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This article shows you how to get started with Linux quickly. The content is concise and easy to understand. It will definitely make your eyes shine. I hope you can learn something from the detailed introduction of this article.

Operation and maintenance is a position with comprehensive technical requirements. Operation and maintenance personnel should not only have a certain network foundation, but also master all aspects of Linux system knowledge, and have high requirements for learning and updating these technologies. This is a test of the learning ability of the operation and maintenance personnel. Since career development has such strict requirements for operation and maintenance personnel, operation and maintenance personnel should constantly supplement knowledge and expand their research scope for different problems.

For learning operation and maintenance knowledge, there are generally two processes: the initial entry stage and the advanced improvement stage. Therefore, learning is an advanced type, a process of continuous accumulation and summary.

Initial stage: everything is difficult at the beginning, every technology, solid foundation is the first level of entry. Migrant workers brother, according to their own experience listed a number of related technical points, for everyone's reference, I hope to help you get started quickly.

The operation and maintenance technology has reached the advanced stage, involving a wide range of knowledge and professional points, and the quality requirements are also very high. With the rapid development of the Internet, the business scale is getting larger and larger, and the architecture is becoming more and more complex, which is a big challenge for operation and maintenance personnel.

The following, migrant workers brother, according to their own study and work experience, to give you a list of this stage of the knowledge needed to learn, for your reference.

1. The most basic services, such as SSH service, NFS network file system, DHCP/DNS, data synchronization service, etc.

2, LAMP/LNMP architecture

Basic knowledge of each component

Installation and configuration of components

Common optimization and troubleshooting of components

3. Database

In Internet enterprises, the most commonly used database is MySQL, which must be mastered. In addition, you need to understand and master commonly used NOSQL databases, such as Redis, MongoDB, etc.

The following MySQL database as an example, to introduce what we need to master the technical points.

Multiple installation methods: source code, binary, Yum

Optimization: Hardware, profile optimization

Common management and operation: multi-instance, permission configuration, database, table data management

Backup and recovery: incremental, full backup and recovery, backup and recovery based on third-party tools

Common architecture: master-slave synchronization, read-write separation (based on official or third-party components)

Fault troubleshooting: start-up fault, data synchronization, misoperation, etc.

4. Common services

For operation and maintenance, there are many commonly used services, such as Java Web Services Tomcat, Jboss, Weblogic, etc. Tomcat is the most commonly used by migrant workers, and they are exposed to more middleware services, such as Kafaka and RabbitMQ, but they do not need to master the source code. They only need to master the daily configuration, optimization, debugging, and some architecture adjustments related to the business.

5. System monitoring and alarm

This is one of the key points in operation and maintenance work. Monitoring service software includes open source and commercial software. Most open source software can basically meet common requirements. For example, open source monitoring software commonly used in our work: Nagios and Cacti in the early stage, Zabbix gradually replaced the former two, and there will be some monitoring software specially developed for certain aspects, such as database monitoring software Lepus. However, the final choice must be based on demand.

6. Containers

Container technology is a hard requirement for enterprise recruitment in recent years. More and more enterprises are on the road of containerization development, so this aspect of technology is excellent, which is very powerful for improving the competitiveness in the job search process.

7 and others.

For operation and maintenance work, one of the questions that must be considered after a certain stage of practice is: How to automate repetitive work? This requires mastering some basic theories and tools of automation. Now it is the era of cloud for all people, so it is necessary to be familiar with and master all kinds of operations of third-party cloud products.

So that's how to get started with Linux. Have you learned anything? If you want to learn more skills or enrich your knowledge reserves, please pay attention to the industry information channel.

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