A Jump Proxy or Jump Host is a server or device that is used as a bridge to connect to another device that is usually on a local area network (LAN), the Jump Proxy is accessible via external IP and it must implement rules of security that protect both the Jump Proxy and the LAN.
Dropbear is a small and lightweight SSH server and client that can replace OpenSSH on any POSIX platform such as GNU / Linux, * BSD, Cygwin … Dropbear is free software since it is released under MIT-style licenses.
To run a remote command on GNU/Linux or another UNIX variant, you must be able to access the remote server through ssh
$ ssh servidor-remoto command
SSHFS (Secure SHell FileSystem) is a file system for GNU/Linux, BSD and other UNIX like OS that allows you to mount a remote directory in userspace (filesystem userspace) making use of FUSE and ssh. Once you mounted the remote directory you can do any operation over it as if it were a local DIR.
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