Linux Networking Capabilities :: Essays Papers

Linux Net solveing CapabilitiesLinux is a Unix clone written from scratch by Linus Torvalds with assistance from a loosely-knit team of hackers across the Net. It aims towards POSIX compliance. It has all the features expected in a modern-day fully-fledged Unix, including true multitasking, virtual keeping, sh atomic number 18d libraries, demand loading, shared copy-on- preserve executables, proper memory management and TCP/IP networking. It runs mainly on 386/486/586-based PCs, using the computer hardware facilities of the 386- mathematical operationor family to implement these features. Ports to other architectures are underway.Linux is freely available, and no one is call for to register their copies with any central authority, so it is difficult to know how many another(prenominal) people use Linux. Several businesses are now surviving alone on selling and supporting Linux, and very few Linux drug users use those businesses, comparatively speaking, and the Linux newsgroups are some of the most heavily read on the internet, so the number is likely in the hundreds of thousands, but hard numbers are hard to come by. Linux FeaturesMultitasking. Several programs running at once.Multiuser. Several users on the same machine at once. Two-user licenses are not possible.Multiplatform. Runs on many different CPUs, not just Intel.Multiprocessor. SMP support is available on the Intel and SPARC platforms (with work currently in progress on other platforms), and Linux is used in several loosely-coupled MP applications, including Beowulf systems and the Fujitsu AP1000+ SPARC-based supercomputer.Runs in protected mode on the 386. repositing protection between processes. So that one program domiciliatet bring the unharmed system down.Demand loads executables. Linux only reads from disk those parts of a program that are actually used.Shared copy-on-write pages among executables. This means that multiple process can use the same memory to run in. When one tries to write to that memory, that page (4KB piece of memory) is copied somewhere else. Copy-on-write has two benefits increasing speed and decrease memory use.Virtual memory using paging (not swapping whole processes) to disk. To a separate partition or a file in the filesystem, or both, with the possibility of adding more swapping areas during runtime. A total of 16 of these 128 MB swapping areas can be used at once, for a theoretical total of 2 GB of useable swap space. It is simple to increase this if necessary, by ever-changing a few lines of source code.Unified memory pool for user programs and disk cache.