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Legacy Forums => Experienced User Forum => Topic started by: Paul on November 06, 2002, 02:59:24 AM
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.. help..
I am running 5.5 with Post Nuke. I have found that my pages [particularly .gifs] are being cached by my isp.
I just started my research and have discovered that I need to use http headers. I was wondering if Esmith 5.5 has the two modules they say I need -- module=expires and module=headers, and if not..how do I install, configure, etc. them to accomplish my goal. I want to force no caching on my sites -for now.
There was also some reference to htaccess to help with this caching issue to.
I really need help with this guys... and i'm sure someone else out there will to. I am not an expert with any of this stuff but can follow good directions.
I have not run into many good articles on this yet but here is one for starters:
http://www.mnot.net/cache_docs/
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Mod_expires: http://httpd.apache.org/docs/mod/mod_expires.html
Mod_headers: http://httpd.apache.org/docs/mod/mod_headers.html
You're going to need to compile and install the modules. Look at my available modules (I'm 4.1.2) using I see that I do have mod_expires installed, and this is a module I did not install myself.
"mod_ssl, mod_php4, mod_bandwidth, mod_gzip, mod_setenvif, mod_so, mod_usertrack, mod_headers, mod_expires, mod_digest, mod_auth_external, mod_auth_db, mod_auth_anon, mod_auth, mod_access, mod_rewrite, mod_alias, mod_proxy, mod_userdir, mod_actions, mod_imap, mod_asis, mod_cgi, mod_dir, mod_autoindex, mod_include, mod_info, mod_status, mod_negotiation, mod_mime, mod_log_referer, mod_log_agent, mod_log_config, mod_env, http_core"
mod_expires may do what you need it to, you may not need to install mod_headers. In the mod_expires documentation it lists specific expiry commands to affect .gif images, you could use the below command to expire after access.
ExpiresByType image/gif "access plus 5 seconds"
This would expire type .GIF after 5 seconds have passed after access.
These rules must be added to /etc/httpd/conf/httpd.conf
I assume you want to do this for all sites, so you could do a "server config" context.
Follow these steps to implement mod_expires on a global scale, for all vhosts.
mkdir -p /etc/e-smith/templates-custom/etc/httpd/conf/httpd.conf
pico -w /etc/e-smith/templates-custom/etc/httpd/conf/httpd.conf/45Mod_Expires
[Add the following lines]
# Mod_expires configuration
# Expire documents by type or access
ExpiresActive on
ExpiresDefault "access plus 12 hours"
ExpiresByType image/gif "access plus 5 seconds"
ExpiresByType image/html "access plus 5 minutes"
[Save changes]
/sbin/e-smith/expand-template /etc/rc.d/init.d/httpd restart
/etc/rc.d/init.d/httpd restart
You should now be expiring documents based on the above rules. For more information and the configuration of Mod_expires please reference the above URL.
Hope this helped,
Nathan
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Thanks you for your response. I created the diretory and file that you suggested.
I then typed the:
[root@mcn root]# /sbin/e-smith/expand-template /etc/rc.d/init.d/httpd restart
and this was the system response:
No templates were found for //etc/rc.d/init.d/httpd.
at /usr/lib/perl5/site_perl/esmith/util.pm line 88
So I am stuck on this part. Did I screw something up?
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Sorry, I was multi-tasking and I typod.
/sbin/e-smith/expand-template /etc/rc.d/init.d/httpd restart
Should read as:
/sbin/e-smith/expand-template /etc/httpd/conf/httpd.conf
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Ok.. no errors.. I will take a look at whats published now..
One more quick question... how do I run a command to see what modules I have
installed.... thank you VERY much.
I will let you know how this works out.
Thanks again,
Paul
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I simply create a .php file in an HTML directory that has PHP enabled. An IBAY for instance.
pico -w info.php
[Add the lines]
[Save]
Then, just http://www.mydomain.com/info.php
Hope this helped,
Nathan