Browse ftp archive snapshots from one of the following archives:
source packages:Search in the index of source packages:
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.
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.
If you want to add a specific date's archive to your apt
deb https://snapshot.debian.org/archive/debian/20091004T111800Z/ lenny main deb-src https://snapshot.debian.org/archive/debian/20091004T111800Z/ lenny main deb https://snapshot.debian.org/archive/debian-security/20091004T121501Z/ lenny/updates main deb-src https://snapshot.debian.org/archive/debian-security/20091004T121501Z/ lenny/updates main
To access snapshots using https, you need to install the ca-certificates
package; with apt version earlier than 1.5~alpha1 you also need to install
the apt-transport-https package.
To learn which snapshots exist, i.e. which date strings are valid, simply
browse the list as mentioned above. Valid date formats are
To access snapshots of suites using Valid-Until that are older than a dozen days,
it is necessary to ignore the Valid-Until header within Release files, in order
to prevent apt from disregarding snapshot entries ("Release file expired"). Use
If you use at least apt version 1.1.exp9 (stretch and later), you can use this instead:
deb [check-valid-until=no] https://snapshot.debian.org/archive/debian/20091004T111800Z/ lenny main deb-src [check-valid-until=no] https://snapshot.debian.org/archive/debian/20091004T111800Z/ lenny main deb [check-valid-until=no] https://snapshot.debian.org/archive/debian-security/20091004T121501Z/ lenny/updates main deb-src [check-valid-until=no] https://snapshot.debian.org/archive/debian-security/20091004T121501Z/ lenny/updates main
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.
In the last couple of weeks, the snapshot.debian.org web frontends were updated from a pylons-based Python 2 application to a flask-based Python 3 application, thanks to work from Baptiste Beauplat.
Earlier this month, the binary package
Furthermore, the mirror of the
Currently, snapshot consists of close to 90TB of data in about 35 million files and storage capacity is becoming an issue again.
Snapshot keeps growing. We are now at approximate 60TB of files. This made it necessary to break up the RAID-1 mirror across two external storage arrays which Sanger is kindly providing, and it also meant we needed more machines (now six) at our mirrorsite, which LeaseWeb is generously donating. Thanks!
Imports of the debian-ports and debian-debug suite had failed for the last three weeks as individual files in those archives have exceeded the size representable in our database schema. We have now updated the database to support file sizes up to 9,223,372,036,854,775,807 Bytes (263-1; 8 EiB). Just like 640KB in ancient times, this will be truly sufficient indefinitely.
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
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).
Just a quick datapoint: Currently snapshot has about 11 million files in a bit over 16 terabytes of data.
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,
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).
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
Publicly announce the snapshot.debian.org service. Yay.
For older entries see the older news page.