Shulou(Shulou.com)06/01 Report--

In this issue, the editor will bring you what the basic knowledge of linux operation and maintenance needs to master. The article is rich in content and analyzes and describes for you from a professional point of view. I hope you can get something after reading this article.

Stepping into the profession of linux operation and maintenance engineer, there are actually a lot of tool skills to be mastered. Let me introduce them to you one by one.

1. Shell script and another scripting language, shell is a must for operators. If you don't understand this, you can't even get started. At least you have to write some system management scripts. The simplest thing is to write a script that monitors CPU and memory ratio. This is the most basic and meaningful, while the other scripting language is optional, which is generally 3P, that is, python, perl and php,php, and you don't need to consider it unless you want to do development. I personally suggest that learning python will be better, it is difficult to achieve automated operation and maintenance, perl is very powerful text processing, anyway, just learn one of the two.

2. Sed and awk tools, must be mastered, while mastering these two tools, but also master regular expressions, this is painful, regular is the most difficult to learn expressions, but the combination of sed and awk will be very powerful, in dealing with text content and filtering WEB content is very useful, but in learning shell at the same time will often be used together

3, text processing commands, sort, tr, cut, paste, uniq, tee, etc., must be learned, but also combined with shell scripting language to learn.

4. Mysql is the first choice for database, because linux is absolutely used by mysql, and you must learn to add, delete, modify and check, especially to learn to check it well. Other aspects may not be needed, because operation and maintenance personnel still use it most.

5, firewall, is also a must, firewall is also a difficulty, the most important to understand the rules, if you have learned CCNA friends may be easier to learn, because iptables also has NAT table, the principle is the same, and FILTER table is the most used.

6, monitoring tools, very important, personal advice, it is best to learn these three, cacti,nagios,zibbix, enterprises should use nagios and zibbix at most, but nagios will be a little difficult

Because it will involve scripting automatic monitoring, that place is very difficult.

7, clustering and hot backup, this is very important, certainly to understand, but to the company will not let you do, because the novice basically do not let you touch, there are many cluster tools, the best to learn is LVS, this is a must, it is best to learn nginx clusters, reverse proxy, and hot backup, this is more tools can be realized, mysql hot backup to learn, that is, master-slave replication, this is not easy, to learn the whole process is not easy.

8, data backup, is also necessary to learn, there are many tools, but at least to understand the principles of RAID, especially the most commonly used enterprises 1: 0 or 0: 1, to do their own experiments to get out, there are many backup tools, such as tar, dump, rsync, etc., it is best to know more.

The above is the basic knowledge that the editor shares with you about linux operation and maintenance. If you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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