openSSH definition

OpenSSH is the premier connectivity tool for remote login with the SSH protocol.

It encrypts all traffic to eliminate eavesdropping, connection hijacking, and other attacks.

In addition, OpenSSH provides a large suite of secure tunneling capabilities, several authentication methods, and sophisticated configuration options.

The OpenSSH suite consists of the following tools:

• Remote operations are done using ssh, scp, and sftp.

• Key management with ssh-add, ssh-keysign, ssh-keyscan, and ssh-keygen.

• The service side consists of sshd, sftp-server, and ssh-agent.

scp is outdated

Warning

The scp protocol is outdated, inflexible and not readily fixed. We recommend the use of more modern protocols like sftp and rsync for file transfer instead.”