| Original author(s) | Lennart Poettering |
|---|---|
| Initial release | June 20, 2017 |
| Stable release | 2[1] 
/ 26 July 2017 |
| Repository | github |
| Written in | C |
| Operating system | Linux |
| Type | Data transfer |
| License | LGPLv2.1 |
| Website | github |
casync (content-addressable synchronisation) is a Linux software utility designed to distribute frequently-updated file system images over the Internet.[2][3]
According to the creator Lennart Poettering, casync is inspired by rsync and Git,[4] as well as tar.[5] casync is aimed to be used for Internet of things (IoT), container, virtual machine (VM), portable services, and operating system (OS) images, as well as backups and home directory synchronization.[3] casync splits images into variable size segments, uses sha256 checksums, and aims to work with content delivery networks (CDNs).[5][4] Available for Linux only,[4] packages are available for Ubuntu, Fedora and Arch Linux.[5]
Similar software that delivers file system images are:[4]