图文解说 linux 安装 nginx

使用的是腾讯云主机，选择的镜像如下：
Centos7.9+ 64bit;
nginx 1.18.0

1.安装依赖

yum -y install gcc gcc-c++ wget net-tools pcre-devel zlib-devel openssl-devel

安装完毕，cd /usr/local 目录
2.下载并解压安装包

#进入常用文件夹
cd /usr/local/

#下载源码
wget http://nginx.org/download/nginx-1.18.0.tar.gz

#解压
tar zxvf nginx-1.18.0.tar.gz

#进入目录
cd nginx-1.18.0

3.安装

./configure --prefix=/usr/local/nginx --with-threads --with-file-aio --with-ipv6 --with-pcre --with-http_ssl_module  --with-http_realip_module --with-http_addition_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_auth_request_module --with-http_random_index_module --with-http_secure_link_module --with-http_degradation_module --with-http_stub_status_module --with-mail --with-mail_ssl_module

#编辑
make 
#查看是否有错误
echo $?  //显示0
#安装
make install

#编写nginx启动脚本，并加入系统服务
vi /etc/init.d/nginx

#写入以下内容
#!/bin/bash
# chkconfig: - 30 21
# description: http service.
# Source Function Library
. /etc/init.d/functions
# Nginx Settings

NGINX_SBIN="/usr/local/nginx/sbin/nginx"
NGINX_CONF="/usr/local/nginx/conf/nginx.conf"
NGINX_PID="/usr/local/nginx/logs/nginx.pid"
RETVAL=0
prog="Nginx"

start() {
    
    
        echo -n $"Starting $prog: "
        mkdir -p /dev/shm/nginx_temp
        daemon $NGINX_SBIN -c $NGINX_CONF
        RETVAL=$?
        echo
        return $RETVAL
}

stop() {
    
    
        echo -n $"Stopping $prog: "
        killproc -p $NGINX_PID $NGINX_SBIN -TERM
        rm -rf /dev/shm/nginx_temp
        RETVAL=$?
        echo
        return $RETVAL
}

reload(){
    
    
        echo -n $"Reloading $prog: "
        killproc -p $NGINX_PID $NGINX_SBIN -HUP
        RETVAL=$?
        echo
        return $RETVAL
}

restart(){
    
    
        stop
        start
}

configtest(){
    
    
    $NGINX_SBIN -c $NGINX_CONF -t
    return 0
}

case "$1" in
  start)
        start
        ;;
  stop)
        stop
        ;;
  reload)
        reload
        ;;
  restart)
        restart
        ;;
  configtest)
        configtest
        ;;
  *)
        echo $"Usage: $0 {start|stop|reload|restart|configtest}"
        RETVAL=1
esac

exit $RETVAL


#保存退出 接下来添加权限
chmod 755 /etc/init.d/nginx
#添加nginx到服务
chkconfig --add nginx
#加到开机自动启动
chkconfig nginx on

4.配置

#首先把原来的配置文件清空
> /usr/local/nginx/conf/nginx.conf
#编辑
vi /usr/local/nginx/conf/nginx.conf

#加入如下内容
user nobody nobody;
worker_processes 2;
error_log /usr/local/nginx/logs/nginx_error.log crit;
pid /usr/local/nginx/logs/nginx.pid;
worker_rlimit_nofile 51200;

events
{
    
    
    use epoll;
    worker_connections 6000;
}

http
{
    
    
    include mime.types;
    default_type application/octet-stream;
    server_names_hash_bucket_size 3526;
    server_names_hash_max_size 4096;
    log_format combined_realip '$remote_addr $http_x_forwarded_for [$time_local]'
    '$host "$request_uri" $status'
    '"$http_referer" "$http_user_agent"';
    sendfile on;
    tcp_nopush on;
    keepalive_timeout 30;
    client_header_timeout 3m;
    client_body_timeout 3m;
    send_timeout 3m;
    connection_pool_size 256;
    client_header_buffer_size 1k;
    large_client_header_buffers 8 4k;
    request_pool_size 4k;
    output_buffers 4 32k;
    postpone_output 1460;
    client_max_body_size 10m;
    client_body_buffer_size 256k;
    client_body_temp_path /usr/local/nginx/client_body_temp;
    proxy_temp_path /usr/local/nginx/proxy_temp;
    fastcgi_temp_path /usr/local/nginx/fastcgi_temp;
    fastcgi_intercept_errors on;
    tcp_nodelay on;
    gzip on;
    gzip_min_length 1k;
    gzip_buffers 4 8k;
    gzip_comp_level 5;
    gzip_http_version 1.1;
    gzip_types text/plain application/x-javascript text/css text/htm application/xml;

	#加载其他目录的nginx配置文件
	include /etc/nginx/conf/*.conf;

    server {
    
    
        listen       80 default_server;
        listen       [::]:80 default_server;
        server_name  _;
        root         /usr/share/nginx/html;

        # Load configurat:ion files for the default server block.
        include /usr/local/nginx/default.d/*.conf;

        location / {
    
    
        }

        error_page 404 /404.html;
        location = /404.html {
    
    
        }

        error_page 500 502 503 504 /50x.html;
        location = /50x.html {
    
    
        }
    }
}

5 启动服务

#检验一下配置文件是否有错误存在
/usr/local/nginx/sbin/nginx  -t

#启动nginx
service nginx start
#配置环境变量
vim /etc/profile
修改(增加)path 多个用:分割

让环境变量生效
source /etc/profile

#启动nginx
service nginx start