yep, url custom portal is deprecated long time ago. Virtual host is the only one left. (View Post)

You can uncheck these, its enabled by default. (View Post)

Expand the firmware version, then scroll down on right hand side. (View Post)

It's stated in 6.5.4.9 release note. When the firewall communicates with the cloud on an http connection, the resulting content length header may be big enough to cause a stack overflow on the device… (View Post)

They have more than 1 signatures now, please check. As a best practise, you should always have those security services(GAV,IDP) enable. (View Post)