PLEASE ANSWER VERY CAREFULLY. Thank you 66) A security administrator at a corpor

Question

PLEASE ANSWER VERY CAREFULLY. Thank you

66) A security administrator at a corporation wishes to secure a Linux server that hosts multiple services. The administrator needs to ensure remote administration services remain accessible Other services that need to remain accessible are SMTP, TFTP, DNS, and FTP. All other services should be inaccessible from the rest of the network. The administrator runs a network status tool on the server and receives the following output: PROTO LOCAL ADDRESS TCP 0.0.0.0:22 TCP 0.0.0.0:25 TCP 0.0.0.0:53 UDP 0.0.0.0:69 TCP 0.0.0.0:88 TCP 0.0.0.0:110 TCP 127.0.0.1:123 TCP 127.0.0.1:631 TCP 192.168.1.10:20 0.0.0.0:* TCP 192.168.1.10:1 0.0.0.0:* UDP 192.168.1.10:67 0.0.0.0: TCP 192.168.1.10:143 0.0.0.0: UDP6 :::547 FOREIGN ADDRESS 0.0.0.0: 0.0.0.0: 0.0.0.0:* 0.0.0.0:* 0.0.0.0: 0.0.0.0: 0.0.0.0: 0.0.0.0:* STATE LISTENING LISTENING LISTENING LISTENING LISTENING LISTENING LISTENING LISTENING LISTENING LISTENING LISTENING LISTENING LISTENING Which of the following actions should the administrator take to meet these requirements? A) Block ports 20, 22, 69, 143, and 547 on the host firewall, B) Block ports 20, 67, 123, 143, and 547 on the host firewall C) Block pens 20, 88, 123, 547, and 631 on the host firewall D) Block ports 21, 25, 88, 143, and 631 on the host firewall, E) Block ports 67, 88, 110, 143, and 547 on the host firewall

Explanation / Answer

One of the remote management service is provided by SSH service which
allows secure shell login. This service runs on port 22. In all the given
options this port number is appearing in option A. Hence the correct option
is A)

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.