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1.Docker network docker's network function is still relatively weak. After docker is installed, three types of networks will be created automatically: bridge, host and none 1.1 bridging network Premise: Stop the docker compose warehouse in front docker-compose stop Install bridge network yum install bridge-utils -y brctl show docker ...

k8s environment construction Create three virtual machines to ensure that the private network uses the same network card on the same network segment Kubedm create cluster Preparation environment (machine execution) Install docker # ( sudo yum -y install docker-ce-20.10.7 docker-ce-cli-20.10.7 containerd.io-1.4.6 ) # Set docker to start ...

1. Environmental preparation Main librarySpare databaseoperating systemLinuxLinuxServer nameprimarynodestandbynodeIP address planning192.168.186.130192.168.186.131------------------------------------------------------Database version11.2.0.411.2.0.4db_namesfxtsfxtdb_unique_namesfxt_bfsfxt_bfinstance_namesfxtsfxt_bfservice_namesfxtsfxtDatabase ...

shell script 1, What is a shell Shell is a program written in C language. It is a bridge between users and linux kernel. It is not only a command language, but also an interpretative programming language. Use a chart to see what the shell does **Expand knowledge:** **kernel: Serve the software, receive user or software instructions, drive ...

1 ps/top [[monitor progress] ps -ef Display information: F S UID PID PPID C PRI NI ADDR SZ WCHAN TTY TIME CMD 0 S 500 3081 3080 0 80 0 - 1173 wait pts/0 00:00:00 bash 0 R 500 4463 3081 1 80 0 - 1116 - pts/0 00:00:00 ps Parameter meaning: UID: the user who started these processes.PID: process ID of the process.PPID: the process number ...

Address: https://www.ebpf.top/post/shrink_vbox_vmdk_size When using VirtualBox (VMDK mode) to manage virtual machines, we often encounter some compilation and installation scenarios (such as compiling Linux kernel), which will lead to a sharp expansion of disk space. However, after the compilation is completed, even if we delete the relevant f ...

Monitoring service Zabbix Common monitoring software cacti is good at drawing flow diagram and architecture diagramnagios is good at complex alarm configurationzabbixprometheus zabbix introduction zabbix is an enterprise class open source solution that provides distributed system monitoring and network monitoring based on WEB interface zab ...

Software installation is a necessary function of the system. Naturally, Linux also has it. Linux installation has two ways: rmp and source code. rpm: This is a bit like an exe file in windows. You can click Install. The file format is rmp, which is the format encapsulated by the source code, similar to exe file.Source code: software source cod ...

Background description System a is a dual node RAC. System a is short of disk space, so apply to Party A and add 1T disk to system a; System B is a single instance. System B has the remaining 500G disk and 800G disk DATA disk space. The archive storage location is in the DARA disk. The archive space size is set to 800G. Apply to Party A. s ...

1, Introduction to HAProxy HAProxy provides high availability, load balancing and proxy based on TCP and HTTP applications. It supports virtual hosts. It is a free, fast and reliable solution. HAProxy is especially suitable for web sites with heavy load, which usually need session persistence or seven layer processing. HAProxy runs on the ...