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

apache-2.2configuration

I know that my site is not sending data gzipped. I tested that using site like http://www.gidnetwork.com/tools/gzip-test.php

Now I want to know if apache is compiled with gzip module or not. Before I put in the code that will serve the compressed content I want to test if gzip is enabled on my apache server or do I need to build it. How do I test that. How do I put a debug statement that will show up in apache log. I believe I can do something like this but not sure.

 <IfModule mod_gzip.c>  
   log('apache is configured with gzip. no need to install it')  
</IfModule>

What code will go in place of log so that I could see the message in apache log. Also how can I write else statement so that I get a message either way.

Here is my apache.conf

# Include module configuration:
Include /etc/apache2/mods-enabled/*.load
Include /etc/apache2/mods-enabled/*.conf

# Include all the user configurations:
Include /etc/apache2/httpd.conf

# Include ports listing
Include /etc/apache2/ports.conf

This is the list of items in mods-enabled directory

root@me:/etc/apache2/mods-enabled# ls
alias.conf       authn_file.load       authz_host.load  autoindex.load  dir.load   mime.load         setenvif.conf  status.load
alias.load       authz_default.load    authz_user.load  cgi.load        env.load   negotiation.conf  setenvif.load
auth_basic.load  authz_groupfile.load  autoindex.conf   dir.conf        mime.conf  negotiation.load  status.conf

Best Answer

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
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