Distributed Operating System Security
Anthony Fuciarelli
3030 Operating Systems
Dr. Michael Johnson
22 November 2016
Distributed operating system security is that of which security is implemented on a system of connected computers that share and run information. This type of security system is different than your average security features that a person may have on just a laptop or home computer system. The biggest challenge is keeping the information that flows in a distributed operating system safe, as well as protect against the multiple threats that security in a distributed operating system face. Its important to understand how a distributed operating system security works, as well as the many different types of threats that the distributed operating system security will face. Before the actually security in a distributed operating system is discussed its important to understand what a distributed operating system is and how its different from what most users are used too. A distributed operating system can be described as an operating system or OS that runs on multiple central processing units or CPUs but to a user it seems like as if its all one machine. An example would be multiple computers linked together on one network that includes other devices such as printers or scanners. Every user that accesses these computers on this network has access to the resources and files that are on the network, as well as the devices that are connected.
In developing Windows Server 2008, three key aspects of security were imperative in achieving goal to create our most secure operating system to date .These new security features provide unprecedented levels of protection for a company's network, data, and business, making Windows Server 2008 the most secure Windows Server ever..
In this modern day and age of computing, networks are a huge part of IT. It is important now more than ever that data sent over any network, whether it be a LAN (Local Area Network) or WAN (Wide Area Network; The Internet) is kept safe, private (when required) and uninterrupted in
A computer is secure if you can depend on it and its software to behave as you expect I this assignment I will writer about how Linux provides security to you information. The major technical areas of computer security are usually represented by CIA confidentiality, integrity, and authentication or availability. It means that information cannot access by unauthorized people.
Back in 1983 Department of Defense published series of book about security which had color code! The red book was related to network security and the security of system was discussed in the orange book. Base on the orange book an operating system based on its secure design and implementation can be in one of these categories: D, C1, C2, B1, B2, B3, and A1 which is from no security up to Verified protection. Base of Orange book and another evaluation system called Common Criteria both Linux and Windows has similar security. And most security based on how one server implements and being used on each platform.
As basic users, security is one feature that most of us overlook when it comes to operating systems until it is too late. In this paper we will discuss the security flaws within the Windows Operating system, and then discuss countermeasures to fix the system flaw.
First off to start the assignment only requires writing about four different types of failures that can happen on a distributed system, however there are many more than just four types of failures that can happen and they are all important to learn about if you are going to work with a distributed system so that you know how to deal with and handle each one of them.
Security is almost certainly the most difficult aspect of a network to perfect. It is important to have the correct procedures and components in place to make certain network security is being accounted for and addressed on any given network. The journal, “Future Generation Computer Systems” elaborates on this necessity for an information system. “Future Generation Computer Systems”, this component of a network is discussed thoroughly. “Essentially securing an Information System (IS), involves identifying unique threats and challenges which need to be addressed by implementing the appropriate countermeasures” (Dimitrios Zissis, Dimitrios Lekkas, 2012). This was achieved through configuring access lists as well as CHAP configuration on the routers connecting to the edge
The framework of security policy is defined to construct a structure by the help of which policy gaps can be identified in an easy manner. A system specific policy would assist to ensure that all employees and management comply with the policies. This is also used to maintain the confidentiality for user authentication would assist in the confidentiality aspect of security, maintain integrity (There are several limiting rules or constraints which are distinct in the relational data model and whose work is to maintain the data’s accuracy and maintain its integrity.), availability and authenticity of the system. Access controls are a collection of mechanisms that work together to create security architecture to protect the assets of an information system. One of the goals of access control is personal accountability, which is the mechanism that proves someone performed a computer activity at a specific point in time. So, the framework acts as the guideline
Information will only have value if customers can access it at the right times. Availability can be affected by system errors, and malicious attacks as well as infrastructure problems. Availability is ensured by maintaining hardware as well as repairing hardware immediately when need arise. A correct functioning operating system should also be maintained in the environment free of software conflicts. Adequate communication bandwidth should also be addressed as well as preventing bottlenecks from occurrence.
When installing any operating system regardless of whether it is a Linux or windows based operating system it is essential that steps are taken to ensure the security of the operating systems. Ensuring the security of an installed operating system before for it is put into use is known as system hardening. System hardening is done by taking known vulnerabilities in an operating system and making security enhancement to mitigate these vulnerabilities. Thus, it is important to know the vulnerabilities which are posed by each operating system and the ways in which they can be mitigate. Below are three common vulnerabilities in windows operating system and recommendations on how to mitigate them.
Network security has changed significantly over the past years. There is more and more data to monitor and analyze in order to detect the activity of your data and systems. Securing a network has many variables. Password authentication, network access, patches, anti-virus protection, intrusion detection, firewall and network monitoring tools are just a few of the things you can do to protect yourself.
There are advantages and disadvantages of Linux operating system. The first advantages of Linux operating system is it is free to obtain [3]. Unlike Microsoft, Linux distribution can be installed on more than one computer without any cost charged [3]. Besides that, Linux can run perfect on old computers and enable users to browse the Internet, email, play games, create and edit documents and others [3]. In security aspect, Linux is much stronger than Windows. This is because Linux uses smart authorization management [5], which requires user to authorize any action that might harm their computer by entering the password [5]. By this way, users are less likely to be tricked into installing malware and running virus programs [5]. In addition, if user faces any technical problem, they can visit any of the Linux online forums and post the
Customer Needs- Security systems are required by people to0 keep their homes safe, it gives them a sense of safety for their personal belongings, when they are away from their home.
What is Operating System Security, Operating system security is the process of ensuring OS integrity, confidentiality and availability also OS security refers to specified steps used to protect the OS from threats, viruses, worms, malware or remote hacker. OS security include all avoiding-control techniques, which safeguard any computer information from being stolen, edited or deleted if OS security is included. OS security allows different applications and programs to perform required tasks and stop unauthorized interference. OS security may be applied in many ways. We 're going to discuss following topics in this article. A brief description about security and what are the types of encryption and what is Authentication, One Time passwords, Program Threats, System Threats and Computer Security Classifications.