Archives

Browse ftp archive snapshots from one of the following archives:

Packages

source packages:

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binary packages:

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Miscellaneous

snapshot.debian.org

The snapshot archive is a wayback machine that allows access to old packages based on dates and version numbers. It consists of all past and current packages the Debian archive provides.

The ability to install packages and view source code from any given date can be very helpful to developers and users. It provides a valuable resource for tracking down when regressions were introduced, or for providing a specific environment that a particular application may require to run. The snapshot archive is accessible like any normal apt repository, allowing it to be easily used by all.

The Debian Project would like to thank the Wellcome Trust Sanger Institute and LeaseWeb Netherlands B.V. for providing hardware and hosting. We would also like to thank the Electrical and Computer Engineering department at the University of British Columbia, Canada and Nordic Gaming for providing hardware/hosting and hardware, respectively, in the past.

Usage

In order to browse snapshots of the archives kept on snapshot.debian.org, simply follow the links on the top left. They will lead you to a list of months for which data was imported, and the list entries in turn will point you to all timestamps of a given month's snapshots.

For example, /archive/debian/ shows that we have imports for the main Debian archive, http://ftp.debian.org/debian/, from 2005 until the present. Picking October of 2009, /archive/debian/?year=2009;month=10, provides us with a list of many different states of the debian archive, roughly spaced 6 hours apart (the update frequency of ftp.debian.org at that time). Following any of these links, say /archive/debian/20091004T111800Z/, shows how ftp.debian.org/debian looked on the 4th of October 2009 at around 11:18 UTC.

If you want to add a specific date's archive to your apt sources.list simply add an entry like these:

deb     http://snapshot.debian.org/archive/debian/20091004T111800Z/ lenny main
deb-src http://snapshot.debian.org/archive/debian/20091004T111800Z/ lenny main
deb     http://snapshot.debian.org/archive/debian-security/20091004T121501Z/ lenny/updates main
deb-src http://snapshot.debian.org/archive/debian-security/20091004T121501Z/ lenny/updates main

To learn which snapshots exist, i.e. which date strings are valid, simply browse the list as mentioned above. Valid date formats are yyyymmddThhmmssZ or simply yyyymmdd. If there is no import at the exact time you specified you will get the latest available timestamp which is before the time you specified.

It may be necessary to ignore the Valid-Until header within Release files, in order to prevent apt from disregarding snapshot entries ("Release file expired"). Use aptitude -o Acquire::Check-Valid-Until=false update or apt-get -o Acquire::Check-Valid-Until=false update for this purpose.

If you want anything related to a specific package simply enter the source package name in the form, or find it in the package index.

News

2014-06-01

We added a cluster of machines generously provided by LeaseWeb to provide the snapshot.debian.org service.

Snapshot used to run on two machines hosted at and provided by the Wellcome Trust Sanger Institute and by the Electrical and Computer Engineering department at the University of British Columbia, Canada. A few months ago, the machine at UBC, named stabile.debian.org, started to die. Since it was approaching its storage capacity limits anyway, we began looking for a new second home for snapshot, and LeaseWeb offered! Providing snapshot from two different places (now Sanger and LeaseWeb) allows us to survive temporary and not-so-temporary issues that affect any single site.

Currently, snapshot consists of 24 terabytes of data in about 15 million files, and it appears to be growing at a rate of approximately 5 terabytes a year (or about 10 megabytes per minute).

2012-09-23

Just a quick datapoint: Currently snapshot has about 11 million files in a bit over 16 terabytes of data.

2010-12-14

Around 2010-11-20 the server which hosted snapshot-master stumbled into hardware issues. This did not affect the external storage but only the front-end server. Since the master was down no new data was imported into the snapshot system and the remaining mirror kept presenting its data as of the 20th.

Fortunately the people at the Wellcome Trust Sanger Institute, which hosts snapshot-master, have been able to give us a replacement machine quite quickly. Thanks!

While the master was down, snapshot information was collected by a non-public backup system. This data has been integrated into snapshot.debian.org. Unfortunately, one of the package pools, debian-ports, was not archived on that secondary system, and for this archive we have no data in the affected time period.

2010-09-07

Renamed the backports.org archive to debian-backports as it has now moved to debian.org infrastructure. A rewrite rule has been put in place so old URLs should continue to work (at least for HTTP clients that know how to follow HTTP redirects).

2010-08-16

Set up a caching proxy in front of the two snapshot webservers. This will help in cases where an entire organisation uses various apt sources.list entries on a lot of their machines.

Usually such entities would use proxy caches like squid and then there is no problem, assuming the cache works correctly. Unfortunately apt-cacher, apparently a common choice which is supposed to be smarter for debian archives, completely ignores the Cache-Control headers that snapshot sends and hits this service for all requests made to anything under dist/. A single apt-get update can cause up to a few dozen of such requests and when multiplied by scores of machines - all running the update at the same time - this caused the snapshot backend to run into limits. Now such requests won't hit the backend any more.

2010-04-12

Publicly announce the snapshot.debian.org service. Yay.


For older entries see the older news page.

Application Developed by Peter Palfrader — Web/Graphics designed by Bernhard Weitzhofer
Source code available for download via git and browseable online via gitweb.
Please report bugs against the snapshot.debian.org package.
Built at 2014-11-24 00:26:47.022558 on sibelius .
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