A long stiff hair growing from the snout or brow of most mammals as e.g. a cat; SYN. vibrissa, sensory hair.

A tool for scanning a network for hosts running Common Gateway Interface (CGI) applications.
CGI was developed in the UNIX networking environment to enable Web browsers to execute “gateway” applications on Web servers. These gateway programs are typically written in PERL script and sometimes C programming language and are used to enhance the functionality of Web sites by providing handlers for forms, database access, and other dynamic content features.
Whisker, a tool developed by Rain Forest Puppy of SecuriTeam, can be used to scan networks for the presence of Web servers running CGI applications. Whisker can detect CGI code running on both Apache and Internet Information Services (IIS) machines, and it has a number of advanced features, including the ability to scan for CGI directories other than the default cgi-bin directory, scan applications in virtual subdirectories, and use an Nmap results file as the basis for directing a scan.