Is a firewall designed to catch spam, phishing emails etc., or is that the sole responsibility of a spam-filtering solution? I know with so-called UTM's the line between spam filter and firewall is ...

So far, in my previous articles on Nmap, we've looked at how the scanner can be used to map and audit a network, as well as track down noncompliant devices and services. But hackers can also use Nmap ...