Which protocol is preferred for secure remote management over the network?

Which protocol is preferred for secure remote management over the network?

• A. Telnet
• B. HTTP
• C. FTP
• D. Secure Shell

Answer: (D)

When you need to manage devices remotely over a network, you want an encrypted, authenticated session that protects both the data you send and your credentials. Telnet transmits everything in plaintext, so passwords and commands can be read by anyone snooping the network. HTTP and FTP aren’t designed for secure remote administration, and FTP in particular sends user credentials in the clear. Secure Shell, on the other hand, creates an encrypted channel for remote login and command execution, with strong authentication and data integrity. It shields commands and output from eavesdropping, tampering, and impersonation, and it also supports secure file transfer (SCP/SFTP) and features like port forwarding for protecting additional services. For these protections and capabilities, SSH is the preferred protocol for secure remote management over the network.

When you need to manage devices remotely over a network, you want an encrypted, authenticated session that protects both the data you send and your credentials. Telnet transmits everything in plaintext, so passwords and commands can be read by anyone snooping the network. HTTP and FTP aren’t designed for secure remote administration, and FTP in particular sends user credentials in the clear. Secure Shell, on the other hand, creates an encrypted channel for remote login and command execution, with strong authentication and data integrity. It shields commands and output from eavesdropping, tampering, and impersonation, and it also supports secure file transfer (SCP/SFTP) and features like port forwarding for protecting additional services. For these protections and capabilities, SSH is the preferred protocol for secure remote management over the network.