Server: LDAP integration
Can I connect Atlassian Server applications to LDAP directory?
For JIRA Service Desk:
You have to be cautious about your default group membership while setting up a Server product and its users through Active Directory, so your customers aren't accidentally added as JIRA users. Default group membership can be configured to place ALL new users in specific groups. If these groups also have permission to access the application, you might find yourself with a bunch of customers with unintended access to your JIRA instance.