CIS 7.0.317799.4142 is blocking port 8443 TCP IN/OUT regardless of rule config.

Comodo Firewall Product Version 7.0.317799.4142 is – silently blocking port 8443 regardless of global rule configuration. There is no indication on the firewall logs. There are no rules established to block it. And the only discovered fix is to disable the firewall.

This port is being used for Tomcat SSL development environment as 443 is being preserved as a privileged port (when deployed to linux).

A share of your thoughts will be greatly appreciated.


Try adding the port to the Firewall port sets here:



Did it work? I hope so.


I have also added a Global Rule at the top of the stack to allow all incoming and out going TCP traffic toward destination port 8443. But CIS 7 still silent blocks the port until it is disabled.

Please make sure to enable logging in the Global Rule you made.