Unix Essays

In order to access a UNIX system, and use it , you need to connect to the system. You can login: Locally Remotely Login Types In general, there are two ways: Command-line Login GUI Login Connecting Locally Connecting locally means, you are directly logging into the UNIX system. Network connectivity is not required. You could login using the command-line or a GUI interface depending on the system configuration. Example of a GUI login interface on a CentOS machine User enters "username"

Evangeline, My apologies in advance, for I will not be home for much of the day when you read this. In order to save time, I logically figured you could perhaps get started with today’s instructions without my presence, yes? You are an intelligent girl, and I am positive that you can do these simple tasks. Remember our deal and do your best. I may be harsh, but you are both my charge now and my student, as much as you may not truly like it, and I will not be cruel to you. Much. First of all, I

As I was completing my work in Kumon,a math and reading educational center that helps children with standardized testing; all I could think about was what I wanted to get from the prize drawers. Kumon is one large gray room with seven or eight long tables. The owners of Kumon are an Asian couple, Mr. and Mrs. Chang. When I completed my work and hastily checked it over I rushed to turn it into Mr. Chang. He quickly and happily reviewed it, I got a hundred. My best friend Muskaan was right behind me

1.1. Creating objects & Right side panel – brief This panel is the main medium that is used to create ( ) objects, I can also modify ( ) and edit objects as well in addition I can alter different aspects in 3ds max as well. I could also alter the pivot point (gismo) and decide where it origin point is. Here I am given a selection of shapes that will act as objects when placed on the world. Creation method is how I create the object by mouse click allowing me to create the object as a whole or

1. Describe the functions of the kernel, service, and command layers of an OS. The kernel basically acts as the interface between hardware and applications. The kernel is also known as the engine or core of an OS, the outermost part of an operating system that interacts with user commands. Some of the kernel’s tasks are resource allocation, process management, memory management, input/output device management, and security management. It basically mediates access to system resources. The kernel is

Perhaps many are confused about the existing commands linux, this time I will discuss about the linux basic commands used along with examples of its use. 1: Seeing identification (id and group id number) $ Id 2: Looking the calendar date of the system a. Looking at the current date $ Date b. See calendar $ Cal 9 2002 $ Cal -y 3: Seeing the machine identity $ Hostname $ Uname $ Uname -a 4: See who is currently active a. Know anyone who is active $ W $ Who $ Whoami b. Changing finger

The Ritz Carlton service brand emphasizes its brand statement clearly upfront which according to Cesar Ritz ‘The Customer is never wrong’. The creation of the brand concept is based on high service quality requirements or standards set by the upper management. In 1983, the top management headed by Horst Schulze and his team personally took charge of the management of quality. They desired a reliable and predictable quality of service for the brand. Subsequently in 1989, the organisation developed

Giff, Patricia, Reilly., Pictures of Hollis Woods, Dell Yearling, New York, 2002, 166p. Sammy: Hollis Woods is a foster child who doesn’t like to stay in one place for long. She made herself the reputation of being a handful. One thing Hollis loved to do was draw. She drew several memories in her life and always had a special meaning of her own to them all. Hollis was placed with the Regan family. Mr. Regan, Izzy, and their son, Steven. The Regan’s were different from all the other familiar she

How can Hick’s law enhance the usability of a design (bullet points)? Making the choice easier for users. Hick’s law states that the time it takes for a person to make a decision increases as the amount of possible choices increase. So essentially Hick’s law illustrates one’s ability to make decisions with different amount of uncertainty. To fully understand this there are few terms you need to be familiar with: Reaction time (refers to) The time between the onset of a stimulus and the start

Introduction Surveillance is the monitoring of the behavior, activities, or other changing information, usually of people for the purpose of influencing, managing, directing, or protecting them . An automated surveillance system is a substitution for direct human observation. Artificial intelligence algorithms are commonly used to detect what is being observed. There are several aspects of surveillance, some of which include the following: i. Computer and Network surveillance: Monitoring of data

While researching on Windows and UNIX, I found that UNIX has better built-in security and permissions features than Windows (Haas, n.d). While upgrading software from Microsoft, it often requires the user to purchase new or more hardware or prerequisite software, but UNIX on the other hand does not require purchasing (Haas, n.d). UNIX operating system is more stable, faster and more secure compare to windows because most software is

1. Give an example in which the operating system would use a bitmap to manage resource. Answer: Windows, Android like operating systems uses bitmap to manage resources. 2. What is the difference between a stack and a queue? Where would an operating system use each of these data structures? Answer: Stack: It uses FILO method means First in Last out 1. In this it contains sequence of elements and new elements are added at top 2. In this removing elements is also performed from only top. 3

google search Answer: Root User: In Unix-like computer OSes, root is the conventional name of the user who has all rights or permissions (to all files and programs) in all modes (single- or multi-user. The root user can do many things an ordinary user cannot, such as changing the ownership of files and binding to network ports numbered below 1024. The name root may have originated because root is the only user account with permission to modify the root directory of a Unix system. Only a process running

and the signed repositories, would it actually run? Well, if it was written for different versions of Linux then what is installed on the computer then it would not run. Root was mentioned more then once. Root simple put is the superuser account in UNIX. In both the Mac OS and Linux operating systems, the administrator account can make changes to their system such as installing programs and changing documents with the use of the administrator password, but are unable modify system files. This is one

Increase Your Career Ability With CompTIA Linux+ Certification By Nelson Jaques May 23, 2013 Linux+ is a kin group of operating systems almost like UNIX, based and is quick rising as an embedded platform for several web books and AOS phones. The utilization and development of Linux+ is at a stern rate and this comes with another demand for professionals who are adept at Linux+. A Linux+ certification is usually a bonus in such a situation to show one's power within the Linux+ OS. Linux+ Training

at that time . Ready State: It is a state where process is said to be ready if it is ready to perform operation.. Terminated state: It is a state where process has finished execution. 12. What system call creates and runs a new process in the UNIX and Linux systems? Answer: Fork() system call is the one which is creates

Working frameworks were produced to exploit these equipment capacities and run various procedures preemptively. Preemptive multitasking was upheld on DEC's PDP-8 PCs, and actualized in OS/360 MFT in 1967, in MULTICS (1964), and Unix (1969); it is a center element of all Unix-like working frameworks, for example, Linux, Solaris and BSD with its

are also known as replicas. These replicas to select the master use a consensus protocol. The files and directories present a Chubby cell is called nodes can act as a lock. Handles are created every time when a client open nodes, which are similar to UNIX file descriptors.

The year is 1986, Clifford Stoll who manages the computers at Lawrence Berkeley National Laboratory is asked to fix an error in the University of California, Berkeley campus computer usage accounts. After tracking the account in question he soon realizes it is not a student but an unauthorized user gaining root access to the campus systems by taking advantage of a loop hole. In the next 10 months that follow Stoll puts all of his effort in finding out who this intruder is. He borrows computers from

Introduction Within this essay I will endeavour to showcase my knowledge surrounding internet servers and the technologies associated with them. I will discuss both the hardware and software linked with servers as well as comparing and evaluating the different services and protocols related to server use. I will look to not only describe what I know in these areas but critically asses by showing how and where these technologies could be used as well as the potential pro’s and con’s to using them