What skills must Linux operation and maintenance engineers master?

Skills that Linux operation and maintenance engineers must master: 1. Linux basic knowledge content, command usage, and core knowledge points such as users and permissions; 2. Linux processes, resources, tasks, files, software packages, Disk and other management methods; 3. Security architecture, security threat model, encryption, decryption and other principles, common attacks and prevention methods, etc.

The skills that excellent operation and maintenance personnel must possess:

1. Introduction to the basics of Linux system - the basics of Linux Knowledge content, command usage, and core knowledge points such as users and permissions

2. Linux system management and advancement-Linux management methods from processes, resources, tasks, files, software packages, disks, etc.

3. Linux enterprise-level common services such as DNS, FTP, HTTP, mail

4. Linux enterprise-level security principles and prevention techniques, as well as network and security-Linux security architecture, security threat model, and encryption, Decryption and other principles, common attacks and prevention methods

5. Introduction and advancement of Shell programming-Basic usage and advancement of Shel scripts, from basic to proficient, you need to learn some common enterprise-level script usage

6. Introduction to MySQL application principles and management - Mysql installation, management, authorization, addition, deletion, modification and query

7. http service proxy cache acceleration-http advanced protocol application, cache, web service nginx

8. Enterprise-level load cluster, enterprise-level 4-layer load balancing LVS, and 7-layer load balancing nginx and haproxy applications

9. Enterprise-level high-availability cluster high-availability cluster principle to achieve high availability with keepalived as the core Cluster, as well as master-slave high availability, dual master

10, operation and maintenance monitoring zabbix enterprise-level monitoring system and the function and architecture of zabbix popular open source monitoring system

11, cloud computing operation and maintenance automation ansible , puppet and other operation and maintenance automation solutions

12. WEB service system architecture-WEB service system architecture, JSP system, tomcat, CDN, caching principle, stress testing, evaluation

13. Large-scale Internet Cluster architecture and practical solutions LB cluster: nginx, Haproxy, LVS HA cluster, dynamic and static separation

14, MySQL DBA practical skills and optimization database parameter optimization, sub-database and sub-table, backup plan, data recovery strategy, master-slave Replication, read-write separation, connection pool and sharding technology, MHA, etc.

15, enterprise-level cloud computing 0penstack Keystone, Glance, Nova core components, network modules, block storage services, etc.

16. Enterprise-level big data Hadoop operation and maintenance actual combat column database HBase basic principles, installation configuration and application, Zookeeper cluster construction, hadoop implementation of Namenode high availability

17, enterprise-level virtualization KVM actual combat-KVM environment: KVM Installation, configuration and application

18. NoSQL enterprise-level applications-Nosql applications, such as redis, MongoDB replication, cluster and other advanced applications

19. Enterprise-level log collection system ELK practical massive data log Collection system Elasticsearch L ogstash kibana application

20, sustainable integration-Jenkins github enterprise application

21, virtualized container Docker-Linux lightweight virtualized Docker, the principle and installation of Docker , configuration and application

22. Enterprise-level K8S actual component functions, installation, configuration, enterprise-level application scenarios and common fault analysis

23. Linux system tuning actual combat from memory, CPU, process Comprehensive explanation of Linux system tuning such as scheduling, disk IO, network parameters, etc.

24. Python programming basics including J-python installation, logical judgment, module usage, etc.

25. Expression of personal comprehensive ability improvement Ability, teamwork ability, execution ability, competency, etc.

The boss said that each of the above 25 skills is worth about 2K, and your salary depends on how much you know in this industry. If you want to make money, you have to be valuable first.

In addition, the operation and maintenance industry is also very different from other industries. What it requires is not talent, but the most important thing is rich experience. What is important in the operation and maintenance industry is the word "stability". A good operation and maintenance personnel should be a good housekeeper, ensuring that everything at home is normal and "doing nothing". No situation is the best situation.

Recommended tutorial: "Linux Operation and Maintenance"

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