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URL: www.packetstormsecurity.org
Client OS: Linux, UNIX
Target OS: TCP/IP networks
Price: Free
Description: Strobe is a quick and easy-to-use UNIX-based tool that will scan through any number of ports you select. It can run by itself and place all the results in an output file.
Strobe has several functions, but we have found the most effective way to use it is to give it one IP address and scan through port 5000. This will capture most common services and provide valuable information for exploitation.
Use: To use Strobe, you need to specify a beginning port (-b) and ending port (-e). For instance, to scan ports 1–2000 on host 10.10.10.10 you would use the following command:
#strobe –b 1 –e 2000 10.10.10.10
Figure 13-4 displays sample output from a Strobe scan.
Benefits: Strobe is easy to use and fast. The tool is also free.
Cons: Strobe is not as robust as Nmap and does not offer as many options.
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