ABSTRACT: The domain naming server is a very important component which virtually plays a key role in every internet transaction. DNS plays role of a distributed database that helps in convenient storing and retrieving of data records. DNS now works well and it is also sometimes mentioned that any new changes added to the present DNS may contribute to interruption to its functionality and can also contribute towards additional complexity which is undesirable current networks and future networks rely essentially on DNS and it is important that DNS should be much secured. The DNS can be easy attacked and such attack can cause dire consequences so it specifies the importance to use the secured version of DNS to avoid such consequences. To employ such a version involves more cost. Domain Names are converted into the corresponding IP address by using the Domain Naming Server. There are threats to DNS system like packet interception, query predication and cache poisoning. Data integrity and Data origin authentication are the two essential security requirements to have a secure DNS. We present a survey paper in which we observe the possible attacks on DNS and found that Public key cryptography (PK-DNSSEC) and Symmetric key cryptography (SK-DNSSEC) are the two approaches for secured DNS. SK-DNSSEC cryptography is good for recursive name servers and PK-DNSSEC cryptography is better for referral and authoritative name servers. PK-DNSSEC is suitable for static data and when data is
With the ever increasing surge of digital communications and transactions, a tougher level of security is essential in order to safeguard the user and their data transactions. Systems, personal computers, mobile phones, servers, and even smart cards are all being used everywhere and there is a need to secure communications. With the influx of data management, there is a clear race between the two challengers in the game known as Information Security between developers and the hackers. PKI was designed to influence the Internet infrastructure for means of communication (Samuelle, 2011). While decreasing antagonistic misuse of data, reducing data theft, and providing an extra layer of trust through key pairs and
The Database Management System of a healthcare organization is an application to perform administrative tasks on a database and interacts with the data stored in the databases. Years ago information was managed by a hands-on method such as files in the file cabinet. Now, databases are utilized by technology to drive and manage information. These “databases are an organized collection of data typically stored in an electronic format. Databases allow input, manage, organize, and retrieve data quickly” (Cornell, and Morris, 2015). Then Technology takes the data collected and transforms it into information which becomes knowledge to the users. The purpose of the study is to examine the use of the database system in nursing and to determine the benefits and challenges of the healthcare organization to use database systems and data.
This paper discussed the Distributed database systems which are systems that have their data distributed and replicated over several locations; unlike the centralized data base system, where one copy of the data is stored in one location.
Public key infrastructures (PKIs) are necessary to help ascertain the identity of different people, devices, and services. In a nutshell, PKIs go way beyond the use of user IDs and passwords, employing cryptographic technologies such as digital signatures and digital certificates to create unique credentials that can be validated beyond reasonable doubt and on a mass scale ("What is pki?" n.d., p. 1).
Working as a marketing assistant for a consumer electronics company, I am in charge of setting up my company’s booth and equipments at trade shows. Prior to any show, I meet the marketing managers to determine the equipment and displays needed for the show. These are then scheduled for delivery by a shipper to the show site. Once delivered, I supervise the setting up of the booths and equipment by the trade show personnel.
Introduction: A company called Ian’s & Co currently employs a team of IT technicians to manage their IT infrastructure and also support the IT users. Also quite recently the company has taken over a similar but a smaller company which is also employs technical support staff in the same way.
To be really useful, indicators should be applicable to the user and not just technically
Manasa Cuddalore (000726927), Department of Computer Science, Lawrence Technological University. This is a final research paper for 4568-Distributive Database Systems (MCS-6323) with instructor Mazin Al Hamando.
A typical understanding of "distributed computing" is ceaselessly developing, and the wording and ideas utilized to characterize it regularly need illuminating. Press scope can be ambiguous or may not completely catch the degree of what cloud figuring involves or speaks to, here and there reporting how organizations are making their answers accessible in the "cloud" or how "distributed computing" is the route forward, however not inspecting the attributes, models, and administrations included in understanding what distributed computing is and what it can get to be.
At the U.S. Census Bureau, hundreds, perhaps more than a thousand heterogeneous databases are currently operating. Some divisions have standardized the database technology on Oracle, while others are using a combination of Sybase, MySQL, SQL Server, etc. These Relational Database Management Systems (RDBMSs), supporting many databases and applications and each hosted on dedicated servers, are often under-utilizing the server resources available to them. Such a database infrastructure, therefore, is not cost-, or resource-effective from a maintenance or administrative standpoint. Consequently, the best solution to mitigate these issues involves the implementation of database consolidation technology. Database consolidation is the process of centralizing database resources, so that they are shareable among several databases and instances. In other words, it is the process of consolidating databases from multiple servers onto one or fewer servers. For example, Multitenant Architecture of Oracle 12c moves the database management principle to a completely new level with database consolidation. Consequently, for the U.S. Census Bureau, consolidation initiatives such as the following are beneficial:
Database consolidation is the process of centralizing and sharing of resources for multiple databases and instances. As datacenters are increasingly overrun with databases, loaded with essential applications, server sprawl creeps in and continues to sprawl.
In the recent times, hackers or attackers, because of technological advances, are trying to mislead the user by various attacks. As we discussed some of the attacks in the above mentioned “Type of Attacks”, now we shall look into a common process of DNS Hijacking where DNS Zoning along with signatures and keys can be more helpful.
Replication: It is process of maintaining two congruent databases such that even one crashes the other node can be used as a backup. As these databases are stored in different geographic locations there will be a significant reduction of network load.
Roger K. Doost, (2002) "The need for change in the way we teach accounting information systems", Managerial Auditing Journal, Vol. 17 Iss: 5, pp.277 – 282
From an operational point of view, it has to be able to retrieve both online and offline DNS packet captures. Thus, it can be used as an online monitoring tool, but can also be applied as an offline incident handling tool. The first component is a passive DNS sensor that is a simple packet capturer filtering DNS related traffic. This sensor should be placed between the recursive DNS server and the upstream DNS servers and its purpose is to listen for DNS replies, filter data and feed the retrieved information into the centralized storage which is here a relational database system. This sounds simple in theory, but in practice this tends to be more complex. Many DNS replies are