Essays on DNS

Final Assignment

Both Bridges and Switches work on the data link layer of the OSI Model. However, switches are more advanced. Discuss how a switch has an advantage over a bridge in a network then elaborate more on the technology implemented in switches to control broadcast domains A bridge is a two interfaces device that creates two collision domains. This is because it forwards the traffic received from one interface only to the interface where layer two devices is connected (Olenewa, 2014). Bridges serves the main function of reading the destination of MAC address to forward the traffic only to the interface where it ...

Integrating Networks:

Integrating Networks:

As we are presented with a multi-domain Windows NT based network where there are two Primary Domain Controllers (PDC) and these are located along with two Backup Domain Controllers (BDC) under what is referred to as the Administration domain, we assume that we are dealing with the Multiple Master Domain Model. To this regard, WATCH has split their Administration domain into two domains as only one domain is possible per PDC in a Windows NT network. The case study also documents that there are several other domains. Assuming domain in this context continues to refer to a Windows NT ...

Introduction

Domain models are essential in the management and organization of networks and domain name services. This will help in the planning of future expansion. In networks that will require additional hosts to the network, a proper plan will accommodate additional hosts with ease. This paper will focus on domain recommendations for Alpha Company. The company has five branches and with the need to have internet access in the corporate network.

Choice of the domain model

The choice of the domain model that fits the description is that of single domain model. Since Alpha has the main headquarters that can be used to manage the other ...

Computer forensic refers to the preservation, identification, extraction, interpretation and documentation of computer evidence (Wiles, Cardwell, and Reyes, 2007, p.2). Such evidence retrieved is usually aimed to be used in a court of law. Electronic crimes increased in the 1970s especially in the financial sector. These crimes resulted because people saw an opportunity of making money by manipulating computer data (Nelson, Phillips, and Steuart, 2010, p.5).

According to Mohay (2003, p.113), computer forensics was first used in the 1970s by the US military and intelligence agencies. Daniel (2011, p.14) notes that computer forensics began in 1984. During this year, the ...

Activity 1

In any network design, one of the main factors to consider is the number of clients served by the network. The number of clients is what forms the backbone of the network to be designed and the amount to spend on the project. The coverage of the network also dictates the best type of cable to use in the network so as to ensure that the project is both economical and efficient.

Taking into account the specifications of the network to be designed, the cabling required is a mixture of both the optic cables, coaxial cables and UTP cables. The ...

What the Tutorial Teaches

The tutorial provides directions on how to secure your home network router. In this case, they are describing how to secure the Linksys network router. Using the default IP address on the router, you can access the home page of the router to be able to change the default settings. The first thing is to change the default password. The wireless network is secured by turning off broadcast option. This will prevent people from finding your wireless network upon Google search. Consequently, change the security mode to WPA2 personal. This is recommended since it allows text passwords that are ...

List of Figures

Figure 3.0.1 Feature extraction. VIII Figure 3.0.2 Event processing. VIII Figure 3.8.1 Basic Architecture of Bayesian Enabled Network XI

The Problem

Cloud Network security is very significant when it comes to online data and transactions. Attackers often examine vulnerabilities within the cloud system. There are malwares and viruses that can be easily detected and those that cannot be detected easily. With advance technology and increase in computing knowledge, network attackers use sophisticated software that can beat most antiviruses and firewalls hence accessing the system without anyone noticing them (Kumar, 2015). Malicious code also referred to as (malware) often grow ...

Pedro J. Gonzalez

ISSC456 American Military University I. Introduction. The use of wireless network has increased due to its low cost and accessibility. Many businesses have switched to the use of wireless networks because of convenience and the ability of their employees having access to data while on the road. Although it is convenient, it does have some vulnerabilities. There are several modes of unauthorized access to wireless networks such as man-in-the-middle attacks, Denial of Service (DoS), identity theft (MAC spoofing), network injection, etc. With an increase of unauthorized access to networks, there are several security measures administrators can ...

[Author Name(s), First M. Last, Omit Titles and Degrees] [Institutional Affiliation(s)] [Include any grant/funding information and a complete correspondence address.] Network security is a means to assure that unauthorized access to assets in the network is prevented. This is vital if we have to protect the CIA triad of Information security, which is to protect the Confidentiality, Integrity and Availability of the data. Unauthorized access could violate one of more of the CIA triad’s principals. These unauthorized accesses also cause loss of accountability and nonrepudiation of actions. This paper examines the concepts of Network Security ...

Introduction

In the entire world, the palliative care has become fundamental in relieving spiritual, mental, social and physical anguish in many people suffering from ailments (Catherine & Karen 2010). Numerous studies have looked at diverse ways that District Nurses effect on quality of life of their attendees. Such effects imply that compassionate care that embraces good communication and holistic approach is paramount right from the beginning of care giving. Notably, there are apparent lack of formal work based support availed to DNs that would help them to cope with emotional demands associated to this provision. Previously, then, needs to palliative address ...

As an Information Technology analyst, I act, upon my mandate, to provide a network solution for XYZ LLC. The proposed network will ensure high connectivity, secure access and scalability for future expansion. Already, a WAN connectivity is in place with ample bandwidth to deliver excellent connectivity.

PROPOSED SOLUTION

businesses competitive edge lies in its ability to develop regional and global presence while offering and maintaining best services at par or better than rivals. In an attempt to control a larger market share in solar panel manufacturing and distribution, XYZ has three branches, Los Angeles, Dallas and Houston. Remote users in Los Angeles need to ...

- Hardware specification for server and client’s compatibility The hardware requirements specification for server and client’s compatibility will involve network adaptor which consists of hardware and software that allows communication between interface and physical network as well as operating system to communicate with the interface. PCMI card, USB or Serial devices are some of the hardware choices. The firmware and operating system driver will be needed to run card and enhance communication with the device respectively.(Wepman,2014).For 100 clients(fewer than 250 users) in this case,1 single core CPU(2.13 GHz),2Gb of ...

The type of domain model that will fit the company and the branches is that of master domain model. With this model, there will be one master that will control the various subnets on the corporate network. In this model, there are different subnets which have their own servers and host computers. There will be a domain for Seattle, Los Angeles, Reno, Portland, and San Diego. All these models will have servers which will manage the applications and access controls. In this model, the access to the domain will be controlled in the headquarters using one control. It is an ...

Introduction and History of Open Source Software

As a computer user, most people will be aware of paid software and open source or free software. Windows, for example is paid software product, as the command lines are hardcoded within the software, and cannot be modified without access rights. Open source, as the name suggests, is any free software product that allows the user to use, modify and redistribute the software. Few examples of free or open source software products are Linux operating system, Mozilla Firefox web browser, and OpenOffice suite. The Free Software Foundation (FSF) and Open Source Initiative (OCI) are the two main responsible bodies that ...

Contoso, Ltd

The company network users have reported that the local private network on their computers, are unable to use the host names to link to the internet destinations, like www.microsoft.com. In spite of using the host names to connect to it. The administrator can choose one of the following actions from the list given below to connect to the host names and enable user’s network: - The administrator can take action on NS2 and NS3 by disabling recursion - The administrator can take action on NS1 by enabling net-mask order - The administrator can use NS1 ...

Lab Partner’s Name:

Room Number 428 Lab Date and Time Wed AM Abstract Bananas are a fruit that must be transported under specific conditions to avoid ripening before they reach their destination. Fruit ripening can be quantified by examining the levels of glucose residues that are hydrolyzed from complex carbohydrates such as starches. This study set out to determine whether banana ripeness could be quantified using a DNS assay. This assay was also used to identify which storage conditions serve best for maintaining bananas during transport. The results of this study indicate that refrigeration can prevent banana fruit from overripening during ...

consequences and how to defend against it Our world changes on a rapid speed and new dangers come with it. As humanity starts to use a computer on a regular basis for almost every aspect of life like pleasure, communication shopping and exploring new dangers appeared. Nowadays we have plenty of things our ancestors have no clue, like internet, cellphones, computer viruses and spoofing. Spoofing is the name for an attack when one party pretends to be someone else. The most common spoofing attacks are MAC-spoofing, ARP-spoofing, IP-spoofing, DNS-spoofing and e-mail spoofing. Let’s take a look at each one of ...

INTRODUCTION

Worldwide Advertising Inc. is a new advertising firm located in Los Angeles and New York. The firm is looking to hire new IT support staff to take over IT management. Prior to that, they need their IT services configured and as such requires a solution which takes into consideration implementation and configuration of core IT services.WAI looks forward to starting with 90 employees distributed in executive departments, accounts and sales, creative media and production, human resource and finance and IT departments. Most of these staff will be located in Los Angeles with at least one person in each of the departments ...

Research and justify whether LSDG will use existing computer hardware that is being used with the Windows XP systems, or if new hardware will be required. LSDG will run Linux on all its machines. The company wants to replace the machines running windows XP with Linux operating system. The specifications for machines running windows XP currently are Processor: Intel Core 2, Memory: 2GB RAM, Hard Drive: 80GB, Network Card: 10/100 Mbps, USB Ports: 4 USB 2.0 and Monitor: 15inch LCD. The minimum requirements for installing Linux variants on desktop/laptop configuration are 700 MHz processor, 512 MB RAM (system ...

AbstractInformation technology disaster recovery plan is a critical asset in a business organization. It allows effectively and quickly processing of information. The employees in any organization make use of voice over internet protocol and electronic mails when communicating. The data transmission between different department make uses electronic data interchange. When is the need for an effective security system to be used and especially when handling critical data such as payment data. Wireless devices personal computers and laptops used by employee’s when creating managing, processing and communication uses information technology resources.A disaster recovery plan like setting up an alternative processing site ...

Overview

World Wide Advertising agency Inc. is a new company specializing in advertising. Currently, the company is hiring staff in its newly established locations New York and Los Angeles. WAI are yet to implement an IT strategy and once they do, all IT operations will be taken over by the IT department. WAI has approached me seeking a solution that describes, implement and configure core IT services within the new organization. WAI is not constrained by financial obligations and thus, require a solution that is best for their needs for the next two to three years. It is recognized that the company’ ...

Information security plan

Executive summary Information security plan is meant to protect any resource that relates to information from multiple security threats so that the continuity is maintained. The security plan is meant to cover all the organization’s information technology assets against any possible threat. To achieve an effective information security mechanism, a suitable set of controlled crucial. The control includes processes, procedures, and policies organizational structure and software functions. The controls need to be formulated, implemented tracked reviewed and improved to make sure the particular security and business goals of the organization are attained. The plan guides the confidentiality, ...

Key considerations behind establishing trust relationships between the two domains

Trust between domains refers to the relationship between domains that enables a domain controller in one domain to authenticate the users in another domain (Gibson, 2001). All domain trust relationships have two domains: the trusted domain and the trusting domain. The types of trust include Forest, Realm, External, and Shortcut (Gibson, 2001). For the purposes of this paper on Quality Corporation (Quality.ad) and Crescent Inc. (Crescent.ad), these considerations regard the Forest Type domains. There are several considerations in the establishment of trust relationships between domains. The first is the characterization of the trust into one of these four categories; ...

Introduction

In order to manage and supervise the operations of the entire company effectively, XYZ Company must consolidate the network infrastructure of the two long-distance sites, and build up one effective and secure network. Each site has its own server-controlled network operating on the Microsoft Windows Server technology. The Dallas site runs MS Windows 2012 Server, while the second site runs MS Windows 2008 Server. The fact that both sites are based on Microsoft Windows Server already gives XYZ Company a major advantage because the consolidation will mainly involve configurations based on the same network operating system. There may be ...

(Author’s Full Name) (Professor Name)

One of the most significant and recent development in network attacks is Distributed Denial of Service (DDOS) attack. This attack aims to make network resources unavailable to its intended users. The attacker targets a large number of machines and simultaneously installs various attack programs in them. DDOS attack frequency has increased globally, with anti-virus programmers struggling to develop new ways of countering such attacks. Some of the most famous DDOS attacks are listed below: - Spamhaus Attack: This was the deadliest DDOS attack, to date. On 18 March 2013, this attack targeted ...

Question 1

Social engineering can be defined as the non-technical way in which intrusion to information systems can be broken into with the use of human interaction and tricks that are more of social than technical. Social engineering is a common means in which virus developers will try to break into a system. Social engineering will try to trick the computer user to give some information that will give a hint to the social engineer to break into the system. The social engineer will try to play what is referred to as a con game which is a way in which they will gain the ...

1. The structure of the internet The internet is an international network of computers and other devices for the purpose of sharing resources. It is a global interconnection of millions of computers all across the world using a standardized protocol (Transmission Control Protocol / Internet Protocol, TCP/IP) to facilitate interconnection of the computers. The internet does not have a structure in particular but the networks and devices used found on the internet conform to a standard as set by the International Standards Organization (ISO). 2. Internet domains Internet domains are managed by a Domain Name Service (DNS). DNS is a hierarchical naming ...

EXECUTIVE SUMMARY

Computer networking is an important concept in a given organization. There is a need to ensure that the connections provide room for future expansion and problem diagnosis is easy to undertake. Computer networking is a process that should be undertaken after careful analysis of organizational needs. This is an important step that is done before delving into the technical details of the computer network. Computer networks allow organizations to communicate effectively and share resources. This paper will focus on the connectivity of XYZ organization and the provisions for the various subnets that will be created. XYZ locations are linked by a wide area ...

Testing web penetration aspect with Kali Linux

Introduction With security issues of the internet becoming a major point of concern for many organizations, there is a need to have testing of the internet to check if there is sufficient security. This is equivalent to auditing the penetration of the organization. Penetration testing is a process where the vulnerabilities that have been identified are real threats or false. One of the methods that an assessment can make use is that of scanning tools which can show the vulnerabilities that exist in a given system. The penetration test would be conducted by trying to hack the given vulnerabilities just the way a ...

Through seamless exchange of information over the internet, security concerns have been raised. The three major information security areas authentication, authorization and confidentiality has been compromised via the internet through hacking, malware and spyware programs. For example, mishandled passwords or codes may lead to stealing of information from the computer systems which in essence has severe consequences in terms of individuals and the companies affected. The pharmacy can suffer from various security threats attributed to behavioral, infrastructural and physical attributes. In this paper, the focus lies on separating security vulnerabilities and discussing their solutions.

PHYSICAL VULNERABILITIES

Physical vulnerabilities affect the ...

ABSTRACT

SAN Solutions Inc., is a multinational company with over 500 employees distributed across headquarters and remote offices. The organization is involved in a significant Department of Defense project and thus need seamless connectivity across its branches, and the headquarters to enhance productivity. Because of the nature of the project, the company forbids any external access of its details outside the U S. As the Director of IT, I am tasked with the responsibility of recommending a secure and efficient network solution to remote branches located in Denver, New York, Los Angeles, Chicago, Colorado. The main areas of concern include accounting, sales, engineering, ...

SDLC

System analysis and design involves step by step processes for developing high quality information systems and websites. An information system combines technologies, people and data to support business processes. Structured analysis uses a series of phases known a system development life cycle to plan, analyze, design, implement and support a website. SDLC models use five steps that include; web planning, web analysis, web design, web implementation and web security and support. Analysis stage requires the gathering of information and particulars pertaining the web site to be developed. The information is solicited from the web users or the business entity. Design stage ...

Discovering DNS

A DNS acts as a database for hosting information. Top-level domains include.com, .edu, .gov, .mil, .org, .net, and .int. These top-level domains represent different institutions and organizations in the world. Domain name servers form a critical part in understanding network security monitoring. According to Shelly and Vermaat (2010), DNS allows computers to locate each other on the internet easily. DNS utilizes both the TCP port 53 and the UDP port 53 for the DNS communications (Bejtlich, 2004). The network analyst will thus require the understanding of the concept of DNS if they are going to analyze traffic (Bejtlich, 2004). Forms of ...

When scientific methods are used in the process of preserving, collecting, validation, identification, analysis, interpretation, documentation, and presentation of digital evidence from digital sources, then the process is called digital investigation. The evidence may be used to facilitate the construction of events deemed to be criminal or are in contrast with the laid down procedures. Digital investigations for an organization differ to digital investigation for law enforcement because of the procedure adopted. Different models of operation have been suggested depending on the complexity of the situation. Digital investigations arise as a result of an occurrence suspected, attempted or ...

As soon as I finished my Associate class in Pre-nursing and feeling well-prepared, I applied for a job in a rehabilitation center in summer, 2012. I arrived early on the day of my interview and was waiting for my turn by the reception, when the DNS came and suggested we both walk to her office. Her extremely tired look surprised me greatly and my astonishment elevated even more when I heard her saying that she had been working for 20 hours non-stop that day. Right at the sound of it, I immediately thought this was a challenge I wanted to go through, ...

Introduction

An organization’s network system is a critical asset that needs maximum security. Network system security involves both physical and logical security. For a company, it ensures security of its network system they have to invest heavily in security. The rate at which automation is done in the business sector is extremely rapid. It, therefore, calls for intense network system security to ensure that the individual’s business and financial information are secured. The most significant information in a pharmacy business is the information concerning the customers, financial information such as billing data and the employee’s information (Rittinghouse, 2009). The information, ...

As the head of North Korean intelligence apparatus, I am about to broadcast a 15 days nationwide action plan, designed precluding economic folding, to assess how the US will respond to the 15-day exercise. The action encompasses six areas of intelligence discipline, which are OSINT, GEOINT, MASINT, HUMINT, SIGNT and Cyber collection.

OSINT (Open Source Intelligence):

Publicly assessable information will be searched and analyzed to assess US response and actions taken. OSIT has been a popular source by the intelligence community. Owing to, globally, newspapers, magazines, radio, TV and additional middling will be scrutinized. In addition, cyber espionages will also be assessed. Teams will be ...

Computer systems at Panther Industries should contain advance processor, Ram with high speed bus and large capacity hard disks. All systems should have high speed local area network card to ensure quickly access to network resources. Wi-Fi connection should be provided to employees in order to connect from mobile devices. VPN connection should be installed to allow access to data server from any remote location. Latest version of Microsoft Windows 7 is needed to be installed on all PCs. Windows Server 2008 should be installed on servers for the security and access control. Windows 7 have best security features. ...

Introduction

Management Controls CEO of the company focuses directors to have best security policy so that their clients data should not go into wrong hands. As company deal with the development of banking software and takes financial data from banks so in case of unauthorized access company's future is at stake. This means strong security is necessary for Company's viability. So company has already updated network and its server by installing most advanced windows server 2008 and windows 7 is installed at all PCs in the head office. Securing Windows Server will be first priority of the company as it ...

In its endeavor to develop its tourism industry, various internet business models are available in the market for exploration. The most appropriate is corporate to client internet business model. This model is a recommendation for the Columbian tourism industry because it suits the country in its endeavor to create a rapport with their clients. In addition, the model provides necessary information to the consumer and makes them buy the product. The model makes the company gain the confidence of the consumer that they are able to provide the service/product the client is wants. The model has been adopted by various companies ...

[Tutor Name]

Answer 1: Cyber attacks as a result of today’s inadequate state of cyber security have resulted into significant financial losses for home users where they fail to maintain sufficient security systems on their computers. To combat such issues, Internet Service Providers has the ability of potentially improving the security of home users by detecting and quarantining customers whose machines house malware. ISPs will provide upgraded security software to users and educate them on why cyber security is crucial (Wood & Rowe). ISPs avoid malicious cyber activity and let users access the Internet enabling them to closely study the ...

Recommended Design

The recommended design is a client server network. The client server network involves the connection of at least two computers. The client computer, in this case, is the computer that requests an application. These may include the different workstations and laptops. The server is the computer that takes action on the requests made by clients. Implementation of the client-server network becomes efficient since, in case of business expansion, fewer disruptions will be experienced. The resources and data security will be handled through the server. This type of network design allows easier access to the server from various locations and platforms ...

In the first week we learnt about HTTP refers to Hyper Text Transfer Protocol, a term that I had heard about many instances before the first lecture. It is used in telecommunications and networks, and it made me interested in the topic since it was applicable to the internet and websites, and I had used it when browsing the internet although I did not understand its applications fully. It was exciting to learn about the previous version of HTTP (version 1.0) and the newer version that is currently in use, HTTP 1.1. The current version of HTTP is a faster upgrade ...

Executive Summary

The Woodgrove Bank has offices in multiple countries and as a form of expansion requires a network infrastructure for the segments within the enterprise. The new network infrastructure needs to take into consideration various aspects of the expansion that has taken place and the ones that are anticipated by the institution. The new network infrastructure needs to take the following points into consideration: the incorporation of the new Canadian branches into the Toronto hub site and regional bank in Washington should also be integrated into the network. The regions are also supposed to operate independently and the failure of any of ...

Plan to incorporate Nesting Strategies for Fantasy Games network

Site replication topology

How DNS integrates with Active Directory If you install Active Directory on any server, you encourage the server to the task of a domain monitor for a respective domain. When finishing this process, you are reminded to make specific a DNS domain identity for the domain of Active Directory for which you are entering and encouraging the server. If in the cause of this process, an authoritative DNS server for the domain that you made specific either cannot be traced on the network or is not compatible with the DNS dynamic update policy, you are reminded with the ...