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Create mysql users and user groups groupadd mysql useradd -g mysql mysql passwd mysql Uninstalling mariadb from the system #query rpm -qa|grep mariadb Return mariadb-libs-5.5.60-1.el7_.x86_ #uninstall rpm -e mariadb-libs-5.5.60-1.el7_5.x86_64 Return error: Failed dependencies: libmysqlclient.so.18()(64bit) is needed by (installed) post ...

Introduction to DNS DNS (Domain Name System) Domain Name System: It is a system that uses client/server mechanism to translate computer name to IP address.As an important network service, DNS is not only the basis of the work of the international Internet, but also widely used in the internal network of enterprises. Role of DNS Server Forward R ...

Or through Https://download.csdn.net/download/xxxzhaobb/11151222 download. 1. Basic information of software and hardware OS Hostname IP Master / slave Remarks Redhat 7.4 Mysql1 192.168.54.230 from Management node ...

Compile and install Python 3 First, install some dependency packages required for compilation through yum: [root@localhost ~]# yum install -y wget gcc make libffi-devel zlib* Enter the download address on Python official website: https://www.python.org/downloads/source/ I chose the latest version of 3.8.0: Click the corresponding version to ...

Official website: https://redis.io Download: https://redis.io/download 1. Installation dependency ➜ yum install -y gcc gcc-c++ kernel-devel 2. Download the source package # It is recommended to store the source code of each software in this directory ➜ cd /usr/local/src # Download the specified version ➜ wget http://download.redis.io/rele ...

I. installation dependency package yum install -y gcc gcc-c++ pcre pcre-devel zlib zlib-devel openssl openssl-devel Dependency package description: 1. Compilation depends on GCC environment, so it needs: gcc-c + +; 2. PCRE(Perl Compatible Regular Expressions) is a perl library, including perl compatible regular expr ...

**Four virtual machines Client lvs server rs1 server 172.22.144.188 VIP-172.22.144.59 DIP-192.168.49.2 RIP-192.168.49.3 rs2 server RIP-192.168.49.4 **Note that LVS server needs to play the role of scheduling and routing. Two IP addresses need to be enabled Whether lvs server, rs1 server and rs2 server are in time synchronization ...

I. check iptables service status First check the status of iptables service [root@woxplife ~]# service iptables status iptables: Firewall is not running. The iptables service is installed, but the service is not started. You can install it directly if it is not installed. yum install -y iptables ...

1. Download mysql installation package to / usr/local/soft [root@VM_0_9_centos ~]# cd /usr/local/soft[root@VM_0_9_centos soft]# wget http://dev.mysql.com/get/Downloads/MySQL-5.6/mysql-5.6.33-linux-glibc2.5-x86_64.tar.gz 2. Installation dependent environment [root@VM_0_9_centos soft]# yum -y install perl perl-devel autoconf libaio 3. ...

centos installation Version Description: centos7, mysql5.7, not centos7, some commands may not be compatible Install MySQL server # Download and install mysql yum. wget -i -c http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm yum -y install mysql57-community-release-el7-10.noarch.rpm # Install MySQL server yum -y install m ...