DNS block is working as expected but it would be great if a custom error message would be available for end user. I know it’s possible on AXIS Security ZTNA solution, that also allows DNS blocking, but it seems to use a custom SSL certificate imported to the machine so I believe it uses SSL interception to do so. But maybe this could be achieved by using Squid as suggested in Split Web Traffic feature embedded on FerrumGate UI
Usefull feature thanks, I added to feature list.