SSH Protocols and Products
Following table lists important protocols and products related with SSH.
| SSH Terms | Meaning |
|---|---|
| SSH | A common term used for SSH protocols or products. |
| SSH-1 | The first version of SSH protocol. It was released on July 1995. |
| SSH-2 | More secure and standard version of SSH protocol. SSH-2 protocol was adopted as a standard in 2006. |
| SSH1 | The first implementation of SSH-1 protocol by Tatu Ylonen. SSH1 software was released in 1995. SSH1 is obsolete now. |
| SSH2 | The implementation of SSH-2 protocol by SSH Communications Security Inc. The current SSH client/server product by SSH Communications Security Inc., is named as Tectia. |
| ssh | Client program for SSH protocol is called as ssh (small letters). |
| OpenSSH | OpenSSH is the free implementation of the SSH-2 protocol by the OpenBSD project (https://www.openbsd.org). |
| PuTTY | PuTTY is an SSH and telnet client, developed originally by Simon Tatham for the Windows platform. You can download PuTTY at following link. Download PuTTY . |
| Bitvise SSH server and client | Bitwise SSH server and client are available free for personal and non-commercial use. Download Bitvise SSH server and client at following link. Download Bitvise SSH server and client . |
| VanDyke Software | VanDyke SSH server and client are another commercial products based on SSH-2 protocol. Try VanDyke Software SSH server SecureCRT at following link. Try VanDyke Software SSH server and SecureCRT. |