gcat is a tool for penetration testers and sysadmins. Its design is roughly based on socat (hence the name). However, gcat provides the following delta to socat:

  • serve command: gcat allows starting several different servers for quick usage. The serve command might be used in penetration tests or quick ‘n’ dirty lab setups. Here is an excerpt for supported protocols: doh, ftp, http, ssh, webdav.

  • proxy command: it works similar to socat. Data is proxied between two proxy modules, specified as command line arguments. The proxy command uses URLs for its arguments.

  • Written in Go: it is trivial to compile gcat to a static binary with no runtime dependencies.


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