Is there a way to completely disable the web interface to Pulse Secure and only allow access via the desktop client?
Server ver: 8.3r4
Sure can, using the user-agent string based realm level restriction. The concept is explained in https://kb.pulsesecure.net/articles/Pulse_Secure_Article/KB19883 however instead of the user agent strings mentioned in the KB create just two browser restriction rules on the user realm:
1. *Pulse* Allow
2. * Deny
Note: Since user-agent strings can be maniupulated by a client above logic should not be used as a strict security control rather its a way to discourage browser based access