01.linux安装nginx

1.下载安装包
手动下载.tar.gz安装包，地址：nginx: download
下载完毕上传到服务器上 /root
2.解压

tar -zxvf nginx-1.21.6.tar.gz
cd nginx-1.21.6

3.安装依赖

yum install -y gcc
yum install -y pcre pcre-devel
yum install -y zlib zlib-devel

编译安装

./configure --prefix=/usr/local/nginx make make install
nake
make install

4.启动Nginx

进入安装好的目录 /usr/local/nginx/sbin

./nginx启动 
./nginx -s stop 快速停止 
./nginx -s quit 优雅关闭，在退出前完成已经接受的连接请求 
./nginx -s reload 重新加载配置

5.关于防火墙
关闭防火墙
systemctl stop firewalld.service

禁止防火墙开机启动
systemctl disable firewalld.service

放行端口
firewall-cmd --zone=public --add-port=80/tcp --permanent

重启防火墙
firewall-cmd --reload

安装成系统服务
创建服务脚本

 vi /usr/lib/systemd/system/nginx.service

服务脚本内容

[Unit]
Description=nginx - web server
After=network.target remote-fs.target nss-lookup.target
[Service]
Type=forking
PIDFile=/usr/local/nginx/logs/nginx.pid
ExecStartPre=/usr/local/nginx/sbin/nginx -t -c /usr/local/nginx/conf/nginx.conf
ExecStart=/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf
ExecReload=/usr/local/nginx/sbin/nginx -s reload
ExecStop=/usr/local/nginx/sbin/nginx -s stop
ExecQuit=/usr/local/nginx/sbin/nginx -s quit
PrivateTmp=true
[Install]
WantedBy=multi-user.target

重新加载系统服务

systemctl daemon-reload

启动服务

systemctl start nginx.service 

开机启动

 systemctl enable nginx.service