Lab Manual For Comptia A+ Guide To It Technical Support
10th Edition
ISBN: 9780357440780
Author: Jean Andrews, Joy Dark, Jill West
Publisher: Cengage Learning
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Chapter 8, Problem 6TC
Explanation of Solution
Given:
A server that can be used with protocols IMAP4 and SMTP.
To find:The ports that should be opened in the firewall.
Solution:
Port 993 is used by IMAP secure protocol...
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Your network is protected from threats in the outside world by a firewall.Be sure to stick to these guidelines when operating the packet filtering program.
Johnathan is the network engineer of an organization that restricts the use of certain webpages. As he does not have any pending work, he decides to take a break and watch a movie online until a task is assigned to him. Analyze which of the following actions is best suited for him in this situation so that the IP address of the organization is not compromised.
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Chapter 8 Solutions
Lab Manual For Comptia A+ Guide To It Technical Support
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Your firewall is configured to allow traffic to flow in and out of your network. GIVEN THE SETTING BELOW FOR THE FIREWALL RULE: Rule Name: DNS Rule Source IP: DNS / Source Port: 53 Destination IP: Any / Destination Port: * Protocol: Any What traffic flows through the firewall? IF SOME ACTIVE ATTACKS ARE ADDED FROM THE LIST. Is the rule sufficient to allow traffic to flow for a typical network? Why or why not? Do any of the active attacks now work against machines behind the firewall?arrow_forwardYou have port scanned an Internet-facing web server. The following ports are open. 23, 80, 443, 8080 and 63524. What can you tell me about this server from a security perspective? Think like an attacker… how does she see this server? What steps would you take next to plan your attack?arrow_forwardAn administrator notices SMTP traffic is being blocked by the company firewall. Which of the following ports should be opened? A. 25 B. 53 C. 110 D. 443arrow_forward
- Can you recommend any other kinds of firewalls except router-based ones?arrow_forwardWhat is the IP address of the firewall on the local LAN?arrow_forwardYour network devices receive IP addresses using DHCP. Your network monitoring gear detects a significant amount of traffic inside the engineering department from many of the hosts there and one particular device. A little analysis if the traffic reveals that the target device is an unsanctioned server. What 5 policies should be in place which should prevent rogue devices on the network? What 5 security risks might exist on the detected server which are beyond your capability to fix?arrow_forward
- What are the names of different firewalls besides network router based?arrow_forwardAs a network administrator, you are already aware of the possible option of using a default trust relationship between a network device and another by a hacker to access an entire network. Which of the following security measures will you use to prevent a possible DoS attack that can be induced by sending high volumes of router advertisement messages? 1. DHCP Snooping 2. CoPP 3. RA guard 4. DAIarrow_forwardWhich of the following is the most crucial function performed by a firewall?Presently, I am working on a packet-filtering program. Please tell me where I may get a set of guidelines to follow.arrow_forward
- You have ports scanned an Internet-facing web server. The following ports are open. 23,80,443,880 and 63524. What can you tell me about the server from a security perspective? Think like an attacker... how does he see this server. What steps would you take next to plan your attack?arrow_forwardYou are evaluating port scanning countermeasures to help prevent an attacker from acquiring information about your network. The options you are considering are the deny-all approach, firewall testing, and security awareness. Answer the following question(s): Which countermeasure is likely to offer the most protection, and why? Which countermeasure is likely to offer the least protection, and why?arrow_forwardJane Smith is responsible for security at the ABC Company. She has a moderate budget with which to purchase security solutions. To date, she has installed a router-based firewall between the network and the outside world. She also has a commercial virus scanner on every machine on the network. What other actions might you recommend to her? Would you recommend a different firewall? Why or why not?arrow_forward
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