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 first derivative of the Unix OS. The Linux OS descend momentum through its progressive licensing which deliver others to increase growing with the OS. With overwhelming popularity from the creation of Linux OS, Unix OS reintroduce itself again. The functionality of both UNIX and Linux is rattling similar by both exhibitments fitted 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 item-by-item exploiters and assemblages rise to power to files based on a restore of security set tings for distributively file and directory. Linux uses a system of drug user IDs and group IDs to cherish entrance money 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. from each one user is charge a unequaled numeric user ID, along with a text edition login name to detect 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 t o plant access permissions for files and di! rectories. Each file contains ternion security take aims of security measure: 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 iii 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 trend (such as r-- for read-only permission).If you want to stick to a full essay, secern it on our website: BestEssayCheap.com

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