nginx 配置篇

简单版nginx虚拟主机配置

基于域名的虚拟主机

[root@localhost conf]# cat nginx.conf
user nginx nginx;      #用nginx去访问nginx   
worker_processes  1;   #进程数,通常是CPU 乘 2
error_log  /yellow.log/error.log  crit;  #crit 日志级别(严重)

pid        logs/nginx.pid;
events {               #事件
    use  epoll;         #使用的IO模型	
    worker_connections  1024;  #进程连接数
}
http {
    include       mime.types;
    default_type  application/octet-stream;

#nginx日志格式,也可以加错误日志,如果不加默认走上边全局的
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';	

    sendfile        on;
    keepalive_timeout  65;
#server是虚拟主机配置
    server {
        listen       80;
        server_name  www.huangxu.com huangxu.com;  #第二个是别名   
        location / {
            root   /yellow;  #站点目录
            index  index.html index.htm; #首页文件
	    access_log  /yellow.log/access_ye.log   main   ;	 #main 是上边调用的
        }
        error_page   500 502 503 504  /50x.html;  #错误页面
        location = /50x.html {
            root   html;
        }
    }
#########
    server {
        listen       80;
        server_name  www.huanghuang.com huanghuang.com;  #第二个是别名
        location / {
            root   /huangxu;  #站点目录
            index  index.html index.htm; #首页文件
        }
        error_page   500 502 503 504  /50x.html;  #错误页面
        location = /50x.html {
            root   html;
        }
    }

}

　　具体配置文件格式参照nginx/conf/下的nginx.conf.default  这个文件

由于虚拟主机过多我也可这样管理虚拟主机

mkdir /etc/opt/nginx/conf/extra

cp /etc/opt/nginx/conf/nginx.conf   /etc/opt/nginx/conf/extra/nginx_vhosts.conf

[root@localhost conf]# cat nginx.conf
user nginx nginx;      #用nginx去访问nginx   
worker_processes  1;   #进程数,通常是CPU 乘 2
error_log  /yellow.log/error.log  crit;  #crit 日志级别(严重)

pid        logs/nginx.pid;
events {               #事件
    use  epoll;         #使用的IO模型	
    worker_connections  1024;  #进程连接数
}
http {
    include       mime.types;
    default_type  application/octet-stream;


#nginx日志格式,也可以加错误日志,如果不加默认走上边全局的
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';	

    sendfile        on;
    keepalive_timeout  65;

    include extra/nginx_vhosts.conf;
}

　　用include 将所有的server虚拟主机引进来,通过文件的形式来管理虚拟主机

cd /etc/opt/nginx/conf/extra/nginx_vhosts.conf

[root@localhost extra]# cat nginx_vhosts.conf 
#server是虚拟主机配置
    server {
        listen       80;
        server_name  www.huangxu.com huangxu.com;  #第二个是别名   
        location / {
            root   /yellow;  #站点目录
            index  index.html index.htm; #首页文件
	    access_log  /yellow.log/access_ye.log   main   ;	 #main 是上边调用的
        }
        error_page   500 502 503 504  /50x.html;  #错误页面
        location = /50x.html {
            root   html;
        }
    }
#########
    server {
        listen       80;
        server_name  www.huanghuang.com huanghuang.com;  #第二个是别名
        location / {
            root   /huangxu;  #站点目录
            index  index.html index.htm; #首页文件
        }
        error_page   500 502 503 504  /50x.html;  #错误页面
        location = /50x.html {
            root   html;
        }
    }

egrep -v "#|^$" nginx.conf > nginx.conf.bak  去掉空行并重定向到新的文件
mv nginx.conf.bak nginx.conf
mkdir /yellow     创建站点
chown -R nginx.nginx /yellow/      使nginx有管理站点的权限
mkdir /yellow.log　　　　　　　　创建站点日志
 echo www > /yellow/index.html     创建站点访问首页
/etc/opt/nginx/sbin/nginx -t                               检查语法
/etc/opt/nginx/sbin/nginx -s reload                   平滑重启
 lsof -i:80　　　　　　　　　　　  检查端口　
 ps -ef | gerp nginx
 wget http://192.168.1.104
 cat index.html
 wget http://www.huangxu.com   


需要添加本地域名解析

C:WindowsSystem32driversetchosts

# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
#      102.54.94.97     rhino.acme.com          # source server
#       38.25.63.10     x.acme.com              # x client host

# localhost name resolution is handled within DNS itself.
#	127.0.0.1       localhost
#	::1             localhost
0.0.0.0 account.jetbrains.com
192.168.1.104      www.huangxu.com  huangxu.com

 在浏览器中输入域名，如果返回www则正确

如果再添加虚拟主机只需要在添加一个server标签即可，其他都与上边一样

[root@localhost huangxu]# ps -ef | grep nginx
root      38005      1  0 10:28 ?        00:00:00 nginx: master process /etc/opt/nginx/sbin/nginx
nginx     38450  38005  0 12:11 ?        00:00:00 nginx: worker process    
root      38452   4286  0 12:11 pts/1    00:00:00 grep nginx
[root@localhost huangxu]# cat /etc/opt/nginx/conf/nginx.conf
user nginx nginx;      #用nginx去访问nginx   
worker_processes  1;   #进程数,通常是CPU 乘 2
events {               #事件
    use  epoll;         #使用的IO模型	
    worker_connections  1024;  #进程连接数
}
http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    keepalive_timeout  65;
   #server是虚拟主机配置
    server {
        listen       80;
        server_name  www.huangxu.com huangxu.com;  #第二个是别名   
        location / {
            root   /yellow;  #站点目录
            index  index.html index.htm; #首页文件
        }
        error_page   500 502 503 504  /50x.html;  #错误页面
        location = /50x.html {
            root   html;
        }
    }
#########
    server {
        listen       80;
        server_name  www.huanghuang.com huanghuang.com;  #第二个是别名
        location / {
            root   /huangxu;  #站点目录
            index  index.html index.htm; #首页文件
        }
        error_page   500 502 503 504  /50x.html;  #错误页面
        location = /50x.html {
            root   html;
        }
    }

}

　　

 基于端口的虚拟主机配置

访问时需要域名+端口

 server {
        listen       8080; 
        server_name  www.huanghuang.com huanghuang.com;  #第二个是别名
        location / {
            root   /huangxu;  #站点目录
            index  index.html index.htm; #首页文件
        }
        error_page   500 502 503 504  /50x.html;  #错误页面
        location = /50x.html {
            root   html;
        }
    }

基于ip的虚拟主机

需要每台虚拟主机都有个ip

创建虚拟ip: ifconfig eth0:192.168.1.111 netmask 255.255.255.0 up

访问例子：http://ip

 server {
        listen       192.168.1.111:8080;
        server_name  192.168.1.111;
        location / {
            root   /huangxu;  #站点目录
            index  index.html index.htm; #首页文件
        }
        error_page   500 502 503 504  /50x.html;  #错误页面
        location = /50x.html {
            root   html;
        }
    }

基于别名

　　　　别名可以设置多个，可以通过别名来判断后端机器的健康状况

 server {
        listen       8080;
        server_name  www.huanghuang.com huanghuang.com aaa.huang.com;  域名后的都是别名
        location / {
            root   /huangxu;  #站点目录
            index  index.html index.htm; #首页文件
        }
        error_page   500 502 503 504  /50x.html;  #错误页面
        location = /50x.html {
            root   html;
        }
    }

负载均衡和反向代理参考文章

https://blog.csdn.net/wm_1991/article/details/51935273

基于keeplived的负载均衡

https://www.cnblogs.com/wang-meng/p/5861174.html‘

反向代理负载均衡

https://www.cnblogs.com/Miss-mickey/p/6734831.html