.

To configure your applications to share the authentication cookie, each application has to have same configurations in the web.config file. One important notice in here that the name, protection and path attributes should be the same also in the two web.config files

<authentication mode="Forms" >
        <forms loginUrl="login.aspx" name=".ASPXAUTH" protection="All" timeout="90" path="/" />
      </authentication>

      <machineKey validationKey="C50B3C89CB21F4F1422FF158A5B42D0E8DB8CB5CDA1742572A487D9401E3400267682B202B746511891C1BAF47F8D25C07F6C39A104696DB51F17C529AD3CABE" decryptionKey="8A9BE8FD67AF6979E7D20198CFEA50DD3D3799C77AF2B72F"
          validation="SHA1" />

Copy the above configurations into the web.config.


Best Regards,