Linux command
ncat 命令
文件
涉及管道、覆盖或删除，执行前请先确认路径和参数。
常用示例
Listen
ncat -l [port] > [path/to/file]
Listen
ncat -lk [port]
Send file
ncat < [path/to/file] [address] [port]
Example
ncat --ssl -lk [port]
Connect
ncat --ssl [host] [port]
Check connectivity
ncat -w [seconds] -vz [host] [port]
Example
ncat -l [port] --chat
说明
ncat is a networking utility from the Nmap project for reading, writing, redirecting, and encrypting data across networks. It is a reimplementation of netcat with additional features including SSL support, proxy connections, and IPv6. Ncat can operate as a simple TCP/UDP client or server, port scanner, or network relay. It supports connection brokering, access control, and can be used for file transfer, port forwarding, and network debugging.
参数
- -l, --listen
- Listen for incoming connections
- -k, --keep-open
- Accept multiple connections in listen mode
- --ssl
- Use SSL/TLS encryption
- --ssl-cert _file_
- Specify SSL certificate file
- --ssl-key _file_
- Specify SSL private key file
- -w, --wait _seconds_
- Connection timeout in seconds
- -v, --verbose
- Enable verbose output
- -z
- Zero-I/O mode; report connection status only
- -p, --source-port _port_
- Specify source port
- -e, --exec _command_
- Execute command after connection
- --chat
- Enable chat mode for multiple users
- --proxy _host:port_
- Connect through proxy
- --proxy-type _type_
- Proxy type: http, socks4, socks5
- -4
- Use IPv4 only
- -6
- Use IPv6 only
FAQ
What is the ncat command used for?
ncat is a networking utility from the Nmap project for reading, writing, redirecting, and encrypting data across networks. It is a reimplementation of netcat with additional features including SSL support, proxy connections, and IPv6. Ncat can operate as a simple TCP/UDP client or server, port scanner, or network relay. It supports connection brokering, access control, and can be used for file transfer, port forwarding, and network debugging.
How do I run a basic ncat example?
Run `ncat -l [port] > [path/to/file]` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -l, --listen do in ncat?
Listen for incoming connections