主配置文件：
1 user nginx;
2 worker_processes 1;
3
4 error_log /var/log/nginx/error.log warn;
5 pid /var/run/nginx.pid;
6
7 events {
8 worker_connections 1024;
9 }
10
11 http {
12 include /etc/nginx/mime.types;
13 default_type application/octet-stream;
14
15 log_format main '$remote_addr - $remote_user [$time_local] "$request" '
16 '$status $body_bytes_sent "$http_referer" '
17 '"$http_user_agent" "$http_x_forwarded_for"';
18
19 access_log /var/log/nginx/access.log main;
20
21 sendfile on;
22 #tcp_nopush on;
23
24 keepalive_timeout 65;
25
26 gzip on;
27
28 #################
29
30 proxy_connect_timeout 300;
31 proxy_send_timeout 300;
32 proxy_read_timeout 300;
33 proxy_buffer_size 16k;
34 proxy_buffers 4 32k;
35
36 proxy_set_header Host $host;
37 proxy_set_header X-Real-IP $remote_addr;
38 proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
39
40 #proxy_set_header X-Forwarded-For $remote_addr;
41 proxy_set_header Connection Close;
42
43 server_names_hash_max_size 1024;
44 server_names_hash_bucket_size 1024;
45
46 # Default cache parameters for use by virtual hosts
47
48 # Set the cache path to tmpfs mounted disk, and the zone name
49
50 # Set the maximum size of the on disk cache to less than the tmpfs file system size
51
52 proxy_cache_path ./cache levels=1:2 keys_zone=pscms:100m max_size=800m;
53
54 proxy_temp_path ./proxy;
55
56 #############
57
58 include /etc/nginx/conf.d/*.conf;
59 }
网站配置文件：
1 upstream web_server {
2 #sticky;
3 server 192.168.203.23;
4 server 192.168.203.24;
5 server 192.168.203.25;
6 # ip_hash;
7 }
8
9 server {
10 listen 80;
11 server_name localhost;
12 charset utf-8;
13 access_log /var/log/nginx/21.log main;
14
15 location / {
16 if ( $remote_addr ~* ^(.*).(.*).(.*).193$){
17 proxy_pass http://192.168.203.22;
18 break;
19 }
20
21 proxy_set_header Host $http_host;
22 proxy_redirect off;
23 proxy_pass http://web_server;
24 proxy_set_header Host $host;
25 proxy_set_header X-Real-IP $remote_addr;
26 proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
27 }
28 }