1, Source installation

Step 1: unzip the nginx source package to the / opt directory, customize the configuration, and then compile and install

[root@server opt]# tar xzfv nginx-1.12.2.tar.gz
[root@server opt]# cd nginx-1.12.2/
[root@server nginx-1.12.2]#./configure \
--prefix=/usr/local/nginx \   <-----Specify the installation directory
--user=nginx \     <-----Specify administrative user name
--group=nginx \    <-----Specify the management group name
--with-http_stub_status_module   <---This module must be added to traffic statistics

[root@server nginx-1.12.2]#make && make install

Step 2: add an nginx user to the nginx program, and soft link the nginx command to the system environment variable for easy use and management

[root@server nginx-1.12.2]# useradd -M -s /sbin/nologin nginx
[root@server nginx-1.12.2]# 
[root@server nginx-1.12.2]# 
[root@server nginx-1.12.2]# ln -s /usr/local/nginx/sbin/nginx /usr/local/sbin/

Step 3: write system CTL startup script

[root@server conf]# vim /lib/systemd/system/nginx.service

[Unit]
Description=nginx
After=network.target

[Service]
Type=forking
PIDFile =/usr/local/nginx/logs/nginx.pid
ExecStart=/usr/local/nginx/sbin/nginx
ExecReload=/usr/bin/kill -S HUP $MAINPID
ExecStop=/usr/bin/kill -S QUIT $MAINPID
PrivateTmp=true

[Install]
WantedBy=multi-user.target

Step 4: modify the permission and others cannot start it

[root@server conf]# chmod 754 /lib/systemd/system/nginx.service

Step 5: yum install elink package, which can test nginx web pages directly on linux

[root@server nginx-1.12.2]# yum -y install elinks
 Plug in loaded: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.aliyun.com
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
 Resolving dependencies
--> Checking transactions
---> software package elinks.x86_64.0.0.12-0.37.pre6.el7.0.1 Will be installed

2, Flow statistics

Step 1: modify the nginx configuration file and add the configuration of the traffic statistics module in the server configuration block

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

server {
        listen       192.168.245.120:80;
        server_name  www.cloud.com:80;
        charset utf-8;
        access_log  logs/www.cloud.com.access.log;
        location / {
            root   /var/www/html/cloud;
            index  index.html index.htm;
        }
    location ~/status {
                stub_status on;    <----Turn on flow statistics
                access_log off;    <----Close log
        }

Step 2: restart nginx service

[root@server conf]# systemctl restart nginx.service

Step 3: verify on the client

The access address should be followed by/status: http://192.168.245.120/status

3, Virtual host

1. Based on different domain names

Step 1: add a new server configuration block in nginx configuration file

[root@server conf]# vim /usr/local/nginx/conf/nginx.conf
server {
        listen       80;
        server_name  www.yjs.com;   <---Specify domain name
        charset utf-8;
        access_log  logs/www.yjs.com.access.log;   <---Specify the access log when accessing the domain name
        location / {
            root   /var/www/html/yjs;   <---Specify home page site
            index  index.html index.htm;
       }
         error_page   500 502 503 504  /50x.html;
         location = /50x.html {
         root   html;
       }

server {
        listen       80;
        server_name  www.cloud.com;   <---Specify domain name
        charset utf-8;
        access_log  logs/www.cloud.com.access.log;   <---Specify the access log when accessing the domain name
        location / {
            root   /var/www/html/cloud;   <---Specify home page site
            index  index.html index.htm;
        }
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
        }

Step 2: create the home page sites of two domain names and create their own home pages

[root@server conf]# mkdir -p /var/www/html/yjs
[root@server conf]# mkdir -p /var/www/html/cloud
[root@server conf]# 
[root@server conf]# 
[root@server conf]# echo "this is yjs" > /var/www/html/yjs/index.html
[root@server conf]# echo "this is cloud" > /var/www/html/cloud/index.html

Step 3: modify the DNS zone configuration file

[root@server conf]# vim /etc/named.rfc1912.zones 

zone "cloud.com" IN {    <---Specify domain name
        type master;
        file "cloud.com.zone";  <---Specify area data file
        allow-update { none; };
};

zone "yjs.com" IN {    <---Specify domain name
        type master;
        file "yjs.com.zone";     <---Specify area data file
        allow-update { none; };
};

Step 4: configure the area data file. Both domain names point to the address 192.168.245.120

[root@server conf]# cd /var/named
[root@server named]# ls
cloud.com.zone  data  dynamic  named.ca  named.empty  named.localhost  named.loopback  slaves
[root@server named]# cp -p cloud.com.zone yjs.com.zone
[root@server conf]# vim /var/named/cloud.com.zone 

$TTL 1D
@       IN SOA  @ rname.invalid. (
                                        0       ; serial
                                        1D      ; refresh
                                        1H      ; retry
                                        1W      ; expire
                                        3H )    ; minimum
        NS      @
        A       127.0.0.1
www IN  A       192.168.245.120

Step 5: restart the domain name service

[root@server named]# systemctl restart named

Step 6: check the syntax of nginx configuration file and start nginx

[root@server conf]# nginx -t
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
[root@server conf]# 
[root@server conf]# 
[root@server conf]# systemctl restart nginx.service

Step 7: visit different domain names on the client and different pages will appear

2. Based on different ports

Step 1: modify the nginx configuration file and modify the server configuration block

[root@server conf]# vim /usr/local/nginx/conf/nginx.conf
 server {
        listen       192.168.245.120:80;
        server_name  www.cloud.com;
        charset utf-8;
        access_log  logs/www.cloud.com.access.log;
        location / {
            root   /var/www/html/cloud;
            index  index.html index.htm;
        }
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

    }
 server {
        listen       192.168.245.120:8080;   <---The listening address is the same, and the port is set to 8080
        server_name  www.cloud.com:8080;  <---You should also add 8080 to the domain name you visit
        charset utf-8;
        access_log  logs/www.cloud8080.com.access.log;  <---Specify access log
        location / {
            root   /var/www/html/cloud8080;   <---Specify site
            index  index.html index.htm;
        }
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
        }

Step 2: create a web site and web content accessing port 8080

[root@server conf]# mkdir -p /var/www/html/cloud8080
[root@server conf]# 
[root@server conf]# 
[root@server conf]# echo "this is cloud 8080" > /var/www/html/cloud8080/index.html

Step 3: check nginx syntax and restart the service

[root@server conf]# nginx -t
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
[root@server conf]# 
[root@server conf]# systemctl restart nginx.service 

Step 4: verify that another page is available when you visit port 8080 on the client

3. Different domain names based on different ip addresses

That is, different ip addresses point to different domain names and different web pages

Step 1: create a new area data file. The ip of the domain name is 192.168.245.130

[root@server ~]# vim /var/named/yjs.com.zone 

$TTL 1D
@       IN SOA  @ rname.invalid. (
                                        0       ; serial
                                        1D      ; refresh
                                        1H      ; retry
                                        1W      ; expire
                                        3H )    ; minimum
        NS      @
        A       127.0.0.1
www IN  A       192.168.245.130

Step 2: restart DNS Service

[root@server ~]# systemctl restart named

Step 3: successful parsing on the client

Step 4: modify nginx configuration file

[root@server ~]# vim /usr/local/nginx/conf/nginx.conf
server {
        listen       192.168.245.130:80;  <---appoint ip
        server_name  www.yjs.com:80;   <---Specify domain name
        charset utf-8;
        access_log  logs/www.yjs.com.access.log;  <---Specify access log
        location / {
            root   /var/www/html/yjs;   <---Specify site directory
            index  index.html index.htm;
        }
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

    }

server {
        listen       192.168.245.120:80;    <---appoint ip
        server_name  www.cloud.com:80;    <---Specify domain name
        charset utf-8;
        access_log  logs/www.cloud.com.access.log;   <---Specify access log
        location / {
            root   /var/www/html/cloud;   <---Specify site directory
            index  index.html index.htm;
        }
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

Step 5: enter their respective sites and write their own home page content

[root@server conf]# vim /var/www/html/yjs/index.html 
[root@server conf]# echo "this is yjs web" > /var/www/html/yjs/index.html
[root@server conf]# 
[root@server conf]# 
[root@server conf]# vim /var/www/html/cloud/index.html 
[root@server conf]# echo "this is cloud web" > /var/www/html/cloud/index.html

Step 6: check nginx syntax and restart the service

[root@server ~]# cd /usr/local/nginx/conf/

[root@server conf]# nginx -t
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful

[root@server ~]# systemctl restart nginx.service

Step 7: access authentication on the client