.. _tlwebadm_system_health: The System Health Module ~~~~~~~~~~~~~~~~~~~~~~~~ The System Health module allows you to check the running state of the ThinLinc Master, Agent and Web Access services. There is also a tool to perform a user or group lookup which reports the time for the lookup. - :guilabel:`Service Status` reports current running state of the Master (**vsmserver.service**), Agent (**vsmagent.service**), and Web Access (**tlwebaccess.service**) services. - :guilabel:`Users and Group Lookup` allows you to test performance of user and group lookup on the system. Fill in values for username and/or group and click the :guilabel:`Test user and group lookup` button to perform a lookup.