HOW TO INSTALL NETCAT LINUX INSTALL

From the netcat man page: netcat is a simple unix utility which reads and writes data across network connections, using TCP or UDP protocol. Netcat is known as the TCP/IP swiss army knife. serve can accepts both a string or a stream.Keeping this in view, why netcat is used?.You can enable it with the verbose: true param or the env var DEBUG=netcat:* Tests -w secs timeout for connects and final net reads.-U Listen or connect to a UNIX domain socket.-q secs quit after EOF on stdin and delay of secs.-i secs delay interval for lines sent, ports scanned (client-side).-e filename program to exec after connect.-c shell commands as '-e' use /bin/sh to exec.

HOW TO INSTALL NETCAT LINUX INSTALL

filter(transformFn)ДЇilter the incoming data with the given transform function function (chunk, enc, cb)) - TCP onlyДЇired when the server remains inactive for a specified wait(ms) time.ДЇired when the client remains inactive for a specified wait(ms) time.Д®mitted when the client established a connection with a server.ДЇor the standalone usage install the nc CLI package: $ npm install -g nc Pipe incoming data from the client to the given outStream. Return the client DuplexStream reference. A client will wait ms milliseconds from the first data sent and if there's no more data to send the client will close.A server will wait ms milliseconds from the first data and if it doesn't get more data, will close the connection.interval(ms) or i(ms)Д¬lient-side only: Specifies a delay time interval for data sent. Retry connection every ms milliseconds when connection is lost. Let the client connect to the previously set address and port. Optionally you can provide the path to a unix sock file and listen/connect to it. Make the UDP/TCP server listen on the previously set port. When used client-side: set the remote address to connect to.When used server-side: set the local address to listen to.Netcat can bind to any local port, subject to privilege restrictions and ports that are already in use. Send the hello buffer to port 2100, then after 1000 ms close the client. Netcat can be very easily configured as a proxy server: Nc.k().port(2389).listen().serve(process.stdin).pipe(process.stdout) The exec() method execute the given command and pipe together his stdout and stderr with the clients socket. ( k() is an alias for keepalive()) Serve raw buffer Server The server will be kept alive and not being closed after the first connection. Or viceversa you can do the equivalent of nc -l -p 2389 < filename.txt and when someone else connects to your port 2389, the file is sent to them whether they wanted it or not: Server Nc.port(2389).listen().pipe(outputStream) Easy right? Server and Client connection Server This module's API tends to follow as much as possible the original netcat's cli params.ДЇor instance: nc -l -p 2389 is equivalent to nc.port(2389).listen(). Const nc2 = new NetcatClient ( ) Examples

How to install netcat linux