Proxy
魷魚代理不記憶體任何東西
魷魚.conf：
http_access allow all # Squid normally listens to port 3128 http_port 3128 accel defaultsite=localhost no-vhost cache_peer localhost parent 80 0 no-query originserver name=myAccel cache_peer_access myAccel allow all # Uncomment and adjust the following to add a disk cache directory. cache_dir ufs /usr/local/var/cache/squid 100 16 256 # Leave coredumps in the first cache dir coredump_dir /usr/local/var/cache/squidSquid 3.2.9，通過 Homebrew 安裝在 OSX 上
localhost: ~ $ squid -v Squid Cache: Version 3.2.9 configure options: '--disable-debug' '--disable-dependency-tracking' '--prefix=/usr/local/Cellar/squid/3.2.9' '--localstatedir=/usr/local/var' 'CC=cc' 'CXX=c++' 'PKG_CONFIG_LIBDIR=/usr/lib/pkgconfig'開始魷魚
squid -f squid.conf -d 2 -N上游正在返回有效的 Cache-Control 標頭，我已通過訪問 Google Chrome 26 中的頁面並在 Chrome 開發工具中觀看來驗證這些標頭是正確的。
localhost: ~ $ curl -s -o /dev/null --dump-header /dev/stdout http://localhost/test.php HTTP/1.1 200 OK Date: Tue, 16 Apr 2013 21:29:33 GMT Server: Apache/2.2.22 (Unix) DAV/2 PHP/5.3.15 with Suhosin-Patch mod_ssl/2.2.22 OpenSSL/0.9.8r X-Powered-By: PHP/5.3.15 Cache-Control: max-age=60, public Content-Length: 16 Content-Type: text/html X-Pad: avoid browser bug但是當我通過 Squid 反向代理查詢頁面時，總是會出現記憶體未命中。
localhost: ~ $ curl -s -o /dev/null --dump-header /dev/stdout http://localhost:3128/test.php HTTP/1.1 200 OK Date: Tue, 16 Apr 2013 21:29:34 GMT Server: Apache/2.2.22 (Unix) DAV/2 PHP/5.3.15 with Suhosin-Patch mod_ssl/2.2.22 OpenSSL/0.9.8r X-Powered-By: PHP/5.3.15 Cache-Control: max-age=60, public Content-Length: 16 Content-Type: text/html X-Cache: MISS from localhost Via: 1.1 localhost (squid/3.2.9) Connection: keep-alive localhost: ~ $ curl -s -o /dev/null --dump-header /dev/stdout http://localhost:3128/test.php HTTP/1.1 200 OK Date: Tue, 16 Apr 2013 21:29:38 GMT Server: Apache/2.2.22 (Unix) DAV/2 PHP/5.3.15 with Suhosin-Patch mod_ssl/2.2.22 OpenSSL/0.9.8r X-Powered-By: PHP/5.3.15 Cache-Control: max-age=60, public Content-Length: 16 Content-Type: text/html X-Cache: MISS from localhost Via: 1.1 localhost (squid/3.2.9) Connection: keep-alive我的配置有什麼問題？
哦，廢話，我想通了。
Squid 忽略小於或等於一分鐘的記憶體頭。所以 max-age=60 被忽略了，但是 max-age=61 就像一個魅力。
<?php Header('Cache-Control: max-age=61'); ?><html>hi</html>