Programmer Think

Article directory 1. Basic concepts of full synchronous replication (Group replication) 1.1 group replication model: 1.2 group replication principle: 2. Realize group replication server1: (initiating node) Configure on server2 and server3: Test: 1. Basic concepts of full synchronous replicat ...

Note: I've built this several times recently. Take notes this time so that I don't forget. It won't be so troublesome next time 1, FastDFS introduction FastDFS open source address: https://github.com/happyfish100 Set up FastDFS cluster: https://blog.csdn.net/u012453843/article/details/68957209 Re ...

1, The UI access interface of k8s - dashboard In dashboard, although we can create, delete and modify resources, we usually regard it as the software of healthy k8s cluster. As the Web user interface of Kubernetes, users can deploy containerized applications in Kubernetes cluster through Dashboard, handle and manage the application problems, a ...

Learning notes 1. Command for the location of the PHP configuration file /usr/local/php/bin/php -i|grep -i "loaded configuration file"      ​ 2. Disable functions in PHP 2.1. php has many built-in functions, so it is safe to disable some risky functions vim /etc/php.ini         #This is the lo ...

Key paired to local and server Prerequisite: Server has git tools and nginx server installed, git tools locally installed, hexo configured Generate Local Key The local terminal runs the command ssh-keygen-t RSA and returns continuously, generating a public key to store in C...In the / user/.ssh fold ...

Principle and characteristics of LVS/NAT: https://blog.csdn.net/qq_35887546/article/details/104425264 1. Experiment preparation This experiment needs three virtual machines and physical machines: Virtual machine name Effect IP server1 DS 172.25.63.1 (internal network), 172.25.254.100 (external net ...

1. Text Processing Tools1. grep tools2. cut tool3. sort tool4. uniq Tools5. tee tools6. diff tools7. Pase Tool2. Characteristics of bash1. Auto-Completion of Commands and Files2. Common wildcards3. Quotes in bash 1. Text Processing Tools 1. grep tools grep is a==row==filter tool; used to filter rows based on keywords Grammar and Options Gr ...

1, Manage file system 1. Creating an EXT4 file system The mkfs (Make Filesystem) command is used to create a file system (format). The basic syntax format of the mkfs command is as follows: 1) mkfs application example Format the / dev/sdb1 partition as an EXT4 file system. <! -- self planning zone -- > [root@centos01 ~]# fdisk / ...

Chapter 3 enterprise development cases 3.1 official case of monitoring port data Case requirements: first, Flume monitors port 44444 of the machine, then sends a message to port 44444 of the machine through telnet tool, and finally Flume displays the monitored data on the console in real time. Dema ...

brief introduction PV is the number of clicks, which is usually an important indicator to measure a network news channel or website or even a network news. To some extent, PV has become the most important measure for investors to measure the performance of commercial websites. PV is a visitor in 24 hours to see several pages of the site. Cas ...