[root@localhost conf]# pkill nginx

[root@localhost conf]# /opt/nginx1616/sbin/nginx

[root@localhost conf]# /opt/nginx1616/sbin/nginx

nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)

nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)

nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)

nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)

nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)

nginx: [emerg] still could not bind()

nginx.conf主配置文件学习

# nginx工作进程数，根据cpu的核数定义

worker_processes  4;

events {

    # 连接数

    worker_connections  1024;

}

# http区域块,定义nginx的核心web功能

http {

    include(关键字) mime.types(可修改的值);

    default_type application/octet-stream;

    # 定义日志格式

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '

                      '$status $body_bytes_sent "$http_referer" '

                      '"$http_user_agent" "$http_x_forwarded_for"';

    # 开启访问日志功能的参数

    access_log logs/access.log main;

    sendfile on;

    # tcp_nopush on;

    # keepalive_timeout 0;

    # 保持长连接

    keepalive_timeout 65;

    # 支持图片 gif等等压缩,减少网络带宽

    gzip on;

    #这个server标签,控制着nginx的虚拟主机(web站点)

    server {

        # 定义nginx的入口端口是80端口

        listen 80;

        # 填写域名,没有域名就写IP地址

        server_name www.python1616.com;

        # 定义编码

        charset utf-8;

        # location定义网页的访问url

        # 就代表用户的请求是192.168.13.79/

        location / {

            # root参数定义网页根目录

            root /opt/apollo/python1616;;

            # 定义网页首页文件的名字的

            index index.html index.htm;

        }

        # 定义错误页面,客户端的错误,就会返回40x系列错误码

        error_page 404  403 401 400 /404.html;

        # 服务器错误,500系列错误代表后端代码出错

        error_page 500 502 503 504 /50x.html;

    }

    #在另一个server{}的外面，写入新的虚拟主机2

    server{

        listen 80;

        server_name www.linux1616.com;

        location /  {

            # 定义虚拟主机的网页根目录

            root /opt/apollo/linux1616;

            index index.html;

        }

    }

}

error_page  404    /404.html;

# 写上这句话，然后去你项目根目录下面创建一个404.html就ok了