How to configure your Firewall on ClearOS

2021-07-20: WikiSuite will now support all major Linux distros. Thus, the information below is no longer updated. It may still be valid, or not. It will be eventually removed from this site, so anything relevant should be moved to the appropriate site. For anything related to ClearOS, please search among the following: ClearOS site, code base, Developer docs, Wiki or forum.

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Unless you are using ClearOS as a gateway, you should set the Network -> Settings -> IP Settings -> Network Mode to "Standalone" (https://example:81/app/network). This blocks everything.

Then visit https://example.org:81/app/incoming_firewall or via the admin panel Network -> Firewall -> Incoming where you can add some "Allowed Incoming Connections"

For example, if you are running a website, you should allow HTTP (port 80) and HTTPS (port 443):