Do Meteor allow automatically login for two system?

help
1

Do Meteor allow automatically login for two system?

  1. Application PHP
  2. Application Meteor
    If it allow to do , how can we do? Do you have any suggestion?

When login to PHP application then use the PHP authentication but whenever login to Meteor application then automatically login.

For example:
When go to http://www.aaa.com Login with PHP (Application PHP) then go to
http://www.aaa.com/chat (Meteor Application) then able to automatically logging

Thank you.