Detailed explanation of three ways to configure Nginx virtual hosts (based on ports)

[root@localhost conf]# ifconfig ens33:4 192.168.2.154/24 up
[root@localhost conf]# ifconfig
ens33:4: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
 inet 192.168.2.154 netmask 255.255.255.0 broadcast 192.168.2.255
 ether 00:0c:29:16:90:ae txqueuelen 1000 (Ethernet)

[root@localhost conf]# vim /etc/hosts
[root@localhost conf]# cat /etc/hosts|grep 192.168.2.154
192.168.2.154 www.test154.com

[root@localhost conf]# cd /data/www/
[root@localhost www]# mkdir port
[root@localhost www]# cd port/
[root@localhost port]# mkdir 7081 8081 9081
[root@localhost port]# ls
7081 8081 9081
[root@localhost port]# echo "port 7081" > 7081/index.html
[root@localhost port]# echo "port 8081" > 8081/index.html
[root@localhost port]# echo "port 9081" > 9081/index.html

[root@localhost /]# cd /usr/local/nginx/conf/
[root@localhost conf]# ls
fastcgi.conf fastcgi_params koi-utf mime.types nginx.conf scgi_params uwsgi_params win-utf
fastcgi.conf.default fastcgi_params.default koi-win mime.types.default nginx.conf.default scgi_params.default uwsgi_params.default
[root@localhost conf]# vim nginx.conf

# Find the following content in the http section and delete the "#" in front of each line
 log_format main '$remote_addr - $remote_user [$time_local] "$request" '
   '$status $body_bytes_sent "$http_referer" '
   '"$http_user_agent" "$http_x_forwarded_for"';

# Add the following statement before the last "}" at the end of the configuration file, as shown below include vhost/*.conf

[root@localhost vhost]# vim www.test154.7081.conf
[root@localhost vhost]# cat www.test154.7081.conf
 server {
 listen 192.168.2.154:7081;
 # Configure to the actual domain name. The domain name of each virtual host configuration file is the same #server_name www.test.com;

 access_log /data/logs/www.test154.7081.log main;
 error_log /data/logs/www.test154.7081.error.log;

 location / {
  root /data/www/port/7081;
  index index.html index.htm;
 }
 }

[root@localhost vhost]# vim www.test154.8081.conf
[root@localhost vhost]# cat www.test154.8081.conf
 server {
 listen 192.168.2.154:8081;
 # Configure to the actual domain name. The domain name of each virtual host configuration file is the same #server_name www.test.com;

 access_log /data/logs/www.test154.8081.log main;
 error_log /data/logs/www.test154.8081.error.log;

 location / {
  root /data/www/port/8081;
  index index.html index.htm;
 }
 }

[root@localhost vhost]# vim www.test154.9081.conf
[root@localhost vhost]# cat www.test154.9081.conf
 server {
 listen 192.168.2.154:9081;
 # Configure to the actual domain name. The domain name of each virtual host configuration file is the same #server_name www.test.com;

 access_log /data/logs/www.test154.9081.log main;
 error_log /data/logs/www.test154.9081.error.log;

 location / {
  root /data/www/port/9081;
  index index.html index.htm;
 }
 }

[root@localhost /]# mkdir -p /data/logs
[root@localhost /]# touch /data/logs/www.test154.7081.log
[root@localhost /]# touch /data/logs/www.test154.7081.error.log
[root@localhost /]# touch /data/logs/www.test154.8081.log
[root@localhost /]# touch /data/logs/www.test154.8081.error.log
[root@localhost /]# touch /data/logs/www.test154.9081.log
[root@localhost /]# touch /data/logs/www.test154.9081.error.log
[root@localhost /]# ls /data/logs/
www.test154.7081.error.log www.test154.8081.error.log www.test154.9081.error.log
www.test154.7081.log www.test154.8081.log www.test154.9081.log

[root@localhost /]# cd /usr/local/nginx/sbin/
[root@localhost sbin]# ./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
# Start nginx
[root@localhost sbin]# ./nginx

[root@localhost ~]# curl http://www.test154.com:7081
port 7081
[root@localhost ~]# curl http://www.test154.com:8081
port 8081
[root@localhost ~]# curl http://www.test154.com:9081
port 9081

[root@localhost sbin]# curl http://www.test154.com:7081
curl: (7) Failed connect to www.test154.com:7081; Connection refused [root@localhost sbin]# curl 192.168.2.154:7081
curl: (7) Failed connect to 192.168.2.154:7081; Connection refused

[root@localhost conf]# netstat -lnt
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN
tcp 0 0 192.168.2.153:80 0.0.0.0:* LISTEN
tcp 0 0 192.168.2.152:80 0.0.0.0:* LISTEN
tcp 0 0 192.168.2.151:80 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
tcp 0 0 192.168.2.154:8081 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
tcp 0 0 192.168.2.154:9081 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN
tcp 0 0 192.168.2.154:7081 0.0.0.0:* LISTEN
tcp6 0 0 :::111 :::* LISTEN
tcp6 0 0 :::22 :::* LISTEN
tcp6 0 0 :::23 :::* LISTEN
tcp6 0 0 ::1:25 :::* LISTEN