opensnitch
The user can decide if block the outgoing connection based on properties of the connection: by port, by uid, by dst ip, by program or a combination of them.
These rules can last forever, until the app restart or just one time.
The GUI allows the user to view live outgoing connections, as well as search by process, user, host or port.
OpenSnitch can also work as a system-wide domains blocker, by using lists of domains, list of IPs or list of regular expressions.
Latest reviews
4
Works perfect for my know-how level- I understand the basics, but not an expert in the field. It just pops new connections up, and I google them if necessary and allow/deny them. Over time, a fitting profile develops, much easier than in UFW. Also lightweight, and I can see the ports easily. Just not very visual the hole thing