[SOLVED] Firewaĺl

[shaharhada]

How do the firewall work?
It's disallow to data to go through the port 80 and what else?

 

[USAFRet]

How do the firewall work?
It's disallow to data to go through the port 80 and what else?

Basically, blocks anything that wasn't specifically requested by a system on the inside.

 

[kanewolf]

How do the firewall work?
It's disallow to data to go through the port 80 and what else?

A firewall in the most generic sense, allows traffic that meets specific rules. A typical home firewall will allow all out-bound traffic, and disallow any traffic that was not requested. But that is just configuration rules. In a secured environment, the firewall rules may only allow specific protocols, like NTP or SSH through. Web traffic could be blocked. It really depends on what you are trying to control. The more locked down a firewall the more you know exactly what traffic is going through, because every data flow has to match a rule and every match is logged.