我已经在 DigitalOcean 上的 CentOS7.2 上设置了 nginx 网络服务器（单个站点）。
按照一些操作指南，我成功设置了 nginx 和缓存，但尽管反复访问我的网站，我的缓存文件夹仍然是空的。
没有报告错误并且其他一切正常。
nginc.conf如下：
# For more information on configuration, see:
# * Official English Documentation: http://nginx.org/en/docs/
# * Official Russian Documentation: http://nginx.org/ru/docs/
user nginx;
worker_processes 2;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;
# Load dynamic modules. See /usr/share/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;
events {
worker_connections 2048;
multi_accept on;
}
http {
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
#access_log /var/log/nginx/access.log main;
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 15;
gzip_vary on;
gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
client_body_buffer_size 128K;
client_header_buffer_size 1k;
client_max_body_size 8m;
large_client_header_buffers 2 1k;
include /etc/nginx/mime.types;
default_type application/octet-stream;
# Load modular configuration files from the /etc/nginx/conf.d directory.
# See http://nginx.org/en/docs/ngx_core_module.html#include
# for more information.
#include /etc/nginx/conf.d/*.conf; --> nothing there, hence commenting
fastcgi_cache_path /etc/nginx-cache levels=1:2 keys_zone=PHPCACHE:1024m inactive=60m;
fastcgi_cache_key "$scheme$request_method$host$request_uri";
server {
listen 80;
listen [::]:80;
server_name www.31west.net;
return 301 https://www.31west.net$request_uri;
}
server {
listen 80;
listen [::]:80;
server_name 31west.net;
return 301 https://www.31west.net$request_uri;
}
# Settings for a TLS enabled server.
server {
listen 443 ssl http2 default_server;
listen [::]:443 ssl http2 default_server;
server_name www.31west.net;
root /usr/share/nginx/html;
index index.php index.html index.htm;
error_log /var/log/error_log info;
ssl on;
ssl_certificate "/etc/nginx/ssl/31West-bundle.crt";
ssl_certificate_key "/etc/nginx/ssl/31west.key";
ssl_prefer_server_ciphers on;
ssl_session_cache shared:SSL:10m;
ssl_session_timeout 10m;
ssl_buffer_size 16k;
ssl_ciphers HIGH:!aNULL:!MD5;
if ($host = '31west.net' ) {
rewrite ^/(.*)$ https://www.31west.net/$1 permanent;
}
#Cache everything by default
set $no_cache 0;
#Don't cache POST requests
if ($request_method = POST)
{
set $no_cache 1;
}
#Don't cache if the URL contains a query string
if ($query_string != "")
{
set $no_cache 1;
}
#Don't cache the following URLs
if ($request_uri ~* "/(administrator/|login.php)")
{
set $no_cache 1;
}
#Don't cache if there is a cookie called PHPSESSID
if ($http_cookie = "PHPSESSID")
{
set $no_cache 1;
}
open_file_cache max=10000 inactive=10m;
open_file_cache_valid 20m;
open_file_cache_min_uses 5;
open_file_cache_errors on;
large_client_header_buffers 4 16k;
location ~ \.php$ {
fastcgi_cache PHPCACHE;
fastcgi_cache_valid 200 60m;
fastcgi_cache_methods GET HEAD;
add_header X-Fastcgi-Cache $upstream_cache_status;
fastcgi_cache_bypass $no_cache;
fastcgi_no_cache $no_cache;
try_files $uri $uri/ =404;
fastcgi_pass unix:/var/run/php-fpm/php-fpm.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_param SCRIPT_NAME $fastcgi_script_name;
fastcgi_buffer_size 128k;
fastcgi_buffers 256 16k;
fastcgi_busy_buffers_size 256k;
fastcgi_temp_file_write_size 256k;
include fastcgi_params;
}
# Load configuration files for the default server block -- nothing there, hence commented
#include /etc/nginx/default.d/*.conf;
location / {
try_files $uri $uri/ =404;
}
location /blog/ {
try_files $uri $uri/ /blog/index.php?$args;
}
error_page 404 /404.php;
location = /40x.php {
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
}
location ~* \.(jpg|jpeg|png|gif|ico|css|js|woff)$ {
expires 1w;
}
# We enable the Gzip compression for some mime types
gzip on;
gzip_disable "msie6";
gzip_min_length 1100;
gzip_buffers 4 32k;
gzip_proxied expired no-cache no-store private auth;
gzip_comp_level 5;
gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss application/x-javascript text/javascript;
gzip_vary on;
}
}
请帮我理解我可能遗漏了什么。我正在尝试将 TTFB 缩短至 100 毫秒以下（目前为 420 毫秒）
提前致谢！
答案1
看起来它运行良好。
测试我的网站页面得到以下结果，因此造成混淆。
curl -I https://www.31west.net
HTTP/1.1 200 OK
Server: nginx/1.10.2
Date: Fri, 12 May 2017 12:05:25 GMT
Content-Type: text/html; charset=utf-8
Connection: keep-alive
Vary: Accept-Encoding
X-Powered-By: PHP/5.4.16
X-XSS-Protection: 0
Set-Cookie: PHPSESSID=d4vsle1tbersa504vpfr058ln7; path=/
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre- check=0
Pragma: no-cache
X-Fastcgi-Cache: MISS
使用小型演示页面进行测试得出以下结果。
curl -I https://www.31west.net/a.php
HTTP/1.1 200 OK
Server: nginx/1.10.2
Date: Fri, 12 May 2017 12:17:25 GMT
Content-Type: text/html
Connection: keep-alive
Vary: Accept-Encoding
X-Powered-By: PHP/5.4.16
X-Fastcgi-Cache: HIT
但即使只有 10 字节测试页面和上述 nginx 配置，托管在 2 GB RAM、2 核处理器硬件的 DO 上，我的 TTFB 也为 430 毫秒
我已经用尽所有可能的配置来改进它。
任何建议都将不胜感激。