With just its one base command with multiple other options, Nmap helps users with loads of information to protect machines from unwanted attacks. Along with this, Kali Linux provides utility to get the entire result of the Nmap on a file and utilize it later for its numerous other uses. Using the details printed on the console, one can take a copy of the same into a text editor perform required analytics. This article has a flavor of how Nmap comes in handy for a penetration tester or a network analyst. We see that both the repository, the one for experimental is also in place in the source.list. Since this IP address runs on only one port, not all 100 ports have been tested. Example #5Īll the ports in the range 81-90 are tested, and the result is printed on the console.
Only port 8o is scanned, and the result is printed on the console.
Given below are the examples of Kali Linux Nmap: Example #1Īll the IP address in the range of 89 to 91 (namely 192.27.9.89, 192.27.9.90, 192.27.9.91) are scanned. Nmap also provides the functionality to scan the 100 most common ports and even scan all the available 65535 ports (this scan will take a lot of time). Now, if we are not aware of the ports that are malfunctioning, we can scan a range of ports, similar to one we had for scanning the range of IP addresses. Using a scan of the port, one can quickly determine if malware is attacking as malware generally hits a specific port in the host. Nmap allows user to also scan ports along with the utility we mentioned above about scanning IP address and range of IP address. In an advanced situation of port selection, Nmap might be used extensively as well. In an extended scenario of scanning an IP address, a user also has the flexibility to use Nmap to scan a range of IP addresses to look for instances or loopholes through which an attack might be possible.For example, attackers prey on the specific host containing financial information. The next way to use Nmap is by scanning a host for information that might make it a high-value target on a network that the hacker is on the lookout for.Using the utility to distinguish false positives and false negatives will allow false positives to come out in the open and keep the network analyst on toes to respond to any true positive attack without worrying about the false positives. False positives trigger alert unnecessarily, which might hide any attack.
Using this, the “threat sniffer” who is noticing some unfamiliar activities from a single IP can scan so that the false positives and false negatives can be distinguished and hit the target if the IP is a notorious one.