CIS251_3

Computer Science Design in PYTHON a basic forward proxy server that can handle HTTP traffic.   The following features must be present:   1. Logging entails recording all outgoing and incoming requests.   2. Adding domains to the blacklist for further security. For example, you may restrict a certain IP address or website. 3..Managing several transactions (i.e. many requests and responses) at the same time to increase performance. 4. Adding domains to the blacklist for further security. For example, you may restrict a certain IP address or website.   I'll offer an upvote to anyone who successfully answers this question.

Explanation of HTTP and the distinction between non-persistent and persistent HTTP, as well as their operation.

network securityResearch The OWASP Top 10 is a standard awareness document for developers and web application security. It represents a broad consensus about the most critical security risks to web applications. The standard defines 10 top threads for web security.   You need to write a report that describes all the 10 threads mentioned in this standard. The report should include the following   Introduction to OWASP top 10 standard Threads description

in a client-server model, the server initiates requests. A) True  B) false

Facebook is one of the most popular social networks where users can post posts to different (text or image) and comment on them • Each user must register beforehand in order to use the system. The user is identified by a name, surname, date of birth, email address (which will also serve for authentication) and a password. • Any user can make a post which contains a text and/or image. Post is identified by a unique code, text used, an identification code for the image and date of post. • A user (including the author of the post) can comment on the post. The comment is characterized by an identification code, text, and date of post. Also, a user may like a comment or post. The system should keep track which user has liked the post/comment, etc. • Users can also exchange messages with each other. Each message is characterized from the unique code, text, date and time of sending as well as information if the recipient has seen the message or not. Write the rational schema, normalization -…

Network endpoints and network devices have different security considerations and implications. A user workstation implies certain security issues that remain in the User Domain while network implications remain part of the LAN or LAN-to-WAN Domain. However, during the course of investigating an intrusion, you may have to source data from logs kept in routing devices and end-user systems. Suppose an attacker intrudes upon one of your servers. How do you reconstruct the events of a crime? Log files are the first place to check for administrative issues and security activity. Log files help you put together a timeline of events surrounding everything from a performance problem to a security incident. You can also identify bad system or network activities by observing anomalies from baseline behavior or identifying certain suspicious actions. Testing ensures that your control and monitoring facilities work as intended and maintain proper operation. Monitoring ensures that you capture…

DNS records, authoritative servers, root servers, and iterative searches are all included.

Can someone help me with the following, it's revision for an exam I'm doing. If your explaining it could you please provide detailed steps of why you did what you did so I know how to do it if it comes up in the real thing!  Thank you so much! :)   An IT administrator is interested in studying server traffic. He believes that the time (inminutes) between requests being sent to a server can be well modelled using a Weibulldistribution with parameters α = 2 and β = 1 b) The median arrival time is defined to be the time for which the probability of beingless than this value is 0.5. Calculate the median time between requests

Explanation of HTTP, the difference between non-persistent and persistent HTTP, and the functioning of each.

How do caching strategies, such as CDNs, reduce the load on origin servers and improve user experience on the web?

Please solve the following. Thank you.

Popular social networking site My+Din is struggling to manage its many popular forums. Recent regulation requires the site to report users engaged in conversations about certain topics. The sheer number of users means manual monitoring is too costly and so the site has asked its many interns to come up with a solution. One intern has theorized that conversations about any given topic will see the same key words used over and over. If the most used words can be identified perhaps manual investigation can be directed towards appropriate forums. Input One line containing a single integer M (1≤M≤104), the number of messages. M more lines each beginning with a user’s name of no more than 20 characters and continuing with the content of that user’s message all in lower case. The total number of characters across all messages, including spaces, will not exceed 2×106. Output Several words, one per line, listing the words used by every single user on the forum, ordered from most to least used…

Explain how semaphores can be used by a server to limit the number of concurrent connections.

For a P2P file-sharing application, do you agree with the statement, "There is no notion of client and server sides of a communication session"? Why or why not?

How does virtualization affect time allocation for hosts and visitors?

Computer Science Draw a UML design for a Simulation of a DNS Server Using Java. DNS is a directory service that provides a mapping between the name of a host on the network and its numerical address and is required for the functioning of the internet.

What are two-phase commit (2PC) and three-phase commit (3PC) protocols in the context of distributed transactions? Compare and contrast their advantages and limitations.

For a P2P file-sharing application, would you agree with this statement: “There is no notion of client and server sides of a communication session”? Why or why not?