How to scan IP addresses to identify devices or find vulnerabilities

Problem:

Sometimes it is necessary to identify a particular IP address or to scan an IP address for vulnerabilities.  How can I do this?

Solution

Download nmap , install and click scan.

You can also use the nmap cli for command line scans.  The command below for instance show all ciphers in use in an SSH connection:

nmap -Pn –script ssh2-enum-algos 10.154.100.102