What is the application of linux in real life?

Linux is an operating system: it is just an operating system like Windows XP, Windows 2003 and Windows 2008! Let's talk about it later, regardless of who invented it.

What Linux can do: It can be a server, and various enterprise applications and services can be installed on the server. For example: Web service (apache), database (MySQL), blog system (wordpress) and so on. ...

Where is the Linux system used? For example, the server of a website, they must use Linux. Another example is the database of a website, almost all of which are based on Linux. Another example is government departments, schools, Dongguan nightclubs and an intermediary company. In short, they all use Linux. Because part of their business needs to be processed, stored and managed on the network. Then Linux is a good server operating system.

Business operation and maintenance engineer recruited by Tencent:

1, proficient in linux operating system, with a deep understanding of system performance related issues;

2. Proficient in shell programming, skilled in using awk, sed, grep, strace, tcudump, gdb and other common commands.

3. Familiar with the B/S development structure of the website, familiar with the use and optimal configuration of commonly used B/S structure software apache, tomcat, squid, mysql and lvs under linux;

4. Familiar with cluster high availability scheme and have some experience in bandwidth cost and speed optimization;

5. Familiar with TCP/IP protocol, able to locate common network anomalies under linux network.

Operation and maintenance engineer recruited by Alibaba:

1, familiar with the daily maintenance and optimization of LINUX operating system;

2. Familiar with the deployment and optimization of Web application servers such as apache and Jboss;

3, proficient in a shell/perl/python;

Linux system mainly occupies the server market. Places where linux systems are usually used:

1, Linux control

Linux is more free. I can write my own script code to use according to my own needs. When executing the program, I just need to set my own shortcut key to open it. Under Linux, almost all software is open source, and everyone can modify it for their own use, even Linux itself.

2, personal entertainment or office

Linux distribution ubuntu, because this operating system is friendly to many individual users, does not need to do too many settings, and does not need to write any complicated code, personal entertainment is enough.

3, government enterprises and other departments, for confidentiality, internal use of the operating system.

With the exposure of prism door, governments and enterprises all over the world pay more and more attention to network security, and the security problems of windows also show more and more obvious shortcomings. Linux system with high security and stability has become the first choice of government office operating system in various countries, and it has been purchased in large quantities.