[求助]为apache2添加deflate网页压缩功能

nothing9

环境：Debian Sarge。安装了apache2后，一切正常。现在要添加deflate功能。
激活mod_deflate

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

编辑 deflate.conf
#cat deflate.conf

AddOutputFilterByType DEFLATE text/html text/plain text/xml
DeflateFilterNote Input input_info
DeflateFilterNote Output output_info
DeflateFilterNote Ratio ratio_info
LogFormat '"%r" %{output_info}n/%{input_info}n (%{ratio_info}n%%)' deflate
CustomLog /var/log/apache2/deflate_log deflate

重启apache2服务

/etc/init.d/apache2 restart

问题：当我访问了某html静态网页后，deflate_log 并没有任何记录。我的配置有问题吗？如何改正？