Short for Open Secure Shell, OpenSSH is a free suite of tools (similar to the
SSH
connectivity tools) that help secure your network connections. OpenSSH
encrypts
all traffic (including
passwords) to effectively eliminate eavesdropping,
connection
hijacking and other network-level attacks.
The OpenSSH suite includes the ssh program that replaces rlogin and
telnet, and scp which replaces rcp and
ftp. OpenSSH has also added sftp and sftp-server
which implement an easier solution for file-transfer. OpenSSH comes in two
downloadable distributions: the native OpenBSD distribution and the
multi-platform portable distribution. OpenSSH is developed by the OpenBSD
Project.