You can create a custom log in for your remote SSL VPN users. When configured with a security policy, when the user connects to the SSL VPN portal, a custom log in screen appears. With this screen, you can define the address, customize the look and define how many users are can connect at any one time to the portal.

When adding the URL Path, you only need to enter the subdirectory or site. The FortiGate unit will complete the remainder of the address. For example, if the sub site is corpusers, only enter corpusers. The final URL that appears is http://172.20.120.230/corpusers. The login port is separately configured by going to VPN > SSL > Config.

When configuring with the security policy, when you create SSL VPN Authentication Rules, you can select the specific portal login screen.