expires off not applying

[Erik Karulf]

After looking at the documentation some more, I can not figure out why this
line is failing
$request_filename !~* "^.+.(php|php3)$"
The index option is set to use index.php, and $request_filename should be
ending in .php, yet it still falls through the conditional and sets the
expiration headers.

Any insight?

-Erik


On 4/16/07, Erik Karulf <erik at karulf.com> wrote:
>
> Hello All!
> I am relatively new nginx user (~ 3 months), a convert from the lighttpd
> camp.
> I have been very happy with the elegance and power behind nginx and I am
> in the process of converting all of the servers in our cluster to
> nginx/apache/mongrel (from lighttpd and scgi)
>
> Anyway, here is my problem.
> The environment is FreeBSD 6.2 running on AMD 64
> I have nginx 0.5.11 setup to forward PHP requests to apache 1.3 (bound to
> 127.0.0.1:8080)  while serving static files locally using sendfile(2)
>
> Nginx seems to be modifying the expiration and cache control headers when
> I go to /, yet eerily enough it leaves them alone if you go to /index.php.
> Here are the associated http response headers:
>
> For /
>   Server    nginx/0.5.11
>   Date    Mon, 16 Apr 2007 13:04:12 GMT
>   Content-Type    text/html; charset=ISO-8859-1
>   Transfer-Encoding    chunked
>   Connection    keep-alive
>   X-Powered-By    PHP/5.2.1
>   Expires    Wed, 16 May 2007 13:04:12 GMT
>   Cache-Control    max-age=2592000
>   Pragma    no-cache
>   Content-Encoding    gzip
>
> For /index.php
>   Server    nginx/0.5.11
>   Date    Mon, 16 Apr 2007 13:05:14 GMT
>   Content-Type    text/html; charset=ISO-8859-1
>   Transfer-Encoding    chunked
>   Connection    keep-alive
>   X-Powered-By    PHP/5.2.1
>   Expires    0
>   Cache-Control    private, post-check=0, pre-check=0, max-age=0
>   Pragma    no-cache
>   Content-Encoding    gzip
>
> I have attached my nginx.conf below. Also if you have any optimization
> recommendations, please let me know.
> Thanks for the help!
>
> -Erik Karulf
>
> nginx.conf>>EOF
> user  www;
> worker_processes  1;
> #pid        logs/nginx.pid;
>
> events {
>   worker_connections  8192;
>   use kqueue;
> }
>
>
> http {
>   include       mime.types;
>   default_type  application/octet-stream;
>   access_log        off;
>   error_log         off;
>   sendfile          on;
>   tcp_nopush        on;
>   tcp_nodelay       on;
>
>   keepalive_timeout 65;
>   server_names_hash_bucket_size 128; # this seems to be required for
> vhosts
>
>   gzip              on;
>   gzip_min_length   1100;
>   gzip_buffers      4 8k;
>   gzip_http_version 1.0;
>   gzip_comp_level   2;
>   gzip_proxied      any;
>   gzip_types        text/plain text/html text/css application/x-javascript
> text/xml application/xml application/xml+rss text/javascript;
>
>   proxy_redirect           off;
>   proxy_set_header         Host $host;
>   proxy_set_header         X-Real-IP $remote_addr;
>   proxy_set_header         X-Forwarded-For $proxy_add_x_forwarded_for;
>   client_max_body_size     10m;
>   client_body_buffer_size  128k;
>   proxy_connect_timeout    90;
>   proxy_send_timeout       90;
>   proxy_read_timeout       90;
>   proxy_buffer_size        4k;
>   proxy_buffers            4 32k;
>   proxy_busy_buffers_size  64k;
>   proxy_temp_file_write_size  64k;
>
>
>   # http://forums.example.com
>   server {
>      listen         80;
>      server_name    forums.example.com;
>
>      location / {
>         root   /www/forums.example.com/;
>         index  index.html index.htm index.php;
>
>         if ($request_filename !~* "^.+.(php|php3)$") {
>            root   /www/forums.example.com/;
>            expires    30d;
>            break;
>         }
>         expires    off;
>         proxy_pass http://127.0.0.1:8080/;
>      }
>
>      location = /clear.gif {
>         empty_gif;
>         expires     30d;
>      }
>   }
> }
> EOF
>
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