Assuming we have installed the OCS-NG server on a Linux distribution, we might also have the third option of the Security menu. This tool scans a manually specified host for a rather exhaustive list of details. It can also find out if the host was inventoried and/or just discovered. It determines the operating system (if available), DNS, and NetBIOS name.
The web interface of IP Query is basically a frontend to the
IPDISCOVER-UTIL Perl script. That is why it is only available on Linux machines due to the Perl interpreter. Of course, there are workarounds for this too. It is based on the world-class security scanner and notorious penetration testing/security auditing tool, nmap. You can find more information about