Global Knowledge’s Red Hat instructor Brad Smith offers some basic training in the white paper, “7 Things Every System Administrator Should Know About OpenSSH.” This introduction to OpenSSH covers:
- The Basics
- Key-based authentication
- Remote execution
- Piping over SSH
- File transfer over SSH
- Tunneling other protocols over SSH
- Server configuration options
Open SSH was developed as part of the OpenBSD project and is installed by default on most modern BSD and Linux-based operating systems, including Red Hat Enterprise Linux and Fedora.
TechRepublic writers have also written some informative tips on OpenSSH if you want to continue learning about this popular protocol:
- Realize the flexibility of OpenSSH
- Specify who can log in via OpenSSH
- Find and fix weak OpenSSL/OpenSSH keys: Debian-based Linux vulnerability
- Protect SSH from brute force password-cracking attacks
- How do I… Create secure tunnels for client-server communication with OpenSSH?
- Save time managing multiple systems with Parallel SSH
- Chroot users with OpenSSH: An easier way to confine users to their home directories
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