Questions tagged [gzip]

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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gzip not working on nginx for JSON responses

I'm trying to figure out why my JSON responses are not being gzip'ed. In my main ngninx.conf, I have: gzip on; gzip_vary on; gzip_proxied any; gzip_comp_level 6; gzip_buffers 16 8k; gzip_http_version ...
Andrew Newby's user avatar
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1 answer
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Disable brotli compression for single nginx vhost

I have a handful of websites on a single server, setup using https://serverpilot.io/ It enables brotli compression for all sites by default but I would like to disable this on a single site that sits ...
Titan's user avatar
  • 143
2 votes
1 answer
2k views

Is it worth it to have gzip_static enabled with HTTP/2?

On a static website I precompress pages to .gz files with maximal compression level and serve them using gzip_static on;. I also have HTTP/2 enabled. My question is whether these things go well ...
Harmen's user avatar
  • 167
44 votes
5 answers
25k views

bzip2 too slow. Multiple cores are avaible

I am running this command: pg_dumpall | bzip2 > cluster-$(date --iso).sql.bz2 It takes too long. I look at the processes with top. The bzip2 process takes about 95% and postgres 5% of one core. ...
guettli's user avatar
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1 vote
0 answers
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AWS beanstalk: Why settings reset when beanstalk servers are restarted, however WAR deployement work fine with the changes

After lots of struggles, I identified how to enable gzip compression on my aws beanstalk Java-tomcat environment In war file I have instructions to overwrite this file which have few added file types ...
PHP Avenger's user avatar
3 votes
5 answers
387 views

Zipping a folder to create tgz file

I have a folder which i want to create tgz file and compute its sha256: The folder is converted to tgz using following command "tar -c -C #{Shellwords.escape dir} #{Shellwords.escape basename} " \ ...
user93796's user avatar
0 votes
1 answer
1k views

Chrome HTTP2 requests do not finish for large gzipped files (Apache)

I recently upgraded Aapche to 2.4.26 (ondrej ppa) on Ubuntu 16.04. By default, modules deflate and http2 are enabled. On Chrome, when serving large JS files, the request simply does not finish and ...
light's user avatar
  • 113
0 votes
2 answers
966 views

Apache Webserver: check if decompression is supported

With SetInputFilter DEFLATE I can force the apache to decompress incoming messages. Is there a way to ask the webserver whether it supports decompression of incoming requests. I would expect a ...
jsalvas's user avatar
1 vote
2 answers
3k views

What steps are necessary to enable support for Content-Encoding: gzip POST bodies to an ASP.NET application hosted in IIS 8.5

Sending Accept-Encoding: gzip to my server currently upgrades the server responses with gz compression. Sending Content-Encoding: gzip POST bodies to my server does not result in my application ...
K. Alan Bates's user avatar
2 votes
2 answers
2k views

Is there any way to detect an incoming ZipBomb?

I'm building an ASP.NET application deployed to IIS and I am actively working on following the necessary steps to enable support for Content-Encoding: gzip There are no current plans for the server ...
K. Alan Bates's user avatar
0 votes
1 answer
2k views

memory use during MySQL gzip backups

Hi on an EC2 server I'm using the following to gzip SQL from another server: mysqldump -h $HOST -u $UNAME -p$PWORD --single-transaction $1 | gzip -5 > $2_`date +%d`.sql.gz At the moment the SQL ...
Luke Wenke's user avatar
0 votes
3 answers
9k views

How to split a large .tar.gz on a Windows machine to upload on a Linux server?

I downloaded a rather large (6GB) backup file from a cloud Linux server about a week ago before it went down to my Windows laptop. We just got ourselves a new cloud server just now and the decision ...
fortesama's user avatar
0 votes
1 answer
631 views

IIS Formal Brotli compression module

Is there any formal extension for IIS to support brotli compression? Previously I saw these two extension but I cannot rely on them for a production server: https://www.iis.net/downloads/community/...
Mahmoud Moravej's user avatar
2 votes
2 answers
9k views

Backup and Restore Using dd and gzip

I've seen various posts discussing the use of dd for creating an image of a drive and only storing 'used data'. Before posing the problem/question, let's assume a few things. Assumptions The drive ...
Betty Von Schmartenhausen's user avatar
2 votes
0 answers
149 views

iis doesnt compress content only for requests containing "/gecko/" in user-agent

Very weird behavior. My server returns gzipped response for all other requests. in the images you could see that for user agent "/gecko/" the request is not gzipped and for "/gescko/" it is. i'm ...
Yuval Perelman's user avatar
0 votes
2 answers
1k views

Large mysql dump pipe to s3

Is there any problem in doing this with lots of data? mysqldump ... | gzip | s3cmd put - s3://bucket/file.sql.gz The MySQL dump is about 100GB in size. What happens if gzip or s3cmd can't process ...
John W. Nesk's user avatar
3 votes
4 answers
12k views

Enabling Brotli compression on IIS

My team us currently trying to install Brotli compression on a VPS: Windows Server 2012 R2 with IIS8.5 using the 64bit module that can be downloaded here: https://www.iispeed.com/pagespeed/products/...
Adam's user avatar
  • 287
7 votes
2 answers
4k views

nginx gzip Vary header together with existing Vary headers

I'm trying to active gzip compression and I have set the option gzip_vary on; to include the Vary: Accept-Encoding header. The problem is, my application is already seting a Vary: header. So the ...
Dennis C.'s user avatar
1 vote
0 answers
118 views

Apache 2.4.23: gzip for HTTP 503

Can Apache be instructed to gzip the contents of an HTTP 503 response? A page of a website that I manage needs to be temporarily removed. Not only does HTTP 503 aptly describe the situation but it ...
Jmweb's user avatar
  • 11
2 votes
3 answers
19k views

Nginx Gzip Not Working

As the title said, Nginx Gzip is not working, I have tried many configurations scattered on the internet none have worked, I'm really frustrated when simple things don't work. gzip.conf: gzip on; ...
John Pangilinan's user avatar
0 votes
0 answers
472 views

Why is nginx gziping tar.gz archives?

I have the following gzip configuration at the nginx.conf file: gzip on; gzip_disable "msie6"; gzip_vary on; gzip_proxied any; gzip_comp_level 6; gzip_buffers 16 8k; ...
user avatar
0 votes
1 answer
145 views

Testing gzip for users accessing website via forward proxy

An app of mine has nginx as a webserver, and I'm using gzip compression. I've checked gzip integrity via https://checkgzipcompression.com/ - it seems to be working A OK. However, a lot of my users ...
Hassan Baig's user avatar
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3 votes
2 answers
4k views

Nginx not sending gzipped assets when passing trough a load balancer

I have a nginx server acting as load balancer, which delegates requests to other application servers. When I try to request a asset directly to the application server, the asset is served in it's ...
Iván Guillén's user avatar
0 votes
1 answer
6k views

Enforcing No Gzip on Nginx

I need to disable gzip in some cases, regardless of client's Accept-* request headers. My Nginx's conf entry has the following directives: gzip off; more_clear_input_headers -t 'text/html' Accept ...
Tzury Bar Yochay's user avatar
2 votes
2 answers
1k views

Is there such thing as unzip cache?

On my server I have the script that runs (using a cronjob) every midnight and downloads a zip which contains a csv file from an url. The csv file is updated daily. Following is my (simple) script: #!/...
sica07's user avatar
  • 105
1 vote
2 answers
2k views

Enable compression for HTTP2 server-pushes on an apache server

If I enable H2 for my apache server and specify a preloaded link header on a HTML Dokument, the server performs a H2 server-push because it parses the Link header -- so far so good. The problem is ...
Moritz's user avatar
  • 238
0 votes
2 answers
2k views

Turn on Gzip for combined JS or CSS files without file extension

I'm trying to configure GZip on my nginx server. It works for files with an file-extension. To make a decision what kind of file is served over the network, Nginx does not analyze the file contents ...
stUrb's user avatar
  • 165
0 votes
1 answer
837 views

how to stop esxtop gracefully which is running in batch mode?

I am running esxtop in batch mode using the below command: esxtop –b –a –d 10 –n 2000| gzip -9c > perfData.csv.gz This is going to run for a little over 5 hrs, but I want to stop it gracefully ...
rkrishnan's user avatar
  • 101
3 votes
1 answer
2k views

Apache returns invalid Content-Length for gzip compressed 204 response

When apache returns a gzip compressed response with 204 response code and empty body server returns invalid header Content-Length: 20 instead of Content-Length: 0. Without gzip compression (without ...
Dmitry Gres's user avatar
1 vote
1 answer
2k views

gzip piped output into ssh command

I make backup over ssh like this: mysqldump -u dbuser -pXXXXXXXX dbname | ssh -i ~/.ssh/id_rsa_backup [email protected] 'cat > /var/backups/services/my_service/db/$(date +"%Y-%m-%d").sql' How ...
bux's user avatar
  • 636
0 votes
0 answers
869 views

gzip: FILE is a multi-part gzip file -- not supported

I am trying to restore some deleted files from one server. Using several tools for raw disk scan, I found lots of files - gz, gif, jpg etc. I also found some multi-part gzip files that I do not know ...
Nick's user avatar
  • 862
5 votes
2 answers
3k views

nginx : enabling gzip compression based on hostname

I have a single machine running nginx serving http traffic for multiple domains(using same Lua codebase). For some of the domains I would like to enable gzip compression. Is it possible to enable gzip ...
simplfuzz's user avatar
  • 279
0 votes
0 answers
272 views

How do you git archive a branch using gzip with highest compression level?

I'm trying to git archive a branch using gzip with the highest level compression (9) but it seems to not compress at that level. Here is my command: git -C /home/user/example.com/ archive --format ...
Daniel Harris's user avatar
33 votes
3 answers
93k views

How to zip files with a size limit?

I have a script that zip files from a folder. I want to make sure that the zipped file is not more than 10 MB. If the size is more than 10MB, it should create another ZIP file. Is there any command (...
Vishnu's user avatar
  • 741
3 votes
4 answers
6k views

mysqldump to remote mysql database using gzip

I'm trying to transfer data from one MySQL server to another with gzip compression. What I have so far is: mysqldump -u [user] -p[pwd] --no-create-db --no-create-info [db] [table] | gzip -c | mysql -...
user3571061's user avatar
3 votes
1 answer
2k views

Tomcat/https: I can see compression is enabled, but file sizes are the same as without compression

I have enabled compression on Tomcat running on my machine. The https response header is showing compression is enabled, but the same amount of data is being transferred with and without compression ...
Clayton Lovatto's user avatar
0 votes
1 answer
125 views

Linux CLI Make a Tar.Gz with Tar.Gz First-level Directories

Currently, I use this command to make tar.gz archives: sudo tar -zcpvf archive.tar.gz directory1 directory2 directory3 Is there a way to compress multiple archives like above, but instead of ...
GTS Joe's user avatar
  • 199
-2 votes
1 answer
322 views

What are the downsides of http compression?

I always was aware that http supports gzip compression, but never cared about it. I counted on that the servers and shared hosts I use would have activated it by default (I'm more of a frontend ...
johjoh's user avatar
  • 111
3 votes
2 answers
989 views

Is it possible to compress the cached files of nginx fastcgi_cache

Is is possible to compress/gzip the cached files managed via nginx fastcgi_cache? I am thinking of saving two versions of cached files (normal & compressed) and use appropriate key structure to ...
firex's user avatar
  • 83
2 votes
1 answer
2k views

Nginx: Conditional request gunzip when `Content-Encoding: gzip` is set

How would it be possible in nginx to evaluate if the Content-Encoding: gzip request header is set (coming from a web client to nginx), and then let nginx gunzip the request before it gets forwarded to ...
derFunk's user avatar
  • 129
6 votes
2 answers
1k views

Error with gunzip during logrotate

I'm using logrotate to rotate my Symfony2 logs on my webserver. Everything works fine, but I wanted the old logs to be sent to me by emails. So, I added some line in my logrotate conf file as you can ...
Gary Olsson's user avatar
0 votes
2 answers
3k views

nginx gzip_static removes Content-Encoding header

My http block defines various gzip rules. Then in where I have pre-comporessed gzip files I’m using the gzip_static module. i.e. something like: http { gzip on; #... server { #...
Jonny Barnes's user avatar
3 votes
1 answer
870 views

phpMyAdmin export, half file compressed?

Okay, I have to admit, that I derped up. I've exported a database from a to-be-reinstalled server and didn't check that file. Now, that I try to import it, I've discovered something very strange, the ...
Enbyted's user avatar
  • 33
0 votes
1 answer
551 views

Compressing and streaming files from a linux server

I have a linux server with a lot of unused files, but it is low on disk space. I'd like to take a copy of the files before deleting them. There is not enough disk space to store the compressed version ...
NoChecksum's user avatar
2 votes
0 answers
118 views

How to enable static GZip compression for versioned "/style.css?v=1" resourcess in IIS?

Google PageSpeed reports that files like .css and .js are compressed, but .css?v=1 and .js?v=1 are not. How to enable static compression for files that have a dynamically changing version number in ...
Slava's user avatar
  • 201
-2 votes
1 answer
176 views

./configure doesn't work while installing mod_gzip

I tried to install and enable mod_gzip on apache server and downloaded mod_gzip from http://sourceforge.net/projects/mod-gzip/files/ When i try to install and type ./configure, i get ./configure: No ...
Utku Dalmaz's user avatar
  • 1,359
1 vote
1 answer
469 views

Can't get included CSS and JS files to be compressed

I have enabled compression via .htaccess and in httpd.conf However when I run it through the various online testers, its always saying that various included files are not compressed. Apache version ...
cosmicsafari's user avatar
0 votes
4 answers
3k views

How to upgrade gzip from 1.3.12 to 1.6 on CentOS 6

I want to use gzip -k from now on, but it is only available with newer gzip versions. How can I upgrade it on CentOS 6?
Buttle Butkus's user avatar
0 votes
0 answers
651 views

IIS 7.5 successfully compresses but sends uncompressed version in response

I have IIS 7.5 setup to use gzip compression on both static and dynamic content. By inspecting the "IIS Temporary Compressed Files" folder, I have verified that it is indeed compressing all of the ...
David Schaffer's user avatar
0 votes
1 answer
313 views

How to echo line out of gzip compressed file?

While importing a mysqldump into a Galera cluster get an error message refering to duplicate error, referencing a line. How do I echo out the particilar line in order to check the source table? ...
merlin's user avatar
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