socat 命令

常用示例

说明

socat (SOcket CAT) is a multipurpose relay tool that establishes two bidirectional byte streams and transfers data between them. It's like a more powerful netcat that supports numerous address types and protocols. Address types include TCP, UDP, Unix sockets, files, pipes, PTYs, processes (EXEC), SSL, serial devices, and many more. socat can connect, listen, and relay between any combination of these. Common use cases include port forwarding, protocol conversion, debugging network services, creating tunnels, and connecting disparate systems. It's invaluable for system administration and network troubleshooting.

参数

TCP-LISTEN: _port_

Listen on TCP port.

TCP: _host_ : _port_

Connect to TCP host:port.

UDP: _host_ : _port_

UDP connection.

UNIX-CONNECT: _path_

Connect to Unix socket.

UNIX-LISTEN: _path_

Listen on Unix socket.

EXEC: _command_

Execute command and connect to its I/O.

OPENSSL: _host_ : _port_

SSL/TLS connection.

PTY

Create pseudo-terminal.

STDIO or -

Standard input/output.

FILE: _path_

Open a file for reading and writing.

PIPE: _path_

Create or connect to a named pipe.

SOCKS4: _host_ : _port_

SOCKS4 proxy connection.

fork

Handle multiple connections (address option).

reuseaddr

Allow address reuse (address option).

verify= _0|1_

SSL certificate verification (address option).

-d -d

Verbose debugging output (repeat for more detail, up to -d -d -d -d).

-v

Verbose data transfer logging.

-t _TIMEOUT_

Total inactivity timeout in seconds.

-T _TIMEOUT_

Transfer timeout in seconds.

-u

Unidirectional mode (left to right only).

-U

Unidirectional mode (right to left only).