EBK A+ GUIDE TO HARDWARE
9th Edition
ISBN: 8220101454188
Author: ANDREWS
Publisher: YUZU
expand_more
expand_more
format_list_bulleted
Concept explainers
Expert Solution & Answer
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...
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
You 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?
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.
a.
Use a network-based firewall for this purpose
b.
Use IDS to bypass security protocols
c.
Use proxy servers to mask Internet activities
d.
Use a packet-filtering firewall for this purpose
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.
Chapter 8 Solutions
EBK A+ GUIDE TO HARDWARE
Knowledge Booster
Learn more about
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
- As an attacker, you were able connect to a legacy Internet protocol and locate a file with sensitive information. Think about the root cause or root causes of this problem, then answer the following questions: • What are some root causes of storing personal information in clear text files? • What are some root causes of using an FTP service on the internal network? • What are some root causes of having anonymous login enabled on FTP service?arrow_forwardYour 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_forwardWhat is the IP address of the firewall on the local LAN?arrow_forward
- Can you recommend any other kinds of firewalls except router-based ones?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_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_forward
- Your 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_forwardWhat are the names of different firewalls besides network router based?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_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_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_forwardA client complains that since the new firewall was installed, he or she has been unable to transmit webmail. What firewall ports should be investigated?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Comptia A+ Core 1 Exam: Guide To Computing Infras...Computer ScienceISBN:9780357108376Author:Jean Andrews, Joy Dark, Jill WestPublisher:Cengage Learning
A+ Guide To It Technical SupportComputer ScienceISBN:9780357108291Author:ANDREWS, Jean.Publisher:Cengage,
Principles of Information Security (MindTap Cours...Computer ScienceISBN:9781337102063Author:Michael E. Whitman, Herbert J. MattordPublisher:Cengage Learning
A+ Guide to Hardware (Standalone Book) (MindTap C...Computer ScienceISBN:9781305266452Author:Jean AndrewsPublisher:Cengage Learning
Comptia A+ Core 1 Exam: Guide To Computing Infras...
Computer Science
ISBN:9780357108376
Author:Jean Andrews, Joy Dark, Jill West
Publisher:Cengage Learning
A+ Guide To It Technical Support
Computer Science
ISBN:9780357108291
Author:ANDREWS, Jean.
Publisher:Cengage,
Principles of Information Security (MindTap Cours...
Computer Science
ISBN:9781337102063
Author:Michael E. Whitman, Herbert J. Mattord
Publisher:Cengage Learning
A+ Guide to Hardware (Standalone Book) (MindTap C...
Computer Science
ISBN:9781305266452
Author:Jean Andrews
Publisher:Cengage Learning