Gzip is any of several software applications used for file compression and decompression. The term usually refers to the GNU Project's implementation, "gzip" standing for GNU zip. It is based on the DEFLATE algorithm, which is a combination of Lempel-Ziv (LZ77) and Huffman coding.

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How to disable Gzip compression by PHP script on FastCGI

We used this PHP code to disable gzip compression for specific scripts @apache_setenv('no-gzip', 1); But our admin migrated to FastCGI and this does not work anymore. How to do it? Thanks
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1answer
710 views

Apache serving empty gzip with assets produced by Rails Asset Pipeline

I followed the steps described in the blogpost The Asset Pipeline, from development to production and tweaked them to my environment. The two important files are: ...
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1answer
498 views

How to unpack specific directory from /home backup packed with pigz+tar+gzip

Normally I'm extracting my copies with: pigz -dc backup2_week1_system.tar.gz | tar xzvf - Now I want to unpack specific directory from /home/user for example admin
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4answers
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rsync to compressed archive of file

I take backups of a server with rsync, but those backups are quite large, and I'd like to compress them. Is there a way to have some sort of wrapper around rsync to gunzip the file in the backup, ...
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3answers
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tar gzip slowing down server

I have a backup script that: compress some files generate md5 copy the compressed file to another server. the other server finishes comparing MD5 (to find copy errors). Here it's the core script: ...
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2answers
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gzip “No space left on device”

Using gzip 1.3.12 / ubuntu 64bit I am getting "No space left on device" yet there appears to be plenty of disk space remaining. gunzip 03-05-2012--22-52-01.tar.gz gzip: 03-05-2012--22-52-01.tar: No ...
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1answer
141 views

Does PS3 browser handle gzipping? [closed]

Not sure if this would be a correct place to post, but here it goes. I've been getting reports form people who try accessing my site from a PS3, that every page appears like a jumble of random ...
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2answers
713 views

Using AddEncoding x-gzip .gz without actual files

With Apache (2.2 and later) how can I achieve the following. I want to transparently compress using GZip encoding (not plain Deflate) the output when a certain file is queried with its name plus the ...
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7answers
8k views

Compressing and copying large files on Windows Server?

I've been having a hard time copying large database backups from the database server to a test box at another site. I'm open to any ideas that would help me get this database moved without having to ...
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3answers
947 views

gzip compression good or bad?

I have a server that currently does a lot of processing in my application and the target users are those who have a very good internet connection. The output that is sent from the server is always ...
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1answer
1k views

NGINX + GZIP - Altering Vary header to include User-Agent

Currently, when nginx is set to gzip outbound content as requested by the client, the "gzip_vary on" setting will set the following header: Vary: Accept-Encoding We would like to modify this to ...
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2answers
325 views

I cant get mod_gzip to function properly

The pagespeed tool says Compressing http://72.10.33.203/workspace/js/plugins.min.js could save 95.0KiB (66% reduction). but when I test for GZIP it shows that it works. I have my htaccess and conf ...
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2answers
470 views

Apache 2.2 serving .html.gz content

How can I get Apache 2.2 on Centos to serve static .html.gz files from local disk to browsers, without them being prompted to download the file (ie - I want it rendered normally in the browser)?
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2answers
1k views

nginx + php-fpm + apc … compression?

I have a VPS running nginx 1.1.19, php-fpm 5.3.10, and APC 3.1.9. The server is primarily running PHP scripts (vB, SMF, IPB) I'm also using Cloudflare as a CDN if that matters. From what I can tell, ...
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2answers
107 views

Should I serve compressed PDFs?

I'd like to know if there's a general rule of thumb wheter to enable gzipping for PDF files or not. I use NGINX but I think this would be helpful for Apache users as well. Thanks.
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1answer
559 views

Apache LocationMatch throws 500 and AddOutputFilterByType does nothing

I need to add below directives to apache. But I get 500 when I add these lines. <LocationMatch "^/assets/.*$"> Header unset ETag FileETag None # RFC says only cache for 1 year ExpiresActive On ...
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votes
2answers
10k views

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

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: ...
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3answers
884 views

How to pre gzip static JS

my site is running IPB 3.1.4 and I want to pre-compress my .js files. I have ssh root access and need the command to gzip the js directory and the code for htaccess. My htaccess: Options -Indexes ...
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1answer
401 views

Is html or php header needed for gzip?

I use gzip module of nginx to compress documents. When gzip is enabled nginx will automatically send content-ending of gzip with HTTP headers, right? Without adding any PHP header header() or HTML ...
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1answer
2k views

How do I server pre-gzipped files with nginx so that they'll be shown as text in the browser?

I have a bunch of gzipped log files I'd like to serve with nginx. I want them to served in such a way that they're automatically inflated by the browser. I assume that means I need nginx to send the ...
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2answers
3k views

Why is IIS7 not compressing my static files?

I am trying to get IIS to compress jquery.js (and all other static files, but using jquery as the example here) on my localhost, but something goes wrong. The funny part is that when I look in my ...
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votes
2answers
848 views

Gzip mistake with directory

I accidently gzip -rv directory and now all individual files is in .gz format. How do I undo this and gunzip all .gz files within the directory? And how do I just gzip this whole directory? I tried ...
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4answers
676 views

How do I most efficiently store and serve 1,000,000+ small gziped files on a Linux web server?

I have large static content that I have to deliver via a Linux-based webserver. It is a set of over one million small, gzip files. 90% of the files are less than 1K and the remaining files are at most ...
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4answers
10k views

how to enable iis 7 dynamic content compression?

I've turned on dynamic content compression in IIS 7, but Fiddler is showing that my dynamic pages are still being served without content-encoding: gzip. Static content compression is working fine on ...
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votes
2answers
918 views

How to zip the standard output of a process?

I have a process that is producing a big amount of log to the standard output in a short period of time. Is there a way to zip the standard output of my process to a file. I am searching for ...
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votes
1answer
158 views

Repeated unsuccessful gzip compression of my website's files

The site in question is goinnativerecords.com I've got a basic shared hosting account and my website is a little heavy on the javascript so I decided to compress with gzip. Contacted my hosting, ...
2
votes
1answer
166 views

Apache send HTML without comments

I have a problem with my Apache Webserver, I got 2 environments: Development and Production. Both have the same configuration, but the first one sends the HTMLs exactly as they've been created, the ...
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1answer
915 views

Gzip pre-compression

I'm using mod_deflate to compress my .css and .js files on the fly: <ifmodule mod_deflate.c> AddOutputFilterByType DEFLATE text/text text/html text/plain text/xml text/css ...
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2answers
388 views

Disk cloning using dd thru gzip - how effective is it? [closed]

Is gzip or gzip -9 for a disk clone worth the extra time that it takes to perform the compression? Does it yield a significant saving? There is very little information on how effective piping data ...
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votes
1answer
361 views

IIS7 compression failing with “COMPRESSION_DISABLED” despite having the option enabled

I have been unable to get GZIP compression working on my IIS7.5 server. I have tried all the suggestions online, including here at ServerFault and no matter what, the trace always comes back stating ...
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2answers
219 views

Apache isn't deflating my website home page

I have the following 3 rules at /.htaccess AddOutputFilterByType DEFLATE text/html text/plain text/css application/json AddOutputFilterByType DEFLATE text/javascript application/javascript ...
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1answer
116 views

Enabling gzip compression in apache2 web server

I am trying to enable the zgip compression in apache2 web server, a quick googling helped me to fetch some instructions and I got to know that I need to edit httpd.conf which is inside /etc/apache2/ ...
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3answers
2k views

zip does not work for big files

What is the best way to compress a file if it is more than 4 GB in size? I am using the following for last several months. mysqldump --all-databases | zip > mybackup.zip Today I am got an ...
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votes
1answer
885 views

Grade F on Compress but gzip is running

i got a litte problem with gzip YSlow says: Grade F on Compress components with gzip There are 5 plain text components that should be sent compressed Page Speed says: Enable ...
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vote
1answer
539 views

Why does tar -c dir | pigz > /mnt/nfs/dir.tgz use network, then cpu in cycles instead of both at once (with one bottlenecking)

I want to transfer a multi-terabyte directory to an nfs mounted directory most efficiently over a 1Gbit network (probably the limiting factor) 3 options - tar and compress in place, then copy copy, ...
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votes
4answers
11k views

Need help with some IIS7 web.config compression settings

I'm trying to configure my IIS7 compression settings in my web.config file. I'm trying to enable HTTP 1.0 requests to be gzip. MSDN has all the info about it here. Is it possible to have this config ...
5
votes
3answers
10k views

How to use GZip to create a .zip file

Is it possible to use GZip to create a .zip file? I've been Googling and can't find anything that leads me to believe this is possible
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2answers
491 views

`mod_deflate` is returning `Content-Encoding: gzip`. Is that normal?

mod_deflate is configured on my Apache 2.2 web server. But my response headers are showing gzip as the Content-Encoding instead of deflate: HTTP/1.1 200 OK Date: Mon, 26 Sep 2011 22:26:11 GMT ...
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2answers
435 views

CRC Failed, File is broken, using php system command to tar a directory

Can anybody see a problem with the below PHP code? Or have any ideas to troubleshoot a solution as to why whenever I download the backup file.tar.gz and try to open it using 7zip on windows... that I ...
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votes
2answers
604 views

IIS6 wont compress js and css

So recently I configured IIS6 to compress files I now have most files compressing apart from my JavaScript and CSS files. Does anyone have an idea what maybe causing them not to be compressed. I know ...
4
votes
5answers
4k views

Enabling gzip compression in IIS and having it take effect

We've enabled Gzip compression on the server in IIS (IIS6). We've run iisreset. It just doesn't want to take effect. We had this before on another server, and after a little while, it just started ...
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2answers
344 views

What reasons (if any) are there to *not* enable gzip compression for your web server?

Specifically I am working with IIS7, in case there are platform specific reasons, but I am curious in general. I know gzip compression is more CPU intensive for both the server and the client, but it ...
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vote
4answers
7k views

how to copy & gzip files individually over ssh

I'd like to transfer a directory with uncompressed files over using ssh, gzip'ing them individually along the way. Can anyone recommend a simple oneliner to achieve this? eg. fileA.ext -> ssh/pipe ...
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vote
1answer
1k views

Turn off gzip compression for one virtual host

I'm running into a problem where I think PHP deprecation errors are causing the headers to be malformed, causing a 330 error. If I disable error reporting for E_DEPRECATION, the error disappears, so ...
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votes
3answers
142 views

Uncompressing gzip file

I have compressed a folder using following command: tar czvf arch.tar.gz dirname/ When I try to uncompress it using following command tar xvfz arch.tar.gz then it uncompress folder but contents ...
7
votes
1answer
525 views

Apache deflates .xml.gz files

I noticed an error in google webmaster tools regarding a gzipped version of a sitemap. Turns out the sitemap.xml.gz file is gzipped twice: one upon creation (as it should be) and another time when ...
2
votes
2answers
13k views

gunzip: invalid compressed data--format violated

Problem definition: I transferred a tar.gz file from a Linux machine to a Windows partition.The Windows partition has mounted with the Linux server as cifs. OS : Red Hat Enterprise Linux Server ...
6
votes
1answer
11k views

How can I enable GZIP compression in Jetty?

I have a Jetty server which does not have compression enabled (I tested this here). How can I enable compression?
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vote
1answer
525 views

making apache serve unzipped content from zipped files

I need to serve a bunch of gzipped MIDI files from an Apache server. The catch is that when the user requests them, the response should come back with a "audio/midi" content-type header and not a gzip ...
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votes
1answer
3k views

Unable to decompress a .gz file on centos. gunzip: filename.tar.gz: not in gzip format

I am trying to install the latest apache ant to centos. I did as follows: wget http://ant.apache.org/bindownload.cgi/apache-ant-1.8.2-bin.tar.gz gzip -d apache-ant-1.8.2-bin.tar.gz and I get the ...