第六节：Centos下安装Nginx

1、安装依赖包(这些如果安装过可以跳过)

yum install gcc- 
yum install gcc-c++ 
yum install pcre 
yum install pcre-devel 
yum install zlib 
yum install zlib-devel 
yum install openssl 
yum install openssl-devel

2、下载nginx安装

wget http://nginx.org/download/nginx-1.18.0.tar.gz 
tar -zxvf nginx-1.18.0.tar.gz 
cd nginx-1.18.0 
./configure --prefix=/usr/local/nginx 
make 
make install

3、安装好试试Nginx是否能用

cd /usr/local/nginx/sbin 

#启动 
./nginx 

#看80端口是否被nginx占用如果是就说明启动成功 
netstat -ntlp |80 

tcp    0   0 0.0.0.0:80     0.0.0.0:*    LISTEN      8496/nginx: master

#停止 
./nginx -s stop

#判断配置文件是否正确
./nginx -t

4、生成服务

在 /usr/lib/systemd/system下创建nginx.service

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

拷贝下面的内容到nginx.service

[Unit]
Description=nginx - high performance web server
Documentation=http://nginx.org/en/docs/
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=/bin/kill -s HUP $MAINPID
ExecStop=/bin/kill -s QUIT $MAINPID
PrivateTmp=true

[Install]
WantedBy=multi-user.target

 重载服务

#重载服务 
systemctl daemon-reload

常用命令

#启动服务 
systemctl start nginx.service 

#停止服务 
systemctl stop nginx.service 

#开机启动 
systemctl enable nginx.service 

#关闭开机启动 
systemctl disable nginx.service

#pid文件默认在/nginx/logs/下面，如果想修改pid位置需要在/nginx/conf/nginx.conf中修改

vim /usr/local/nginx/conf/nginx.conf

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#这里设置pid位置
pid        logs/nginx.pid;