December 2017
Intermediate to advanced
860 pages
16h 1m
English
Content preview from Metasploit Revealed: Secrets of the Expert Pentester
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NMAP
NMAP, an acronym for Network Mapper, is an extremely advanced tool that can be used for the following purposes:
- Host discovery
- Service detection
- Version enumeration
- Vulnerability scanning
- Firewall testing and evasion
NMAP is a tool with hundreds of parameters to configure and covering it completely is beyond the scope of this book. However, the following table will help you to know some of the most commonly required NMAP switches:
|
Sr. no.
|
NMAP switch
|
Purpose
|
| 1. | -sT | Perform a connect (TCP) scan |
| 2. | -sU | Perform a scan to detect open UDP ports |
| 3. | -sP | Perform a simple ping scan |
| 4. | -A | Perform an aggressive scan (includes stealth syn scan and OS and version detection plus traceroute and scripts) |
| 5. | -sV | Perform service version ... |
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.