worker_processes 4;error_log logs/error.log;events {  worker_connections 1024;}http {  include    mime.types;  default_type application/octet-stream;  sendfile    on;  keepalive_timeout 65;gzip on;gzip_min_length 1k;gzip_buffers 16 64k;gzip_http_version 1.1;gzip_comp_level 6;gzip_types text/plain application/x-javascript text/css application/xml application/javascript;gzip_vary on;  #指向項目一  upstream backend1 {    server 192.168.1:8081;  }  #指向項目二  upstream backend2{    192.168.1.1:8082;  }  proxy_cache_path /tmp/cache levels=1:2 keys_zone=cache:128m inactive=1d max_size=1G;  include vhosts/*;}

worker_processes 2;events {  worker_connections 1024;}http {  include    mime.types;  default_type application/octet-stream;  access_log /home/nginx_log/reverse_proxy_no1_access.log;  sendfile    on;  keepalive_timeout 65;  upstream backend1 {    #server 192.168.1.1:8181;  server 192.168.1.1:8081;  }  upstream backend2 {    #server 192.168.1.1:8082;  server 192.168.1.1:8082;  }  proxy_cache_path /tmp/cache levels=1:2 keys_zone=cache:128m inactive=30m max_size=1G;  server {    listen    8081;    server_name h5.xxxx.com;    location / {        proxy_pass http://backend1;      #Proxy Settings        proxy_redirect   off;       proxy_set_header  Host       $host;      proxy_set_header  X-Real-IP    $remote_addr;      proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;      proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504;      proxy_max_temp_file_size 0;      proxy_connect_timeout   90;      proxy_send_timeout     90;      proxy_read_timeout     90;      proxy_buffer_size     4k;      proxy_buffers       4 32k;      proxy_busy_buffers_size  64k;      proxy_temp_file_write_size 64k;    add_header Nginx-Res "http://backend1";    }    location ~ ^/(h5)(.*)$ {        proxy_pass http://backend2;       proxy_redirect off;       proxy_set_header Host $host;       proxy_cache cache;       proxy_cache_valid 200 302 1d;       proxy_cache_valid 301 1d;       proxy_cache_valid any 1m;       expires 1h;     add_header Nginx-Res "http://backend2";       proxy_ignore_headers "Cache-Control" "Expires" "Set-Cookie";       add_header Nginx-Cache "$upstream_cache_status";     }        error_page  500 502 503 504 /50x.html;    location = /50x.html {      root  html;    }  location ~ .*/.(gif|jpg|png|css|js|ico)(.*) {       proxy_pass http://backend1;       proxy_redirect off;       proxy_set_header Host $host;       proxy_cache cache;       proxy_cache_valid 200 302 30d;       proxy_cache_valid 301 1d;       proxy_cache_valid any 1m;       expires 30d;       proxy_ignore_headers "Cache-Control" "Expires" "Set-Cookie";     add_header Nginx-Res "http://backend1";       add_header Nginx-Cache "$upstream_cache_status";    }