as`far`as`i`am`concerned,`the`code`i`have`written`for`this`software`can`be`used`freely`for`any`purpose\.`any`derived`versions`of`this`software`must`be`clearly`marked`as`such,`and`if`the`derived`work`is`incompatible`with`the`protocol`description`in`the`rfc`file,`it`must`be`called`by`a`name`other`than`ssh`or`secure`shell`\.