Pos420 Week2 Dqs

1.What is the relationship between Linux® and UNIX®? How has their relationship evolved over time? What similarities and differences atomic number 18 seen between them? Linux OS is a differential coefficient of the Unix OS. The Linux OS descend momentum through its progressive licensing which provide others to increase growing with the OS. With overwhelming popularity from the creation of Linux OS, Unix OS acquaint itself again. The functionality of both UNIX and Linux is rattling similar by both launchments able to multitask, both systems argon able to run on a variety of ironwargon platforms, and both are capable to use a play line. Linux is different through exploiter friendly OS and by GUI. 2.How can accuse licences be used to establish system security? What effect does this have on the UNIX® or Linux® direct system? File permissions is used by allowing man-to-man substance abusers and crowds rise to power to files based on a placed of security s ettings for distributively file and directory. Linux uses a system of user IDs and group IDs to cherish plan of attack to files, directories, and devices. Linux stores breeding about user accounts in the /etc/passwd file, and information about groups in the /etc/group file. apiece user is charge a incomparable numeric user ID, along with a text edition login name to severalize the user in the system.

Groups are also assigned unique numerical group IDs, and text group names. A group can contain whiz or more users to allowed divided access to system resources. Linux uses a complicated system of bits to i nstruct access permissions for files and dir! ectories. Each file contains ternion security aims of justification: the files owner, a default group that has access to the file, and a level for everyone else on the system. Each security level is defined by trio access bits: read, write, and execute. The combination of three bits is often referred to by the symbols rwx, for read, write, and execute. If permission is denied, its symbol is replaced with a bang up (such as r-- for read-only permission).If you want to stick to a full essay, set it on our website: BestEssayCheap.com

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