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zsync

Posted: Thu 21 Nov 2019, 11:54
by labbe5
https://www.cnx-software.com/2019/11/21 ... r-utility/

In your repositories.
Ubuntu 18.04 has it.

Zsync is an opensource file transfer utility built on top of rsync algorithm. This helps to download partial/differential files over the HTTP protocol. The utility allows downloading only new parts of a file from a centralized location, where the older version of the file is already within your computer.
While rsync is for syncing data from one computer to another, zsync allows file distribution, where the file hosted in a server using any web server can be distributed to many and downloaded seamlessly.


One of the best use cases of zsync is the distribution of Ubuntu/Debian iso images as .zsync downloads. You can choose Ubuntu iso .zsync from the below link, and the tool will download only the new changes in the file, no need to download the whole ISO image.