File Management Paper – Unix® File Permissions Joe Guckiean POS/355 April 15, 2013 Bob O'Connor File Management Paper – Unix® File Permissions The name Unix® refers to a play on words rather than being an acronym. During the mid-1960 an operating system was developed at MIT that allowed multiple users to work on a system at any one time. It was called Multiplexed Information and Computing System (MULTICS). In the late 1960s, closer to 1970, a couple programmers at Bell Laboratories wrote an assembler to interface with a DEC PDP-7. Unlike MULTICS, this version allowed only one user to access it at a time. One of the programmers kiddingly called it Uniplexed Information and Computing System (UNICS) pronounced Unix. In the …show more content…
In Unix® there are three sets of permissions that can be modified at the folder and file level; user, group, and the world. In this illustration, user and group permissions will be discussed. To begin, a command at the console must be executed to create the user group. The syntax is: groupadd [g- gid [-o]] [-r] [-f] groupname. Simply typing in: groupadd group_name will suffice. Groupname is where you put in the specific name of the group. If you don’t specify additional parameters, the system will use the defaults. Following the creation of the group, the users must be added into it. Execute this command to add the existing users to the new group, Usermod –G <newgroup> <user>. Since there are 4990 user, a script would come in handy adding the users to the group. The VI editor is a built in tool that allows the building of scripts. Now the real work begins, defining the permissions for the file. From the console, navigate to the directory that contains the file that is to be shared. Type in this command to view the current permissions on the file, ls –l (those are lowercase L’s). This command will allow the changing of permissions either at a user, group or global level. Chmod {a,u,g,o} {+,-} {r,w,x} files a = all user u = the owner g = group o = others (neither u or g) | Plus (+) =give permissionMinus(-) = remove permission | r = Read-onlyw = Read/Writex = Execute | Files = single or multiple files |
Instructions 1. Keep a pen or pencil and place your binder on the back table. 2. Each group needs to assign the following responsibilities: . 1 member to be the recorder (secretary) - you will be writing on chart paper. .1 member to be the leader - lead the group discussions & make sure the group gets the tasks done; keeps track of time .2 members to present the group final information/consensus
Linux was originally developed as a hobby project by LINUX Torvalds. It was inspired by minx, a small UNIX system developed by
Authorization is the act of checking to determine if a user has the proper permission to access a file or perform an action, after the user has properly identified themselves through authentication (Username/Password). Authorization is provided to users based on a job requirement or a need to know that allows them to access the required material. Authorization is usually determined when a user first gains access to a system but may change over time. If a change occurs that requires more or less authorization for a particular employee, the concerned supervisor should contact the appropriate authority to make the change.
I setup windows 2008 server create Microsoft Active Directory(AD), AD can centralize all user accounts for management and setup use right to access File Server permissions can enhance the level of flexibility in management.
When deciding how to grant access to users, the main concept is limiting access. Users should be granted only based on level of permissions they need in order to perform their job duties. By placing users into groups according to their job titles in an organization, this will provide these users access to company information and resources in the network. These group assignments will allow an organization to give users only what they need to complete their job tasks and ensure that unauthorized access is limited.
Called and got permission from Steven to make the permission changes Simone specified. Confirmed she had access to the Payroll folder. Created a new Personnel listing RW group and added Simon to the group. Locked down the vacation and reimbursement folder and created an RW group for both. Added Simone to both groups. Called Simone and had her log off and back on. Confirmed her permissions were
2. Follow the step 1,2,3,4,5 in the detailed instruction to upload your assignment 2 in your group discussion forum.
A - File Management is where the user is able to not only create files but they can do the following – delete files, copy and paste files, cut, move files, rename files and form folders to store these files. By doing this it means it’s significantly quicker to find previously stored files, and being able to create separate folders and manage those means that all your data can be more organised, whereas if you don’t name files/organise them, you’re at risk of losing files and wasting time trying to find them. File management is an extremely important feature because allowing you to rename your files means that you know exactly what that document is, and if the user were having to upload an assignment they would know exactly which to upload, and not only that but it means that if other people need access to specific files and they’re named correctly it means all they have to do is type in my computer the file name. Having the
The user can share the files with other peers and can set permissions for the files.
These are the system binary files that the system needs to run for all users
The roles for logins should be controlled by the administrator and setup under the server management>Add Roles tool especially for the File share server. A domain could be setup to control user access, but it would also need to be assigned on each and every local machine. For a company so small it might just be easier to assign permissions for specific groups for the read, write, modify and full control on the file
Depending on your personal preference and need, there are a variety of operating systems available to users today. Whether it’s MAC OS, UNIX, Windows, etc they each have their own aspects and appeal that draw users in. The spotlight however, for the duration of this paper will be placed on a derivative of the UNIX family of operating system, Linux. The topics covered will include the history to include a handful of versions (distributions).
Unix is a registered trademark of The Open Group that refers to a family of computer operating systems. Officially licensed Unix operating systems include OS X (Apple), Solaris (Oracle), AIX (IBM), IRIX (SGI), and HP-UX (Hewlett-Packard).
Linux is then officially belongs to the world [2]. Linux kernel was first published under its own license by Linux, which had a restriction on commercial activity under its own license [2]. GNU GPL, which used in version 0.99 was then published in the mid-December 1992 [2]. In 1996, Linus announced that the mascot for Linux wound be a penguin [2]. This is because Linus was bitten by a penguin on his visit to the National Zoo & Aquarium at Canberra [2]. However, an original draft of today’s well known mascot had been provided by Larry Ewing based of this description [2].
The Linux was originally founded by Linus Torvalds. In 1991, he was a second year computer science student in Finland. He sought after an operating system that was similar to the UNIX system, but both UNIX and the hardware it ran on were excessively expensive. A UNIX version called Minix was available for free, but it did not reasonably meet his needs as it was simply an operating system for students, designed primarily as a teaching tool rather than an industry strength operating system. As a result, Torvalds studied Minix and proceeded to set out to write a new version. After six months of working to produce the new operating system, Torvalds made very little progress toward the utility of the system.