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Deployment architecture: I. installing docker Only docker18.06 is supported at this time 1.1. Add source: # yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo 1.2. View package: # yum list docker-ce.x86_64 --showduplicates | sort -r 1.3. Install docker # yum -y install docker-ce-18.06.0.ce-3.el7 Th ...

Environmental description [root@localhost Python-3.6.6]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 7.4 (Maipo) [root@localhost Python-3.6.6]# uname -a Linux localhost.localdomain 3.10.0-693.el7.x86_64 #1 SMP Thu Jul 6 19:56:57 EDT 2017 x86_64 x86_64 x86_64 GNU/Linux [root@localhost Python-3.6.6]# getenforce Disabled [ ...

I. details of installation version Server: MariaDB Server version: 5.5.60-MariaDB MariaDB Server [root@ln-125 ~]# cat /etc/redhat-release CentOS Linux release 7.6.1810 (Core) [root@ln-125 ~]# nginx -v nginx version: nginx/1.14.2 [root@ln-125 ~]# php-fpm -v PHP 5.4.16 (fpm-fcgi) (built: Oct 30 2018 19:32:20) Copyright (c) 1997-2013 The PHP Group ...

One docker installation CentOS system 1.1 docker automatic installation script 1 root@docker:~# wget -qO- https://get.docker.com/ | sh 2 Or - 3 root@docker:~# curl -sSL https://get.docker.com/ | sh   Note: if the following error occurs, you can use yum to resolve the dependency—— Delta RPMs disabled because /usr/bin/yum prov ...

The function of PostgreSQL's fdw implementation is the cross database operation between each PostgreSQL database and the remote database. The function is the same as oracle's dblink. The environment in this article is shown below: 1.1. Target installation software package [root@hdp06 ~]# yum -y install postgresql10-contrib.x86_64 1.2 creating ...

This post is a case post. For an overview of the principles and related overviews of LVS Load Balancing Clusters, please refer to the post: LVS Load Balancing Cluster for Centos 7 1. Introduction to Cases 1. Case Environment 2. Experimental results Using NAT-mode clustering technology, the LVS load dispatcher is a gateway server where all ...

I. working principle of DR mode          As shown in the figure, the working principle of LVS-DR has been explained in the figure. Let's list the characteristics of LVS-DR mode: 1. RIP can use private address or public network address. If public network address is used, RIP can be accessed directly. 2. All requested packets must pass through ...

Preface mac record and port scan script Develop system monitoring script I. sharing of script programming steps 1.1 script programming steps 1.2 demand analysis According to the requirements of system management, the functions, levels, commands and statements of the script are analyzed 1.3 command test Test the commands to be used one by ...

What is VeryNginx VeryNginx is developed based on Lua ﹣ Nginx ﹣ module (openretry), which implements advanced firewall, access statistics and other functions. The integration runs in Nginx, extends the function of Nginx itself, and provides a friendly Web interface. How to install VeryNginx Nginx compilation environment yum -y install gcc gcc ...

1. purpose lvs is a four-tier load balancing. keepalived provides lvs with highly available services and checks the health status of the backend nginx. Nginx is mainly used for seven tier load balancing 2. topological graph Server IP address description Director master 192.168.3.105 LVS kept alive Director standby node 192.168.3.104 LVS ke ...