Of the following, which should be used as a replacement for Telnet for secure remote login over an insecure network?
A.
S-Telnet
B.
SSL
C.
rlogin
D.
SSH
Explanation:
SSH is a protocol for secure remote login and other secure network
services over an insecure network. It consists of three major components: a
transport layer protocol (providing server authentication, confidentiality, and
integrity), a user authentication protocol (authenticating the client-side user to
the server), and a connection protocol (multiplexing the encrypted tunnel into
several logical channels). It should be used instead of Telnet, FTP, rlogin, rexec,
and rsh.
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