[Mod_gzip] gzip vs deflate on Apache

[Stephen Pierzchala]

Lance:

mod_gzip and mod_deflate are very different modules that do the same 
thing in Apache 2. I would recommend going with mod_deflate.

mod_deflate actually provided GZIP-encoded content, despite it's name. 
It is native to Apache 2.0.x and must be compiled in to work. mod_gzip 
for Apache 2.0.x is available, and does have more configuration options 
for logging, etc., but, as far as I can tell, is not being actively 
supported; Michael may be better able to describe how active the 
mod_gzip development team has been lately.

You can get more details in some papers/articles I wrote at 
http://www.webcompression.org and http://www.webperformance.org.

Stephen Pierzchala
PerformanceCorps


Lance Morrison wrote:

> Hello
>
> I'm trying to get some clarification about gzip vs deflate on Apache. 
> We have a network device that will handle the gzip or deflate 
> compression methods.  If I send in a GET request with
>
>     Accept-Encoding: gzip
>
> I get back a compressed response with:
>
>     server: Apache/2.0.46,(Unix),mod_gzip/2.0.26.1a
>
> However, if I specify "deflate" I don't get back a compressed response.
>  My httpd.conf file contains:
>
>     SetOutputFilter DEFLATE
>
> The mod_gzip params in the file don't seem to have any affect though 
> they are recoginized.
>
> Can someone tell me how this all fits together!  We sould like Apache 
> to be able to compress with both algorithms for our testing.
>
> Many thanks in advance.
>
> Lance Morrison
>
>
>
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