SSH had been around for some five years or so before OpenSSH arrived. It slowly gained popularity on telnet/SSL and kerberized telnet because of the trivial sma

SSH had been around for some five years or so before OpenSSH arrived. It slowly gained popularity on telnet/SSL and kerberized telnet because of the trivial small scale deployment, but also because it was a drop in replacement for rsh. Had it been fundamentally different it wouldn't have gone so easy, and I suspect the familiar language helped there.