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- Don't know how to use Linux firewall software IPtables! What kind of operation and maintenance person are you?
- Connection tracking is the basis of many web applications. For example, Kubernetes Service, ServiceMesh sidecar, software four-layer load balancer LVS/IPVS, Docker network, OVS, iptables host firewall, etc., all rely on the connection tracking function.
- Linux Operation and Maintenance 1320 2023-08-01 17:36:23
- The most commonly used Linux commands: can solve more than 95% of problems!
- In Linux systems, every user belongs to at least one user group. Each user group in the Linux operating system has a unique identifier GID. When using the command to create a user group, if the GID of the user group is not specified, the system will automatically assign it a GID.
- Linux Operation and Maintenance 1464 2023-08-01 17:34:32
- 34 Linux Shell scripts commonly used for operation and maintenance will definitely help you!
- As a Linux engineer, being able to write good scripts can not only improve work efficiency, but also give you more time to do your own things. When I was surfing the Internet recently, I also paid attention to collecting some scripts written by big guys and summarized them.
- Linux Operation and Maintenance 891 2023-08-01 17:27:03
- 6 ways to configure Linux environment variables, which one is smoother?
- When customizing software installation, it is often necessary to configure environment variables. The following lists various methods of configuring environment variables.
- Linux Operation and Maintenance 1016 2023-08-01 17:25:40
- Docker is no longer open source!
- Docker sent an email to all Docker Hub users who have created an "organization", reminding them that they must upgrade to the paid team plan for $420 per year, otherwise, their account's Docker image will be deleted.
- Docker 1527 2023-08-01 17:20:58
- Linux disk partitioning and mounting
- For Linux, wulun has several partitions, which directory is assigned to them. In the final analysis, it has only one root directory, an independent and unique file structure. Each partition in Linux is used to form part of the entire file system.
- Linux Operation and Maintenance 1437 2023-08-01 17:19:07
- Recommended to collect! ! ! Essential security settings for Linux servers~
- Below I will tell you some simple methods to improve the security factor of the server. My cloud server is configured in this way. Although it is a bit troublesome, I feel more at ease.
- Linux Operation and Maintenance 1329 2023-08-01 17:13:47
- I thought I was familiar with Linux, but I never expected that it would turn upside down in the production environment...
- Having been engaged in operation and maintenance for many years, I have encountered various problems, such as data loss, website malfunction, accidental deletion of database files, hacker attacks and other problems. I have also met many friends who thought they were familiar with the Linux system. When they saw problems, they never panicked and were full of confidence, but their production environment turned upside down.
- Linux Operation and Maintenance 1507 2023-08-01 17:09:50
- Implement port mapping on Linux or Windows
- Usually the server has many network cards, so it may be connected to different networks. In an isolated network, some services may need to communicate. At this time, the server can be configured to assume the function of forwarding data packets.
- Linux Operation and Maintenance 816 2023-08-01 17:03:54
- After QQ was refactored with Electron, it finally realized the unification of the three-terminal architecture of Linux, macOS, and Windows!
- After 24 years of changes, the national application QQ has become a memory of the post-80s/90s generation and the main battlefield of the post-00s generation. Now, because of the release of a latest version of QQ, it has attracted the attention of technical people of all ages.
- Linux Operation and Maintenance 1449 2023-08-01 16:56:33
- Essential security settings for Linux servers, recommended collection! ! !
- Below I will tell you some simple methods to improve the security factor of the server. My cloud server is configured in this way. Although it is a bit troublesome, I feel more at ease.
- Linux Operation and Maintenance 976 2023-08-01 16:51:54
- Shell is an efficient command for analyzing log files, super easy to use!
- My own small website runs on Alibaba Cloud's ECS. I occasionally analyze my website server logs to see the number of visits to the website. See if there are any hackers causing damage! So I collected and sorted out some server log analysis commands. You can try them!
- Linux Operation and Maintenance 1084 2023-08-01 16:47:46
- There are a lot of logs in the Linux server. How to read the logs correctly and quickly locate errors?
- There are very few logs obtained with grep, we need to check nearby logs. This is what I did, first: cat -n test.log | grep "keyword" to get the line number of the key log.
- Linux Operation and Maintenance 1210 2023-08-01 16:45:25
- Summary of the 600 most powerful Linux commands
- Today, I bring you a very comprehensive article summarizing Linux commands. It is also a very frequently used operation command in our daily work. There are a lot of commands. I suggest you to save it first and then read it.
- Linux Operation and Maintenance 547 2023-08-01 16:39:31
- This article is enough for monitoring systems! Common monitoring tutorials such as Zabbix and Prometheus
- Monitoring is commonly known as the "third eye". It is a system that we deal with almost every day. As the saying goes: no monitoring, no operation and maintenance, the status of monitoring is self-evident, especially in the era of operation and maintenance automation, traditional operation and maintenance, DevOps, Or SRE, monitoring is a necessary skill.
- Linux Operation and Maintenance 1023 2023-08-01 16:31:55
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