The login portlet allows the portal users to log into the portal:

Furthermore, the portlet allows logging off from the portal:

Configuration
The users are authenticated by means of the user manager configured in the /instance/instName/webapps/PM/WEB-INF/pm.xml file.
Usage
The portlet can be placed into layout files by means of the following instruction:
<npspm includePortlet="/PM-PL/login" ... />