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POLast modification date of web page unknown
 

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    <p>I would like to check the age of the document in the webpage, but it does not show! Here is the result of a telnet to the server: </p> <pre><code>telnet av.hostoi.com 80 Connected to av.hostoi.com. HEAD / HTTP/1.0 HTTP/1.1 200 OK Date: Tue, 23 Oct 2012 16:55:40 GMT Server: Apache X-Powered-By: PHP/5.2.17 Connection: close Content-Type: text/html Connection closed by foreign host. </code></pre> <p>On another server the following 2 lines are also included which are not present above: </p> <pre><code>Last-Modified: Fri, 17 Jun 2011 11:17:45 GMT ETag: "2ce392-b1-4a5e688eae840" </code></pre> <p>So I searched the Internet and as far as I could figure out, there should be a configuration in Apache to set headers on and etag on in htaccess. But I couldn't find any place that shows me that.</p> <p>Here are the loaded modules in Apache if it would help:</p> <pre><code>core mod_authn_file mod_authn_default mod_authz_host mod_authz_groupfile mod_authz_user mod_authz_default mod_auth_basic mod_include mod_filter mod_log_config mod_env mod_expires mod_headers mod_setenvif mod_version prefork http_core mod_mime mod_status mod_autoindex mod_asis mod_info mod_vhost_alias mod_negotiation mod_dir mod_actions mod_alias mod_rewrite mod_so mod_php5 mod_ruid2 </code></pre> <p>As far as I read <code>mod_header</code> must be enabled which seems to be the case.</p> <p>Any help on this?</p> <p>edit: tried the proposed solution: put a .htaccess file in / folder even though there is a file named do not upload here. contents of .htaccess:</p> <pre><code> &lt;code&gt; # Do not remove this line, otherwise mod_rewrite rules will stop working RewriteBase / Options -Indexes SSILastModified on &lt;IfModule mod_expires.c&gt; FileETag MTime Size ExpiresActive on ExpiresDefault "access plus 10 days" ExpiresByType application/javascript "access plus 1 week" ExpiresByType application/x-javascript "access plus 1 week" ExpiresByType application/x-shockwave-flash "access plus 1 week" ExpiresByType text/css "access plus 1 week" ExpiresByType image/jpg "access plus 1 month" ExpiresByType image/jpeg "access plus 1 month" ExpiresByType image/gif "access plus 1 month" ExpiresByType image/png "access plus 1 month" ExpiresByType image/x-icon "access plus 6 month" ExpiresByType image/ico "access plus 6 month" &lt;/IfModule&gt; &lt;/code&gt; </code></pre> <p>i put this file in public_html folder and in the sub folder nod_update3 where the file update.ver exists. then i execute the script that checks the age of the document like so: ./check_http -H av.hostoi.com -u /nod_update3/update.ver -M 2d HTTP CRITICAL: HTTP/1.1 200 OK - Document modification date unknown - 26316 bytes in 0,159 second response time |time=0,158965s;;;0,000000 size=26316B;;;0</p> <p>as you can see no modification date is shown even though on the ftp client it shows it was last modified 25.10.2012</p> <p>i tried the check on another file in the same folder like so: ./check_http -H av.hostoi.com -u /nod_update3/em000_32_l0.nup -M 2d HTTP CRITICAL: HTTP/1.1 200 OK - Last modified 13,5 days ago - 56472 bytes in 1,059 second response time |time=1,059014s;;;0,000000 size=56472B;;;0 srvmon plugins #</p> <p>as you can see the date modification is known. so why the problem with ver file? the file can be checked in this url: <a href="http://av.hostoi.com/nod_update3//update.ver" rel="nofollow">http://av.hostoi.com/nod_update3//update.ver</a></p>
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