I've read the ubuntu developer docs regarding the ufw here, but couldn't find what I was looking for. It allows me to set rules for controlling in/out traffic based on source IP or port numbers, but what I want is to restrict based on applications. For example:
(1) only firefox executable allowed to communicate on port 80 - outgoing (2) only apache/httpd executable allowed to communicate on port 80 - incoming, etc.
(Hope you get what I'm trying to imply - this is possible in windows firewall).
I'm not able to see how I can achieve this with ufw firewall? Or is there a better alternative to ufw which is able to do this on linux?