Netcat Power Tools by Kanclirz Jan Jr

Netcat Power Tools by Kanclirz Jan Jr

Author:Kanclirz, Jan , Jr.
Language: eng
Format: epub
Publisher: Elsevier


If the server you're scanning is running HTTPS, or secure HTTP, Netcat cannot directly communicate with this port. You will need a TLS wrapper, such as stunnel, to take the Netcat connection and encrypt it for the HTTPS server. By using a procedure such as this, the TLS wrapper will create a local listening port to proxy the connection, requiring you to make a connection with Netcat to your local host in order to connect to the remote HTTPS server.

In contrast to Web servers, most file servers are generous about providing information to clients such as Netcat. By simply making the TCP connection, users will be able to immediately see the banner provided by an FTP server, and begin to determine the type of operating system and software in use. After making a connection to an FTP server, look for any ASCII text lines preceded by “220.” The 220 in FTP protocol refers to the welcome banner shown to new users before a login. This banner can be easily changed by administrators, though, to obscure the system's actual information.



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