Recent changes to support-requests

modGZIP Varying Browser Support

Anonymous — Wed, 15 Dec 2004 14:41:21 -0000

I have recently discovered that certain versions of IE do
not support modGzip encoded web content.

E.g. IE 5.0 (SP1-3), IE5.5 (SP1) and IE6.0 (no service
packs).

Does anyone have a complete list of supported browsers
and specific issues relating to modGzip on those that
dont?

Also is there anyway of configuring modGzip to get
around these problems?

We have a broad customer base and need to support
IE5.0+.

I am using modGzip under Apache v1.3.
Cheers
Mark

Dechunk doesn't work with Client-Transfer-Encoding

Giuseppe Fortino — Wed, 11 Aug 2004 07:06:08 -0000

mod_gzip stopped compression ColdFusion output when I
upgraded from ColdFusion 4.5.1 to ColdFusion MX 6.1
(the later uses JRun as its engine).

This configuration works A-1:
Apache 1.3.31, mod_gzip 1.3.26.1a, ColdFusion 4.5.1

This one doesn't work with the same ColdFusion files:
Apache 1.3.31, mod_gzip 1.3.26.1a, ColdFusion MX 6.1

They both use the exact same httpd.conf and mime.types
files.

After a couple of hours of searching the web and
testing various Apache/mod_gzip configurations, I
concluded the problem was caused by the
"Client-Transfer-Encoding" header, which prevents
mod_gzip from processing the output. As I understand
it, mod_gzip_dechunk expects to find
"Transfer-Encoding: chunked" and not
"Client-Transfer-Encoding: chunked" in order to removed
the header, agglomerate the chunks and compress the output.

Here are the two traces:
=== response for setup working correctly ===
[ 15] HTTP/1.0 200 OK
[ 17] Connection: close
[ 35] Date: Wed, 11 Aug 2004 06:13:25 GMT
[ 48] Server: Apache/1.3.31 (Win32) mod_gzip/1.3.26.1a
[ 7] Vary: *
[ 22] Content-Encoding: gzip
[ 20] Content-Length: 2458
[ 23] Content-Type: text/html
[ 30] Page-Completion-Status: Normal
[ 30] Page-Completion-Status: Normal
[ 72] Set-Cookie: CFID=220493; expires=Sun, 27-Sep-2037
00:00:00 GMT; path=/;
[ 77] Set-Cookie: CFTOKEN=39897249; expires=Sun,
27-Sep-2037 00:00:00 GMT; path=/;
Client-Date: Wed, 11 Aug 2004 06:14:19 GMT
Client-Response-Num: 1

=== response for setup not compressing outpout ===
[ 15] HTTP/1.0 200 OK
[ 17] Connection: close
[ 35] Date: Wed, 11 Aug 2004 06:51:36 GMT
[ 57] Server: Apache/1.3.31 (Win32) JRun/4.0
mod_gzip/1.3.26.1a
[ 23] Content-Language: en-US
[ 38] Content-Type: text/html; charset=UTF-8
[ 65] Set-Cookie: CFID=221;expires=Fri, 04-Aug-2034
06:51:03 GMT;path=/
[ 73] Set-Cookie: CFTOKEN=55172318;expires=Fri,
04-Aug-2034 06:51:03 GMT;path=/
Client-Date: Wed, 11 Aug 2004 06:51:37 GMT
Client-Response-Num: 1
Client-Transfer-Encoding: chunked

Is there a way to configure mod_gzip to process output
from the second setup correctly, or will this need to
be corrected in the source code for a future release?
Any other alternative I might consider?

Thanks!
Giuseppe Fortino

Calling a function only once when the module get loaded

Anonymous — Wed, 03 Mar 2004 07:27:08 -0000

I want to call my function when the module gets loaded.
I called that fuction from mod_gzip_init, but it is getting
called twice.
Please let me know how can I accomplish this?

how can I log error only ?

Anonymous — Mon, 26 Jan 2004 11:31:09 -0000

Hello, first Id like too thank you for this great module ;-)

Then, I also have a question.
Due to a great usage of my http server (apache 1.3.27)
my log files explodes, they are growing too fast and too
much. So Id like to know how can I decrease those by
keeping only error (mod_gzip error).

Here is my mod_gzip log config :

LogFormat "%h %l %u %t \"%V %r\" %<s %b
mod_gzip: %{mod_gzip_result}n In:%
{mod_gzip_input_size}n -< Out:%
{mod_gzip_output_size}n = %
{mod_gzip_compression_ratio}n pct."
common_with_mod_gzip_info2

CustomLog /var/apache/log/mod_gzip.log
common_with_mod_gzip_info2

Windows: How To ?

Anonymous — Fri, 10 Oct 2003 05:21:22 -0000

OK, im using windows xp, apache 1.3.28 and latest gzip
(i have both the .so and .dll)
How do i install as entering the line LoadModule ....
results in 'cannot load module mod_gzip'
I dont and am not able to get axps for windows (far as i
know) and i cant figure out anyway to do this

I would be very grateful if anyone can help me with the
install, ta

How is the module usable in the context of broken clients?

Markus Elfring — Tue, 05 Aug 2003 10:33:50 -0000

I have read about some problems about the
compression handling by browsers in the
document "http://www.schroepl.net/projekte/mod_gzip/
browser.htm".
I wonder if the modules "gzip" or "deflate" can be used
in this context. How much work and configuration must
be done to work around the known errors?

Using mod_gzip with Apache 2.x? (was: install?)

Anonymous — Thu, 31 Jul 2003 20:22:54 -0000

Can mod_zip be installed on apache 2.0.45&#65311;
Or it just be installed on apache 1.3.26?

Compiling problem: "No rule to make target `mod_gzip.a'"

Artem Ryabov — Mon, 09 Jun 2003 10:16:03 -0000

Can't install.
Static compling:
$ ./configure \ > "--prefix=/opt/apache" \ > --activate-module=src/modules/gzip/mod_gzip.a \ >
Configuring for Apache, Version 1.3.27
+ using installation path layout: Apache (config.layout)
+ activated gzip module (modules/gzip/mod_gzip.a)
Creating Makefile
Creating Configuration.apaci in src
Creating Makefile in src
+ configured for Linux platform
+ setting C compiler to gcc
+ setting C pre-processor to gcc -E
+ checking for system header files
+ adding selected modules
+ using builtin Expat
+ checking sizeof various data types
+ doing sanity check on compiler and options
Creating Makefile in src/support
Creating Makefile in src/regex
Creating Makefile in src/os/unix
Creating Makefile in src/ap
Creating Makefile in src/main
Creating Makefile in src/lib/expat-lite
Creating Makefile in src/modules/standard
Creating Makefile in src/modules/gzip
$ make
===> src
make[1]: Entering directory `/usr/local/src/apache_1.3.
27'
make[2]: Entering directory `/usr/local/src/apache_1.3.
27/src'
===> src/regex
make[3]: Nothing to be done for `all'.
<=== src/regex
===> src/os/unix
make[3]: Nothing to be done for `all'.
<=== src/os/unix
===> src/ap
make[3]: Nothing to be done for `all'.
<=== src/ap
===> src/main
make[3]: Nothing to be done for `all'.
<=== src/main
===> src/lib
===> src/lib/expat-lite
make[4]: Nothing to be done for `all'.
<=== src/lib/expat-lite
<=== src/lib
===> src/modules
===> src/modules/standard
make[4]: Nothing to be done for `all'.
<=== src/modules/standard
===> src/modules/gzip
Makefile:108: warning: overriding commands for target
`libgzip.a'
Makefile:61: warning: ignoring old commands for target
`libgzip.a'
Makefile:132: warning: overriding commands for target `.
c.o'
Makefile:68: warning: ignoring old commands for target `.
c.o'
Makefile:138: warning: overriding commands for target
`clean'
Makefile:75: warning: ignoring old commands for target
`clean'
Makefile:141: warning: overriding commands for target
`distclean'
Makefile:78: warning: ignoring old commands for target
`distclean'
Makefile:147: warning: overriding commands for target
`depend'
Makefile:82: warning: ignoring old commands for target
`depend'
make[4]: *** No rule to make target `mod_gzip.a',
needed by `libgzip.a'. Stop.
make[3]: *** [all] Error 1
make[2]: *** [subdirs] Error 1
make[2]: Leaving directory `/usr/local/src/apache_1.3.
27/src'
make[1]: *** [build-std] Error 2
make[1]: Leaving directory `/usr/local/src/apache_1.3.
27'
make: *** [build] Error 2
$

Memory could not be "read" problem

Anonymous — Thu, 05 Jun 2003 12:17:25 -0000

I've installed mod_gzip 1.3.26.1a on my IBM HTTP server
(apache 1.3.19) running on Win2000 Server.
If I try to get a html page from web server, OS shows
me the message box:
Apache.exe - Application Error
The instruction at "0x1000efad" referenced memory
at "0x00000ee8". The memory could not be "read".

I've try to get previous version of mod_gzip (1.3.19 - is
it problem, that I use apache 1.3.19 and mod_gzip
1.3.26 ???) but on your download section all of the
previous ApacheModuleGzip.dll.zip files pointing to the
same dll file (1.3.26.1a).

Could you help me ?
Thanx a lot

Robert
robert.hlinka@quick.cz

mod_gzip pages not caching!

Anonymous — Thu, 29 May 2003 07:37:28 -0000

I've installed mod_gzip 1.3.26.1a on the server. Ever
since then I've been having the following problems.

1) On Internet Explorer, the web pages do not cache at
all. It's hard to tell on broadband connections, but on
dial up it's horrendous! The pages just don't cache!

2) Also, the images, when I right click to save as, it
shows up as a bitmap image for all images!
Including .jpg, .gif, etc. You can view this at the
following website:

www.tunercarz.com, right click on any of the graphics
and it wants to save as a bitmap, then when you try to
open, says it's not a valid bitmap file.

This is happening will all sites on the server! When I set
the httpd.conf file to exclude mod_gzip, everythign
works perfectly!! Please help!

E-mail me at rob@pc-craft.com