Linux system introduction and server hardware composition Day-1

I. Linux operations

1. Assemble network, System, database, development and other integrated talents.

　

two. Introduction to Linux Systems

1. A free and open source Unix-like operating system. There are many different Linux, but all are using the Linux kernel

three. Linux Branch

Redhat,ubuntu,centos,debian,fedora (Red Hat Desktop edition), Kall Linux (tested)

Redhat is similar to CentOS, but CentOS is free

four. Linux features

1. Application on the server side

2. High degree of modularity, open source, security and reliability, extensive hardware support, strong portability, integration of many development tools, network support file system support (almost all are compatible).

Five. Hardware composition of Linux servers

1. Central processing Unit (brain), memory, chipset, I/O bus (nerve), I/O device (hand eye ear), power supply, chassis, and related software.

2.CPU: Manufacturer-->AMD and Intel, server multiple CPU memory: PC support to 16G and 32G, server support to 64G, 128G or higher

3. Dimensions: Tower type, rack type (e.g. 2U architecture Note: The so-called 2U rack-mount structure, refers to the shape to meet the EIA specifications, the thickness of 8.89cm products. ）

six. Linux Installation Deployment

1.U disk, optical drive, network installation.

2.uname-r #看内核版本 unam-a# system version, SMP symmetric multi-processor

Linux system introduction and server hardware composition Day-1