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Apache Mod_deflate Not Working
For instance if you have very high traffic to your website, and you primarily serve up dynamically generated pages from something like PHP that are rather large in size (> 200K), What happened? In that case the former overrides the latter. How can I claim compensation? Source
Why is (a % 256) different than (a & 0xFF)? First, backup your existing conf file in case you need to revert back: cp /etc/httpd/conf/httpd.conf /etc/httpd/conf/httpd.conf.bak Using vi, we will edit our Apache conf file and add the following lines at Thus, saving you server traffic and speeding up page loads. You can a great discussion as well as reference links by going here. More Help
Apache Enable Mod_deflate
Dealing with proxy servers The mod_deflate module sends a Vary: Accept-Encoding HTTP response header to alert proxies that a cached response should be sent only to clients that send the googve vary header, quite long disccusions about that. –Tazo Todua Aug 22 at 17:37 add a comment| up vote 1 down vote With LogLevel set to debug, mod_deflate will log its DeflateMemLevel Directive Description:How much memory should be used by zlib for compression Syntax:DeflateMemLevel value Default:DeflateMemLevel 9 Context:server config, virtual host Status:Extension Module:mod_deflate The DeflateMemLevel directive specifies how much memory should be
Please feel free to contact us anytime you have questions or need assistance. To answer a question, use the “Answer” field below. Regards, Christi N. Mod_gzip Vs Mod_deflate Not the answer you're looking for?
If you require further assistance with the issue, please post a reply with either your URL(if you are an InMotion customer), or further information on the code being used in the Enable Gzip Compression Htaccess In light of BradM's response, I was wondering therefore if there a critical point where if a site reaches a certain size or traffic, then gzip compression should not be enabled? Article ID: 126997, created on Sep 25, 2015, last review on Sep 28, 2016 Applies to: Plesk Automation 11.5 Question The module mod_deflate in Apache is installed but is not running: I found your note after several hours of navigation.
All rights reserved. Mod_deflate Test If you use some special exclusions dependent on, for example, the User-Agent header, you must manually configure an addition to the Vary header to alert proxies of the additional restrictions. In any case, you should double-check your server config and error logs to see what's going wrong. Why is looping over find's output bad practice?
Enable Gzip Compression Htaccess
Some guides recommend to activate compression of all files except for files that can't be compressed like archives, images, multimedia files, etc. http://httpd.apache.org/docs/2.0/mod/mod_deflate.html Sign up today! Apache Enable Mod_deflate Please note: Due to the performance issues that can be caused by mod_deflate, it should not be used on older shared servers. Mod_gzip Apache Note The DEFLATE filter is always inserted after RESOURCE filters like PHP or SSI.
Header append Vary Accept-Encoding DeflateBufferSize Directive Description:Fragment size to be compressed at one time by zlib Syntax:DeflateBufferSize value Default:DeflateBufferSize 8096 Context:server config, virtual host Status:Extension Module:mod_deflate The DeflateBufferSize directive http://emhsoft.net/not-working/apache-ssi-not-working.php Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the This is why in this guide it just mentions enabling the compression on plain-text files instead of everything on your site. To use mod_deflate, you have two options: Use the Website Optimization option in cPanel. Addoutputfilterbytype Deflate Not Working
I'm not fond of this approach since it can affect much more objects than required. There are more directives for subtle configuring of mod_deflate module. While compression sends smaller files to the end user, the server has to work hard to compress everything it's sending. Do electronics distributers test each component before sending them out? http://emhsoft.net/not-working/apache-www-not-working.php Can spacecraft defend against antimatter weapons?
Make sure you verify the account in the request with either the last 4 digits of your credit card or the AMP password. Mod_deflate Apache Is mod_deflate actually doing its job? (Sorry about the n00b-ishness) apache-2.2 gzip mod-deflate share|improve this question asked Nov 26 '11 at 1:00 Jayraj 133115 add a comment| 3 Answers 3 active Are you sure you want to unaccept it?
Polyglot Anagrams Cops' Thread I used a solution that I happened to already have on my laptop on an exam. To speed up WordPress, a caching plugin like http://www.inmotionhosting.com/support/edu/wordpress/recommended-wordpress-plugins/optimizing-wordpress-with-wp-super-cache is a preferred solution. I recently watched this video by Chris Coyier over at css-tricks.com. Mod_deflate Htaccess Ratio Store the compression ratio (output/input * 100) in the note.
Mod_deflate is an apache module that can be used to compress data using gzip compression before sending it to the user. Sample Configurations Compression and TLS Some web applications are vulnerable to an information disclosure attack when a TLS connection carries deflate compressed data. On the server mod_deflate works, but mod_headers is not. Check This Out phpinfo is meaningless here, it's done on http server level.
The Content-Length header reflects the length of the incoming data from the client and not the byte count of the decompressed data stream. Obviously, you may want to double check httpd.conf to make sure it's actually loading mod_deflate.so as well: SetOutputFilter DEFLATE # Don't compress images SetEnvIfNoCase Request_URI \.(?:gif|png|jpg|jpeg)$ no-gzip dont-vary Header Anyone to help me explain this? Now, we need to check that Apache likes our changes using the apachectl command: /usr/sbin/apachectl -t You should see a Syntax OK message.