Lnmp搭建（三台主机）

Lnmp搭建（三台主机）

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环境说明：

系统	IP	需要安装的服务
centos8	192.168.174.168	nginx-1.20.2
centos8	192.168.174.171	mysql-5.7
centos8	192.168.174.173	php-8.1.11

nginx安装与配置

nginx安装

//首先关闭防火墙和selinux
[root@nginx ~]# setenforce 0
[root@nginx ~]# sed -ri 's/^(SELINUX=).*/\1disabled/g' /etc/selinux/config
[root@nginx ~]# systemctl disable  --now firewalld.service 
Removed /etc/systemd/system/multi-user.target.wants/firewalld.service.
Removed /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.

//创建用户
[root@nginx ~]# useradd -rMs /sbin/nologin nginx

//安装所需要的依赖包
[root@nginx ~]# dnf -y install pcre-devel openssl openssl-devel gd-devel gcc gcc-c++ make wget vim

//下载nginx源码包，并解压
	
[root@nginx ~]# wget http://nginx.org/download/nginx-1.20.2.tar.gz
[root@nginx ~]# tar -xf nginx-1.20.2.tar.gz 
[root@nginx ~]# cd nginx-1.20.2/
[root@nginx nginx-1.20.2]#

//准备安装
##在配置前我们其实可以隐藏一下nginx版本号，以防版本泄露
[root@nginx nginx-1.20.2]# vim src/core/nginx.h 
#define NGINX_VERSION      "111"    //修改这个参数隐藏nginx版本号

//开始配置
[root@nginx nginx-1.20.2]# ./configure \
> --prefix=/usr/local/nginx \              //指定安装路径
> --user=nginx \                           //指定用户和组
> --group=nginx \                          
> --with-debug \                           //开启debug功能
> --with-http_ssl_module \                 //开启各类模块
> --with-http_realip_module \
> --with-http_image_filter_module \
> --with-http_gunzip_module \
> --with-http_gzip_static_module \
> --with-http_stub_status_module

//开启编译安装
[root@nginx nginx-1.20.2]# make -j $(grep 'processor' /proc/cpuinfo | wc -l) && make install
.........

//安装成功
[root@nginx nginx-1.20.2]# cd /usr/local/nginx/
[root@nginx nginx]# ls
conf  html  logs  sbin

nginx配置

//配置环境变量
[root@nginx nginx]# echo "export PATH=$PATH:/usr/local/nginx/sbin" > /etc/profile.d/nginx.sh
[root@nginx nginx]# source /etc/profile.d/nginx.sh
	
//启动服务
[root@nginx nginx]# nginx
[root@nginx nginx]# ss -anlt
State      Recv-Q     Send-Q          Local Address:Port           Peer Address:Port     Process     
LISTEN     0          128                   0.0.0.0:22                  0.0.0.0:*                    
LISTEN     0          128                   0.0.0.0:80                  0.0.0.0:*                    
LISTEN     0          128                      [::]:22                     [::]:*                    

//关闭服务，编写service文件，并设置服务开机自启
[root@nginx nginx]# nginx -s stop
[root@nginx nginx]# ss -anlt
State      Recv-Q     Send-Q          Local Address:Port           Peer Address:Port     Process     
LISTEN     0          128                   0.0.0.0:22                  0.0.0.0:*                    
LISTEN     0          128                      [::]:22                     [::]:*                    

[root@nginx nginx]# cat > /usr/lib/systemd/system/nginx.service << EOF
> [Unit]
> Description=nginx server daemon
> After=network.target 
>  
> [Service]
>