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wholesale jewelry rolls 1. With a solid foundation: If there is no solid foundation, it is difficult to master this course. If there is no basis, you can think about how to view the type of file, view the system running status, create users, etc. Farther.
2. There are many types of linux services. Each company is very different, so the common foundation must be well mastered, such as FTP, Bind, DHCP, Samba services. Construction, be familiar with the configuration in the service.
3. Master the script language: Shell language must be mastered in this industry. Some relatively simple system management shell scripts are the most common and used. The other is that the language is Python, which is relatively hot now, high program efficiency, simple and clear language, etc., which can realize automated operation and maintenance.
4, network service: website operation and maintenance, of course, web is the core. This one needs to master nginx, Apache
web service, must be proficient. The corresponding combination is LNMP and LAMP. It is not referred to as Guangguang's simple construction, but to be familiar with the configuration inside. In -depth understanding of the internal operating mechanism and principles, because the most critical of the website company is the web service, so Nginx and Apache must be familiar with, especially nginx. Be sure to be familiar. Some companies (many game companies) will also use Tomcat. This is also the best to learn. JVM optimization will be the best.
5, website cluster service: Most companies now have cluster environment, especially website companies, and high -performance high performance is the main theme. If you want to develop well , Redis.
6, database: The database is the core of all network services. You must learn to learn well. Here I recommend the preferred MySQL. Do n’t ask me why I do n’t learn Oracle Copy, engine, engine, backup, recovery, incremental recovery, must learn.
7, Firewall: Firewall, do n’t learn if you do n’t learn, the firewall is also a difficult point. It is difficult to say that it is difficult. The principle is the same, and the Filter table is used most, and it must be unqualified if you don't learn anyway.
hip hop jewelry wholesale distributors 1. Linux basic command and script: Shell is the basic requirement, it is best to understand Perl or Python. If you don't understand the script, how can you make the repeated labor simple?
2. System monitoring command: The purpose is to obtain the current operating status of the system. You must know how to analyze and investigate when you encounter faults. The system tuning and understanding the principle, knowing why the parameters are adjusted to a certain value.
3, network monitoring command: The reason is consistent with the second point, but focusing on the Internet. It is also necessary to understand the principles and tuning, and you cannot copy the experience of his predecessors without knowing it.
22k jewelry wholesale As a qualified operation and maintenance engineer,
It needs to be responsible for maintaining and ensuring the high availability of the entire service.
The continuously optimize the system architecture to improve deployment efficiency and optimize the utilization of resource utilization and improve the overall ROI.
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1 dollar wholesale jewelry First of all, this should be divided into operation and dimensionality. For example, the basic skills that primary operation and maintenance engineers and senior operation and maintenance engineers must master are different.
Lither operation and maintenance engineer, you need to master the following basic skills:
1, basic commands:
This foundation includes: user management command, file management command, authority management command, software package management command, vim vim Commands, network management commands, etc.
2, basic service:
The basic services commonly used by enterprises include DHCP, NTP, DNS, Nginx, Apache, MySQL, Redis, VSFTPD, NFS. The mastery of basic services is slightly more difficult than the command, but there are also many skills. For example, you can go to major video stations to get high -quality free video learning.
3, automation skills:
This automation includes script automation, and you need to be familiar with the shell script or Python script; including monitoring automation, you cannot rely on the traditional click page to view the process to determine whether the service is online. Zabbix, and other mainstream monitoring software; also include tool automation, you need to master automated software such as Ansible, Puppet, Jenkins, etc. to realize the batches of services and business automation.
4, safety:
, as an operation and maintenance engineer, first of all, it is necessary to always ensure the company's business system, and the server is safe and stable. Therefore, security is crucial. The mainstream iPtables, Firewall's firewall technology should be proficient in mastering. If necessary, common mining viruses, DDOS and other attacks must have some understanding.
Mid -high operation and maintenance engineer, you need to master the following basic skills:
1, high availability technology:
The business with a relatively large business group, generally use high availability technology to enhance user experience to improve user experience Essence So mainstream, HeartBeat, etc. must be applied proficient.
2, virtualization technology:
If you want to reach the water product of the high -level operation and maintenance engineer, then the mainstream virtualization technology must be mastered, and it must not only be installed and deployed. Optimization ability. At present, mainstream virtualization technology include Docker, K8S, KVM, OpenStack, VMware Esxi, Xen, etc.
3, cloud architecture:
In addition to being familiar with virtualization technology, it also needs integration capabilities. For example, how to apply this single technology to actual production, you need to master the practical private cloud and public cloud network architecture skills.
4, emergency ability:
In addition to technical skills, you must also have the ability to not be chaotic and not shocked. For emergencies, fast analysis, positioning, and responsibility to deal with people have systematic progress and scheduling capabilities.
The above is just a simple explanation, which may not be perfect in some aspects. Welcome to discuss and exchange.