Secure Shell (SSH)

Secure Shell (SSH) is a cryptographic network protocol for connecting to ssh network services providing encrypted communication and authentication. Most popular implementation is open source OpenSSH.

OpenSSH includes the following binaries:

• ssh, ssh client to connect using Secure Shell protocol
• scp, a replacement for obsoleted rcp
• sftp, a replacement for not encrypted ftp
• sshd, the SSH server daemon
• ssh-keygen, a tool to inspect and generate the RSA, DSA and Elliptic Curve keys that are used for user and host authentication
• ssh-agent
• ssh-add
• ssh-keyscan, to scan a list of hosts and collects their public keys
• ssh-copy-id, to copy local keys to remote machine.

Ssh clients:

• PuTTY
• ssh (OpenSSH)

Related terms

• Wikibooks: OpenSSH
• ssh-import-id
• WinRM
• KexAlgorithms

See also

• SSH: Ssh (OpenSSH client), TLS, .ppk, .key, .pem, .crt, .pub, ED25519, ssh-copy-id
• ssh clients: ssh (OpenSSH client), putty, plink, mosh, paramiko, conch pssh, sshpass and autossh
• OpenSSH (changelog), /etc/ssh/sshd_config, /etc/ssh/ssh_config, ~/.ssh/, openSSL, sshd logs, sftp, scp, authorized_keys, ssh-keyscan, ssh-add, ssh-keygen, ssh, Ssh -O stop
• tmux, screen, tmate, Byobu, iTerm2, xterm, reptyr, disown, coolterm, minicom