radÂ·iÂ·cal. (rÄdâ²Ä­-kÉl) adj. 1. Arising from or going to a root or source; basic: proposed a radical solution to the problem. 2. Departing markedly from the usual or customary; extreme or drastic: a radical change in diet.
rlogin (remote login) 1  Securing VMware Virtual Infrastructure with Centrify's Identity and Access  ... Rlogin (remote login) is a UNIX command that allows an authorized user to login to other UNIX machines (hosts) on a network and to interact as if the user were physically at the host computer.
Rlogin is considered useful for simple logins that don't require a lot of control over the client / host interaction , but is thought to be less useful than Telnet where a lot of customization is desired , for multiple sessions , for connections between very distant terminals or to terminals that are not running UNIX , for that matter , since rlogin ...