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An Analysis of CentOS 64Have you ever looked for an operating system while on a budget that youcan trust to be stable secure low-maintenance and reliable If soCentOS is a great choice because it is a rebuild of Red Hat EnterpriseLinux an enterprise class operating system In theory CentOS shouldmatch Red Hat right down to any bugs not yet addressed In this essay Iwill cover the major design principles overview major elements andcomponents while simultaneously covering different methods used andpoint out the advantages and disadvantages of CentOS Design PrinciplesCentOS is a rebuild of Red Hat Linuxs source a enterprise Linuxdistribution The CentOS team removes Red Hats branding and artworkthen compiles their source and distributes the OS for free This meansthat an Enterprise-class OS is available to anyone This is not an OSthat has the most up to date packages possible but instead aims to bean enterprise class operating systems Its goals are to be stablesecure low-maintenance and reliable with each version supported for upto 10 years by means of security updates FrontPage 2013CentOS is a multi-user general purpose server and desktop OS and assuch it is a time-sharing centric OS This does not mean it lacks batchcapabilities Once the respective packages are installed batch servicesare maintained by two services at and batch The at command is used toschedule a one-time task at a specific time and the batch command isused to schedule a one-time task to be executed when the systems loadaverage drops below 08 At and Batch nd CentOS does not support areal time scheduler out of the box but the operating system communityhas created a patch that many users have deployedProcess Management CentOS 64 uses the linux kernel 2632-358 Because this kernel isopen source much is known about it For example each process isrepresented by a C structure known as a process control block or PCBEach processess PCB contains the information such as the processstate scheduling information the processs parent the processeschildren any
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