![]() Just mark Zenmap for installation and your package manager will pick up the Nmap requirement automatically. You will find both of these tools in your Add/Remove Software tool. Installation of Zenmap is simple (you will need to also have Nmap installed). In this case that is very much true because Zenmap will give you an interactive graphical map of your network. And besides, as they say “A picture is worth a thousand words”. Although Nmap is incredibly powerful, when working with larger networks most administrators do not want to work with command line only tools. ![]() Nmap is an open source tool for network security and auditing. The Zenmap tool is actually a graphical front end for the very popular Nmap command line tool. But what happens when that network outgrows your ability to simply walk around and manually make note of what is up/down, what OS a device is running, or what ports are open? When this happens you need to make use of one of the de facto standard open source network auditing tools - Zenmap. This isn’t a problem if you have a small network. This is a highly intrusive scan.Network administrators have many tasks, and auditing the network is at the top of the heap. OS detection (-O), version detection (-sV), script scanning (-sC), and traceroute (-traceroute) are all enabled. Slow comprehensive scan command = nmap -sS -sU -T4 -A -v -PE -PS80,443 -PA3389 -PP -PU40125 -PY -source-port 53 -script all This is a comprehensive, slow scan. Regular scan command = nmap A basic port scan with no extra options. Quick traceroute command = nmap -sn -traceroute Traces the paths to targets without doing a full port scan on them. Quick scan plus command = nmap -sV -T4 -O -F -version-light A quick scan plus OS and version detection. Quick scan command = nmap -T4 -F This scan is faster than a normal scan because it uses the aggressive timing template and scans fewer ports. Ping scan command = nmap -sn This scan only finds which targets are up and does not port scan them. This can be useful when a target seems to ignore the usual host discovery probes. Intense scan, no ping command = nmap -T4 -A -v -Pn Does an intense scan without checking to see if targets are up first. Intense scan, all TCP ports command = nmap -p 1-65535 -T4 -A -v Scans all TCP ports, then does OS detection (-O), version detection (-sV), script scanning (-sC), and traceroute (-traceroute). Intense scan plus UDP command = nmap -sS -sU -T4 -A -v Does OS detection (-O), version detection (-sV), script scanning (-sC), and traceroute (-traceroute) in addition to scanning TCP and UDP ports. Without root privileges only version detection and script scanning are run. The -A option enables OS detection (-O), version detection (-sV), script scanning (-sC), and traceroute (-traceroute). Intense scan command = nmap -T4 -A -v An intense, comprehensive scan. Zenmap is packaged with default profiles: Target specification can be a hostname, an IP address, a netbock with cidr notation This panel enables to specify the target, the scan parameters and to launch the scan.
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