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  http://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm

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