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Questions tagged [compression]

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.

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Force Apache HTTP compression event if no Accept-Encoding header was sent?

I have a client that sends requests to an apache server (note that the client is not a Web browser and the response is not a Web page). I would like to compress the output (probably with gzip), but I cannot modify the client to send a…
gou1
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gzip compression increases performance, then eventually increases response time from server

Here is my current server scenario. I'm running on a Rackspace Cloud instance (16GB of RAM), using cPanel/WHM on a CentOS 5.5 install. I'm currently running about 10 Magento sites, all varying in size (from medium size to small) Over time I noticed…
Axel
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Random files are compressed on the disk

I am now managing Windows Server 2003 originally setup by someone else. What I noticed is that even though file compression is not turned on at the drive level (when I go to drive Properties "Compress drive to save disk space" is unchecked) a lot of…
Joe Schmoe
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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 files setup correctly (i think). How can I…
Kirk Strobeck
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nginx is not compressing response by default when acting as a reverse proxy

I have nginx sitting on port 80, redirecting requests to a play framework server as described by deployment docs. I have verified that the server by default does not compress by doing the steps provided by zoul in this question. However as in the…
Nasir
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Wanted: Unix zip command-line program with zip64 support

Is there a Unix command-line program that implements ZIP with ZIP64 support? The standard zip program won't ZIP files bigger than 2**32 bytes. I don't want to use .tar.gz format, because with ZIP I can access the files without decompressing the…
vy32
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Can and should AppHostOnly be changed for IIS7?

A post by a Microsoft supporter on this Microsoft website states that you can't override noCompressionForHttp10 in the web.config file. Can the httpCompression section be changed from "AppHostOnly" to "Everywhere" so that you could do this? Is this…
Anthony
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Backup Exec has lost compression ability

We are running Backup Exec 11d (Version 11.0 Rev 6235) The server is hooked up to an HP Ultrium 440 tape drive. It has been performing very well for a few years now, it has processed about 3-400 TB. Suddenly compression stopped working. So we…
Peter Lindqvist
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Is it a good idea to compress a MS SQL database backup?

Quick question! I heard that we should never shrink our databases. However, does the same rules apply to compressing our SQL backup? Thanks
user1034912
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how nginx serves large files

We have a problem with loading a pdf file which is about 300KB size on our web page. The pdf is being served by nginx. Whenever I load the file, it shows an error saying Failed to open pdf document, but the size of the crashed file is only 32KB. I…
Nava
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Disk cloning using dd thru gzip - how effective is it?

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 from dd thru gzip really is. (Some data simply…
thinice
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How can I disable compression for specific user agents in IIS6?

I'm seeing some problems with IE6 (pre SP2) that seem to be related to http compression. I'd like to disable http compression just for those users. Any suggestions? Something along the lines of this might work (but for IIS, not Apache).
Michael Haren
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Serve pre-compressed html files using apache2, functionality equivalent to mod_gunzip

Is there a way to implement mod_gunzip's functionality using apache filters? Store gzipped files on the server, hand out compressed data to the browsers that can cope with it and uncompress it for browsers which cannot. I'm thinking of moving my…
freethinker
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IIS7 Windows Server 2008 Add Roles Stalls

I'm trying to install Dynamic Content Compression on IIS 7 on Windows Server 2008 SP2. Tried going to Server Management -> Roles -> Add Role -> Check Dynamic Content Compression. Click next and it just says "Initializing installation ..." And it's…
ysrb
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Batch file problems

I have created a batch file to copy and zip up an entire drive of data on my server. I have selected the D:\ drive to be copied and zipped. However, I have one problem. When I run the batch file, only certain files from the D:\ drive are being…
GMitch
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