<s>
Shinken	B-Protocol
is	O
an	O
open	B-Application
source	I-Application
computer	O
system	O
and	O
network	O
monitoring	O
software	B-Application
application	I-Application
compatible	O
with	O
Nagios	B-Application
.	O
</s>
<s>
It	O
watches	O
hosts	B-Protocol
and	O
services	O
,	O
gathers	O
performance	O
data	O
and	O
alerts	O
users	O
when	O
error	O
conditions	O
occur	O
and	O
again	O
when	O
the	O
conditions	O
clear	O
.	O
</s>
<s>
Shinken	B-Protocol
's	O
architecture	O
aims	O
to	O
offer	O
easier	O
load	B-Application
balancing	I-Application
and	O
high	O
availability	O
.	O
</s>
<s>
It	O
takes	O
its	O
name	O
from	O
this	O
functionality	O
:	O
a	O
Shinken	B-Protocol
is	O
a	O
Japanese	O
sword	O
.	O
</s>
<s>
Shinken	B-Protocol
was	O
written	O
by	O
Jean	O
Gabès	O
as	O
a	O
proof	O
of	O
concept	O
for	O
a	O
new	O
Nagios	B-Application
architecture	O
.	O
</s>
<s>
Believing	O
the	O
new	O
implementation	O
was	O
faster	O
and	O
more	O
flexible	O
than	O
the	O
old	O
C	B-Language
code	I-Language
,	O
he	O
proposed	O
it	O
as	O
the	O
new	O
development	O
branch	O
of	O
Nagios	B-Application
4	O
.	O
</s>
<s>
This	O
proposal	O
was	O
turned	O
down	O
by	O
the	O
Nagios	B-Application
authors	O
,	O
so	O
Shinken	B-Protocol
became	O
an	O
independent	O
network	O
monitoring	O
software	B-Application
application	I-Application
compatible	O
with	O
Nagios	B-Application
.	O
</s>
<s>
Shinken	B-Protocol
is	O
designed	O
to	O
run	O
under	O
all	O
operating	B-General_Concept
systems	I-General_Concept
where	O
Python	B-Language
runs	O
.	O
</s>
<s>
The	O
development	O
environment	O
is	O
under	O
Linux	B-Application
,	O
but	O
also	O
runs	O
well	O
on	O
other	O
Unix	B-Application
variants	O
and	O
Windows	O
.	O
</s>
<s>
The	O
reactionner	O
process	O
(	O
responsible	O
for	O
sending	O
notifications	O
)	O
can	O
also	O
be	O
run	O
under	O
the	O
Android	B-Application
OS	I-Application
.	O
</s>
<s>
It	O
is	O
free	B-Application
software	I-Application
,	O
licensed	O
under	O
the	O
terms	O
of	O
the	O
Affero	O
General	O
Public	O
License	O
as	O
published	O
by	O
the	B-Operating_System
Free	I-Operating_System
Software	I-Operating_System
Foundation	I-Operating_System
.	O
</s>
<s>
Remote	O
monitoring	O
supported	O
through	O
SSH	B-Protocol
or	O
SSL	B-Protocol
encrypted	O
tunnels	O
.	O
</s>
<s>
Simple	O
plugin	O
design	O
that	O
allows	O
users	O
to	O
easily	O
develop	O
their	O
own	O
service	O
checks	O
depending	O
on	O
needs	O
,	O
by	O
using	O
the	O
tools	O
of	O
choice	O
(	O
shell	B-Language
scripts	I-Language
,	O
C++	B-Language
,	O
Perl	B-Language
,	O
Ruby	B-Language
,	O
Python	B-Language
,	O
PHP	B-Application
,	O
C#	B-Application
,	O
etc	O
.	O
)	O
</s>
<s>
A	O
Shinken	B-Protocol
installation	O
consists	O
of	O
several	O
processes	O
,	O
each	O
optimized	O
for	O
a	O
specific	O
task	O
.	O
</s>
<s>
There	O
can	O
be	O
multiple	O
instances	O
for	O
each	O
type	O
of	O
process	O
,	O
either	O
on	O
a	O
single	O
host	O
or	O
spread	O
over	O
many	O
hosts	B-Protocol
.	O
</s>
<s>
The	O
Shinken	B-Protocol
WebUI	O
is	O
the	O
builtin	O
Web	O
interface	O
that	O
provides	O
near	O
real	O
time	O
status	O
information	O
,	O
configuration	O
,	O
interaction	O
,	O
a	O
dashboard	O
to	O
visualize	O
trending	O
data	O
from	O
Graphite	B-Application
databases	O
and	O
the	O
visualization	O
of	O
dependency	O
tree	O
graphs	O
.	O
</s>
<s>
The	O
Shinken	B-Protocol
skonfUI	O
is	O
an	O
independent	O
web	O
front-end	O
used	O
to	O
manage	O
the	O
discovery	O
process	O
and	O
configuration	O
tasks	O
.	O
</s>
<s>
The	O
shinken-admin	O
CLI	O
script	O
is	O
used	O
to	O
manage	O
during	O
runtime	O
process	O
level	O
aspects	O
of	O
the	O
system	O
,	O
such	O
as	O
changing	O
logging	O
levels	O
and	O
getting	O
health	O
reports	O
.	O
</s>
<s>
The	O
install.sh	O
CLI	O
script	O
is	O
the	O
main	O
management	O
script	O
to	O
install	O
,	O
remove	O
or	O
update	O
Shinken	B-Protocol
and	O
its	O
associated	O
software	O
.	O
</s>
<s>
Shinken	B-Protocol
has	O
an	O
open	O
and	O
test-driven	O
development	O
approach	O
,	O
with	O
contributors	O
to	O
the	O
project	O
providing	O
new	O
features	O
,	O
code	O
refactoring	O
,	O
code	O
quality	O
and	O
bug	O
fixing	O
.	O
</s>
<s>
The	O
source	O
code	O
is	O
hosted	O
on	O
GitHub	B-Application
.	O
</s>
