I have installed the smoothwall 3, also install advanced proxy and url filter.
First had the problem that could not enter https pages, I solved the problem by configuring the squid.
I have the following problem I can not access to certain pages, for example https: / / hostname: 1800 or http://hostname:90
or any page with a different port.
Found on the web that modifies the iptables, the following is found modify the firewall script in / etc / rc.d / rc.firewall.up but I need help where edit or add rules to accept https: / / hostname: port or http://hostnameort