Netcat

Netcat is a Unix utility which reads and writes data across network connections using TCP or UDP protocol. 

Following tasks can be done easily with Netcat:

• Connect to a port of a target host.
• Listen to a certain port for any inbound connections.
• Send data across client and server once the connection is established.
• Transfer files across the network once the connection is established.
• Can execute programs and scripts of the client on the server and vice versa.
• Can Provide remote shell access of server to a client where shell commands can be executed.
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