<s>
Sagan	B-Protocol
is	O
an	O
open	O
source	O
(	O
GNU/GPLv2	O
)	O
multi-threaded	O
,	O
high	O
performance	O
,	O
real-time	O
log	B-Application
analysis	I-Application
&	O
correlation	O
engine	O
developed	O
by	O
Quadrant	O
Information	O
Security	O
that	O
runs	O
on	O
Unix	B-Application
operating	I-Application
systems	I-Application
.	O
</s>
<s>
It	O
is	O
written	O
in	O
C	B-Language
and	O
uses	O
a	O
multi-threaded	O
architecture	O
to	O
deliver	O
high	O
performance	O
log	O
&	O
event	O
analysis	O
.	O
</s>
<s>
Sagan	B-Protocol
's	O
structure	O
and	O
rules	O
work	O
similarly	O
to	O
the	O
Sourcefire	O
Snort	B-Language
IDS/IPS	O
engine	O
.	O
</s>
<s>
This	O
allows	O
Sagan	B-Protocol
to	O
be	O
compatible	O
with	O
Snort	B-Language
or	O
Suricata	B-Application
rule	O
management	O
softwares	O
and	O
give	O
Sagan	B-Protocol
the	O
ability	O
to	O
correlate	O
with	O
Snort	B-Language
IDS/IPS	O
data	O
.	O
</s>
<s>
Sagan	B-Protocol
supports	O
different	O
output	O
formats	O
for	O
reporting	O
and	O
analysis	O
,	O
log	O
normalization	O
,	O
script	O
execution	O
on	O
event	O
detection	O
,	O
GeoIP	O
detection/alerting	O
and	O
time	O
sensitive	O
alerting	O
.	O
</s>
