Scanning with nmap
nmap is the defacto for scanning networks by system administrators and penetration testers. It also provides countless community supported nse (nmap scripting engine) scripts which can perform a range of tasks from discovering services to discovering vulnerabilities within those services. Let's take a look at nmap and some of its features. nmap's manual is huge. On linux, it can be viewed by executing the terminal command: man nmap |more If you're like me though, scrolling through this gets to be a bit of a hassle (I love Ctrl+F). Thankfully, there is a way to export the manual to a text file. It may be done with this command: man nmap > nmap.txt As of this writting, there are currently 1,736 lines of text. So its probably easier just to port this to a text file and do a search. nmap is huge and powerful, and it is possible to cause yourself a lot of headache if you are not careful. Take for instance the following command: nmap --stats-every 5m -p- 192.168.1.