The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.
OpenSSH is suite of network connectivity tools that provides secure communications between systems, including:
- scp
Secure file copying.
- sftp
Secure File Transfer Protocol (FTP).
- ssh
Secure shell to log on to or run a command on a remote system.
- sshd
Daemon that supports the OpenSSH services.
- ssh-keygen
Creates DSA or RSA authentication keys.
Unlike utilities such as rcp, ftp, telnet, rsh, and rlogin, the OpenSSH tools encrypt all network packets between the client and server, including password authentication.
OpenSSH supports SSH protocol version 1 (SSH1) and version 2 (SSH2). In addition, OpenSSH provides a secure way of using graphical applications over a network by using X11 forwarding. It also provides a way to secure otherwise insecure TCP/IP protocols by using port forwarding.