grrsh: Go Reverse Remote Shell
This tool allows you to make reverse SSH connections. Essentially, it provides a normal SSH server and client (with an optional proxy mode) where the TCP client and server reverse roles. The client provides an SSH server that makes outgoing connections to the server, which can either provide an SSH client or proxy connections to a local port, allowing you to connect using a standard OpenSSH client.
Many OpenSSH features are supported when using proxy mode, including port forwarding, "netcat mode" (-W), and even scp.
- Network or "Internet of Things" devices where port forwarding is difficult or impractical.
- SSH servers on "road warriors" without a fixed address.
Copyright (C) 2016-2019 mutantmonkey This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.