How to keep the session logged between different subdomains

Issue

• You need to logging each time you enter in each site even sub domines of the same domain.
• To keep de same session across different sites that are subdomains of the same domain. For example siteA.example.com and siteB.example.com

Environment

• Portal 6.2
• DXP 7.0
• DXP 7.1
• DXP 7.2
• DXP 7.3
• DXP 7.4

Resolution

• To keep the same session between subdomains, the domain has to be defined in the session cookie with the following portal property:

  session.cookie.domain=example.com

• If you use tomcat, you have to modify one extra property

  session.cookie.use.full.hostname[tomcat]=false

• In addition, the domain must be defined in the context of the application server.
  • In this example, with Tomcat you can define it in their context.xml file with the following parameter:

    <Context sessionCookiePath="/" sessionCookieDomain="example.com">

Additional Information

• Session Properties