Apache – How to disable gzip content encoding (eg DEFLATE) for one set of URLs

apache-2.2deflategzipmod-deflate

I have a ubuntu apache webserver and I have enabled mod_deflate to gzip all the content. However there's one folder I'd like to disable the mod_deflate for. I was going to do something like this:

<Location /myfolder>
   RemoveOutputFilter DEFLATE
</Location>

But that doesn't work.

Rational: I am trying to debug an XMLRPC server and I am using wireshark to see what gets past in the HTTP requests, since the replies are gzipped, I can't see what's going on.

Best Answer

I believe that RemoveOutputFilter expects a file extension, not a filter type. It should be something like:

<Location /myfolder>
      RemoveOutputFilter html 
</Location>

or whatever file extension you're using in that directory.

Related Solutions

Windows – Content Encoding Error when trying to use GZip on Apache

The first issue is that you have the element with a directory from the file system...

This is from the Apache manual:

When to use <Location>. Use <Location> to apply directives to content that lives outside the filesystem. For content that lives in the filesystem, use <Directory> and <Files>. An exception is <Location />, which is an easy way to apply a configuration to the entire server.

When I setup mod_deflate on Apache I use this setup:

# --------------------------------------------------------
# Deflate Module Configuration
# --------------------------------------------------------
<IfModule deflate_module>
  # Set the location to webservers root
  <Location />
    # Insert the filters
    SetOutputFilter DEFLATE

    # Netscape 4.x has some problems
    BrowserMatch ^Mozilla/4 gzip-only-text/html
    # Netscape 4.06-4.08 have some more problems
    BrowserMatch ^Mozilla/4.0[678] no-gzip
    # MSIE masquerades as Netscape, but it is fine
    BrowserMatch \bMSIE !no-gzip !gzip-only-text/html

    # Make sure proxies don't deliver the wrong content
    Header append Vary User-Agent env=!dont-vary

    # Make sure to never zip binaries (ie6 and chrome has issues with this.)
    SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip dont-vary
    SetEnvIfNoCase Request_URI \.(?:exe|t?gz|zip|bz2|sit|rar)$ no-gzip dont-vary
    SetEnvIfNoCase Request_URI \.pdf$ no-gzip dont-vary
  </Location>

    # Enable mod_deflate logging by uncommenting these lines
    #DeflateFilterNote Input instream
    #DeflateFilterNote Output outstream
    #DeflateFilterNote Ratio ratio

    #LogFormat '"%r" %{outstream}n/%{instream}n (%{ratio}n%%)' deflate
    #CustomLog logs/deflate_log deflate 
</IfModule>

How to find out if the apache server is compiled with gzip

try running from command line:

apache2 -l

this should give you list of modules built into apache. more probably you'll have gzip as additional loadable module called mod_deflate.so - check if any of your .load loads this one.

if you use debian'ish distro [ it seems so ] just symlink deflate.load and deflate.conf from mods-available to mods-enabled:

cd /etc/apache2/mods-enabled/
ln -s ../mods-available/deflate.load
ln -s ../mods-available/deflate.conf

and reload apache2

/etc/init.d/apache2 reload

Best Answer

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