Perceived Purpose
Identify and eliminate vulnerabilities.
Tools
For the first part of this lab, we used three port scanners: SuperScan (www.foundstone.com/resources/freetools/superscan.exe), NetBrute (http://www.rawlogic.com/netbrute/), and nmap, which was designed to rapidly scan large networks, although it works fine against single hosts. Nmap uses raw IP packets in novel ways to determine what hosts are available on the network, what services (application name and version) those hosts are offering, what operating systems (and OS versions) they are running, what type of packet filters/firewalls are in use, and dozens of other characteristics.
Then we will use the enumeration tool to determine what resources are being made available on the network is LANguard Network Security Scanner from GFI.
Procedures and Results
Click here to see the precedure and result for SuperScan
Click here to see the precedure and result for NetBrute
Click here to see the precedure and result for Nmap
Click here to see the precedure and result for LANguard
Analysis and Reflection
The three scanning tools are critical in identifying which ports are active at which addresses. If we don’t monitor this information, we are increasing our vulnerability and asking for trouble!
So we constantly should scan ports to identify what our vulnerabilities are. Then we should use enumeration to identify the resources on a particular network node that are available for network access.
Time
65 minutes