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Zorluk: OrtaNetworking Ports and Protocols

A network technician is configuring firewall rules to secure administrative access for a newly deployed web server. The management policy requires enabling secure encrypted command-line administration and secure encrypted web management interfaces while blocking unencrypted legacy protocols. Which of the following port and protocol combinations must the technician permit through the firewall to meet these requirements? (Select TWO.)

  1. TCP port 22 for SSHCevap
  2. B
    TCP port 80 for HTTP
  3. TCP port 443 for HTTPSCevap
  4. D
    TCP port 23 for Telnet

Cevap

The technician must permit TCP port 22 for Secure Shell (SSH) to enable encrypted command-line administration and TCP port 443 for Hypertext Transfer Protocol Secure (HTTPS) to enable encrypted web administration.
SSH (TCP port 22) satisfies the requirement for secure command-line administration, while HTTPS (TCP port 443) fulfills the requirement for secure web management. Both protocols encrypt session traffic to prevent eavesdropping and credential theft.

Adım Adım Çözüm

1
Determine the required service functions
The requirements demand secure command-line administration (SSH) and secure web management (HTTPS).
Unencrypted protocols (Telnet and HTTP) send credentials in cleartext and violate security policy.
2
Map the secure protocols to standard transport port numbers
SSH uses TCP port 22 and HTTPS uses TCP port 443.
Firewalls filter network traffic based on destination TCP/UDP port numbers associated with specific services.

Anahtar Kavram

Standard port assignments for secure remote access (SSH on TCP 22) and secure web communications (HTTPS on TCP 443).
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Konular

Networking Ports and Protocols

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