Nmap is widely known for its famous port mapping capabilities — we love it, and even included it in our best port scanners article a few months ago. Still, it would be quite unfair to reduce Nmap to nothing more than a "network mapper" or "port scanner."
When we analyzed the top vulnerability scanning tools available, Nmap wasn't mentioned among them; it isn't dedicated to those specific tasks but to the entire mapping and reconnaissance process. However, that doesn't mean it doesn't offer some great features when it comes to vulnerability scanning.
Before we jump into the fun stuff, remember you can also take a look into our Nmap Cheat Sheet guide for Nmap vulnerability scanning tips and tricks. read more...
Traditionally, Unix/Linux/POSIX filenames can be almost any sequence of bytes, and their meaning is unassigned. The only real rules are that "/" is always the directory separator, and that filenames can't contain byte 0 (because this is the terminator). Although this is flexible, this creates many unnecessary problems. In particular, this lack of limitations makes it unnecessarily difficult to write correct programs (enabling many security flaws), makes it impossible to consistently and accurately display filenames, causes portability problems, and confuses users. more ....
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