nginx配置fastcgi_cache，有效提升访问速度

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http部分增加以下内容：

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fastcgi_cache_path  /home/cache/path levels=1:2 keys_zone=WORDPRESS:128m inactive=1d max_size=10g;
fastcgi_temp_path /home/cache/temp;
fastcgi_cache_key "$scheme$request_method$host$request_uri";
fastcgi_cache_use_stale error timeout invalid_header http_500;

fastcgi_ignore_headers Cache-Control Expires Set-Cookie;

server部分增加以下内容(wordpress适用)：

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set $skip_cache 0;
   #post访问不缓存
   if ($request_method = POST) {
            set $skip_cache 1;
        }   
   #动态查询不缓存
   if ($query_string != "") {
            set $skip_cache 1;
        }   
   #后台等特定页面不缓存（其他需求请自行添加即可）
   if ($request_uri ~* "/wp-admin/|/xmlrpc.php|wp-.*.php|/feed/|index.php|sitemap(_index)?.xml") {
            set $skip_cache 1;
        }   
   #对登录用户、评论过的用户不展示缓存
   if ($http_cookie ~* "comment_author|wordpress_[a-f0-9]+|wp-postpass|wordpress_no_cache|wordpress_logged_in") {
            set $skip_cache 1;
        }


location下增加以下内容

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fastcgi_cache_bypass $skip_cache;
    fastcgi_no_cache $skip_cache;
    add_header X-Cache "$upstream_cache_status From $host";
    add_header Nginx-Cache "$upstream_cache_status";
    add_header Last-Modified $date_gmt;
    add_header X-Frame-Options SAMEORIGIN; 
    add_header X-Content-Type-Options nosniff; 
    add_header X-XSS-Protection "1; mode=block";
    fastcgi_cache WORDPRESS;
    fastcgi_cache_valid 200 301 302 1d;

完整代码

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fastcgi_cache_path  /home/cache/path levels=1:2 keys_zone=WORDPRESS:128m inactive=1d max_size=10g;
fastcgi_temp_path /home/cache/temp;
fastcgi_cache_key "$scheme$request_method$host$request_uri";
fastcgi_cache_use_stale error timeout invalid_header http_500;

fastcgi_ignore_headers Cache-Control Expires Set-Cookie;

server {
   listen 80;
   listen 443 ssl http2;
  …………………此部省略……………………
  
   set $skip_cache 0;
   #post访问不缓存
   if ($request_method = POST) {
            set $skip_cache 1;
        }   
   #动态查询不缓存
   if ($query_string != "") {
            set $skip_cache 1;
        }   
   #后台等特定页面不缓存（其他需求请自行添加即可）
   if ($request_uri ~* "/wp-admin/|/xmlrpc.php|wp-.*.php|/feed/|index.php|sitemap(_index)?.xml") {
            set $skip_cache 1;
        }   
   #对登录用户、评论过的用户不展示缓存
   if ($http_cookie ~* "comment_author|wordpress_[a-f0-9]+|wp-postpass|wordpress_no_cache|wordpress_logged_in") {
            set $skip_cache 1;
        }
	
   location ~ [^/]\.php(/|$) {
    #fastcgi_pass remote_php_ip:9000;
    fastcgi_pass unix:/dev/shm/php-cgi.sock;
    fastcgi_index index.php;
    include fastcgi.conf;
    add_header Strict-Transport-Security "max-age=63072000; includeSubdomains; preload";
    #新增的缓存规则
    fastcgi_cache_bypass $skip_cache;
    fastcgi_no_cache $skip_cache;
    add_header X-Cache "$upstream_cache_status From $host";
    add_header Nginx-Cache "$upstream_cache_status";
    add_header Last-Modified $date_gmt;
    add_header X-Frame-Options SAMEORIGIN; 
    add_header X-Content-Type-Options nosniff; 
    add_header X-XSS-Protection "1; mode=block";
    fastcgi_cache WORDPRESS;
    fastcgi_cache_valid 200 301 302 1d;
  }
  
  #缓存清理配置（可选）
  location ~ /purge( /.*) { #为防止转义，请去掉{ /之间的空格
    allow 127.0.0.1;
    allow xxx.xxx.xxx.xxx;
    deny all;

    fastcgi_cache_purge WORDPRESS "$scheme$request_method$host$1";
    }

文章来源：https://zhuanlan.zhihu.com/p/168688875