Linux-CentOS7下安装LNMP环境笔记

CentOS版本号： 7.6

1. 设置yum源 rpm -Uvh https://dl.Fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm rpm -Uvh

PHP源官方地址:　 https://webtatic.com/

mysql源官方地址: https://dev.mysql.com/downloads/repo/yum/

2.安装nginx1.1 php7.1 mysql5.7

安装之前先
清除yum缓存： yum clean all
生成yum缓存 ： yum makecache

yum -y install nginx yum -y install mysql-community-server yum -y install php71w-devel php71w php71w-cli php71w-common php71w-gd php71w-ldap php71w-mbstring php71w-mcrypt php71w-pdo php71w-mysqlnd php71w-fpm php71w-opcache php71w-pecl-redis php71w-bcmath 3.启动软件 systemctl start nginx systemctl start mysql | systemctl start mysqld systemctl start php-fpm

具体的nginx，php-fpm的配置这里省略，下面只重点说一下mysql的配置

mysql5.7 初始密码获取

启动mysql之后，通过命令 grep \'temporary password\' /var/log/mysqld.log 可以拿到root用户的初始密码

修改初始密码

root用户首次登录mysql是需要修改初始密码才能进行后续的操作的

初始密码必须包括数字、大小写字母且长度不能小于8位

set password = password(\'ryUl1_33au_n0krQ\')

创建用户且授权

grant all privileges on db_sb.* to "dbsb"@"%" identified by "ryUl1_33au_n0krQ"

上面命令会自动创建dbsb用户且授权db_sb库的所有表的权限

4.设置开机自动启 systemctl enable mysqld systemctl enable nginx systemctl enable php-fpm

Created symlink from /etc/systemd/system/multi-user.target.wants/nginx.service to /usr/lib/systemd/system/nginx.service.

查看软件安装相关目录或者文件：　　 rpm nginx -ql

以上都是在关闭了系统的防火墙和selinux下操作的
参考：
https://www.linuxidc.com/Linux/2018-01/150669.htm

https://webtatic.com/packages/php71/

升级PHP版本

查看安装的PHP yum list installed | grep php

匹配卸载7.1版本：
yum remove php71w*
yum remove mod_php71w

安装72版本

yum -y install mod_php72w php72w-devel php72w-cli php72w-common php72w-gd php72w-ldap php72w-mbstring php72w-mcrypt php72w-pdo php72w-mysqlnd php72w-fpm php72w-opcache php72w-pecl-redis php72w-bcmath

没有可用软件包 php72w-mcrypt。72版本移除了mcrypt