<s>
casync	B-Application
(	O
content-addressable	B-Data_Structure
synchronisation	O
)	O
is	O
a	O
Linux	B-Application
software	O
utility	O
designed	O
to	O
distribute	O
frequently-updated	O
file	B-Application
system	I-Application
images	O
over	O
the	O
Internet	O
.	O
</s>
<s>
According	O
to	O
the	O
creator	O
Lennart	O
Poettering	O
,	O
casync	B-Application
is	O
inspired	O
by	O
rsync	B-Application
and	O
Git	B-Application
,	O
as	O
well	O
as	O
tar	B-Application
.	O
</s>
<s>
casync	B-Application
is	O
aimed	O
to	O
be	O
used	O
for	O
Internet	B-Operating_System
of	I-Operating_System
things	I-Operating_System
(	O
IoT	B-Operating_System
)	O
,	O
container	B-Application
,	O
virtual	B-Architecture
machine	I-Architecture
(	O
VM	O
)	O
,	O
portable	O
services	O
,	O
and	O
operating	B-General_Concept
system	I-General_Concept
(	O
OS	O
)	O
images	O
,	O
as	O
well	O
as	O
backups	B-Protocol
and	O
home	B-Application
directory	I-Application
synchronization	O
.	O
</s>
<s>
casync	B-Application
splits	O
images	O
into	O
variable	O
size	O
segments	O
,	O
uses	O
sha256	B-Algorithm
checksums	B-Algorithm
,	O
and	O
aims	O
to	O
work	O
with	O
content	B-Operating_System
delivery	I-Operating_System
networks	I-Operating_System
(	O
CDNs	O
)	O
.	O
</s>
<s>
Available	O
for	O
Linux	B-Application
only	O
,	O
packages	O
are	O
available	O
for	O
Ubuntu	B-Operating_System
,	O
Fedora	O
and	O
Arch	O
Linux	B-Application
.	O
</s>
<s>
Similar	O
software	O
that	O
delivers	O
file	B-Application
system	I-Application
images	O
are	O
:	O
</s>
