Decrease the size of data, typically to preserve space or reduce network bandwidth required while transmitting files. It can be applied to files, folders, disks, etc.
Questions tagged [compression]
418 questions
5
votes
1 answer
Disable deflate compression in nginx SSL
When I'm browsing to my SSL protected site running nginx with Chrome, I see I'm using TLS 1.0, AES_256_CBC with SHA-1, and DHE_RSA as key exchange. That's all good and in conformance with my cipher suite settings.
However, I'm using DEFLATE…

hvtilborg
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text compression in postfix
I'm having the following arrangement. One server compiling emails in php and another server which run postfix (thus I have network latencies).
Each email is about 300Kb and so as to send an email (using Zend email class) it takes about 0.2s .…

ptigas
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Apache/2.2.20 (Ubuntu 11.10) gzip compression won't work on php pages, content is chunked
I'm running into a problem with a new production server whereto I'm transferring projects. The HTML output of the PHP applications isn't compressed by the Apache mod_deflate module. Other resources, as stylesheet and javascript files, even html…

FamousInteractive
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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 %SystemDrive%\inetpub\temp\IIS Temporary Compressed…

Peter Evjan
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3 answers
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 something like:
./process | zip output.log.zip

bmm
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1 answer
Unzip without path
I would expect the following command to extract the contents of the top directory in the zip file to the destination directory:
unzip file.zip topdir/\* -d destdir
However, what I get is destdir/topdir. What I am looking for is an unzip command…

August Karlstrom
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How to install the dynamic content compression component of IIS (both 6 and 7) non interactively?
Any of the following goes as non interactive for me:
Command line silent installation
Script file
Code (.NET, C, VB, whatever)
Thanks.
EDIT
I'd like to stress, that I wish to install the module responsible for the dynamic content compression. This…

mark
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How to compress files in Windows in batch file?
I can compress files or folders in Windows from GUI by right clicking and selecting "Send to .. Compressed (zip) file..".
Is it possible to do same in batch file?

Harriv
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mod_deflate Supported Encodings for Compression
It seems to me, that mod_deflate in Apache 2.2 will always return:
Content-Encoding: gzip
and never:
Content-Encoding: deflate
It was explained to me, that although there may be a deflate algorithm, mod_deflate is named after a file-format, in which…

sparc
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How to revert the compressed attribute on files in Windows for a whole drive
Someone at my job (a sysadmin) actually performed a "cleanup" task on WinXP which at the same time compressed all the files on my HDD with the Windows compressed file attribute (Filenames get blue in Windows Explorer)
I don't actually need my files…

MaxiWheat
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Unable to compress 18GB file on Ubuntu Linux 18.04
It never happened to me before, but I'm unable to do a simple task such as compressing a 18.5 GB file on Ubuntu Linux 18.04 with any of the popular compressing tools such as gzip, bzip2 and 7z. All of them report a similar warning (not error)…

Claudi
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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 the same servers.
Not sure if it matters but most…

davidcl
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How to install Brotli on nginx and Ubuntu 18.04?
I installed Brotli on Ubuntu 18.04 with Nginx.
Here is the procedure I followed :
$ sudo apt-add-repository ppa:hda-me/nginx-stable
$ sudo apt update
$ sudo apt install brotli nginx nginx-module-brotli
With the tutorial of this blog…

ML61
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Are LTO Hardware compression and encryption standardized?
I'm about to setup a backup using an LTO-4 Drive. I know that drives are meant to be compatible to any tape within the past 3 generations (so I should be able to read an LTO-4 tape using an LTO-4, 5 or 6 drive).
I wonder if this also applies to…

Michael Stum
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Seeking inside file performance under BTRFS with LZO compression
I am planning to use btrfs on a 50 TB RAID6 array and I want to enable lzo compression.
This is for bioinformatics setup where lots of seeking within large (1 TB -- 20 TB) files occur. (The software gets only small chunks of data scattered across…

Met
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