Which remote management port is typically used for secure administration of servers?

Which remote management port is typically used for secure administration of servers?

• A. Port 22 (SSH)
• B. Port 80 (HTTP)
• C. Port 23 (Telnet)
• D. Port 25 (SMTP)

Answer: (A)

SSH is used for secure remote administration because it creates an encrypted channel for logging in and issuing commands. It runs on port 22 by default, providing confidentiality and integrity for credentials and session data. This makes it the standard choice for securely managing servers. In contrast, the other services shown are not meant for secure admin tasks: HTTP on port 80 is typically unencrypted (unless HTTPS is used), Telnet on port 23 sends data in plaintext, and SMTP on port 25 is for email delivery, not remote server management.

SSH is used for secure remote administration because it creates an encrypted channel for logging in and issuing commands. It runs on port 22 by default, providing confidentiality and integrity for credentials and session data. This makes it the standard choice for securely managing servers.

In contrast, the other services shown are not meant for secure admin tasks: HTTP on port 80 is typically unencrypted (unless HTTPS is used), Telnet on port 23 sends data in plaintext, and SMTP on port 25 is for email delivery, not remote server management.