<s>
ntopng	B-Protocol
is	O
computer	O
software	O
for	O
monitoring	O
traffic	O
on	O
a	O
computer	B-Architecture
network	I-Architecture
.	O
</s>
<s>
It	O
is	O
designed	O
to	O
be	O
a	O
high-performance	O
,	O
low-resource	O
replacement	O
for	O
ntop	B-Protocol
.	O
</s>
<s>
The	O
name	O
is	O
derived	O
from	O
ntop	B-Protocol
next	O
generation	O
.	O
</s>
<s>
ntopng	B-Protocol
is	O
open-source	B-Application
software	I-Application
released	O
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
(	O
GPLv3	O
)	O
for	O
software	O
.	O
</s>
<s>
Source	O
code	O
versions	O
are	O
available	O
for	O
the	O
operating	B-General_Concept
systems	I-General_Concept
:	O
Unix	B-Application
,	O
Linux	B-Application
,	O
BSD	B-Operating_System
,	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
,	O
and	O
Windows	B-Application
.	O
</s>
<s>
Binary	O
versions	O
are	O
available	O
for	O
CentOS	O
,	O
Ubuntu	B-Operating_System
,	O
and	O
OS	B-Operating_System
X	I-Operating_System
.	O
</s>
<s>
A	O
demo	O
binary	O
is	O
available	O
for	O
Windows	B-Application
that	O
limits	O
analysis	O
to	O
2,000	O
packets	O
.	O
</s>
<s>
ntopng	B-Protocol
's	O
engine	O
is	O
written	O
in	O
the	O
programming	O
language	O
C++	B-Language
.	O
</s>
<s>
The	O
optional	O
web	O
interface	O
is	O
written	O
in	O
Lua	B-Language
.	O
</s>
<s>
ntopng	B-Protocol
relies	O
on	O
the	O
Redis	B-Operating_System
key-value	O
server	O
rather	O
than	O
a	O
traditional	O
database	O
,	O
takes	O
advantage	O
of	O
nDPI	O
for	O
protocol	O
detection	O
,	O
supports	O
geolocation	O
of	O
hosts	O
,	O
and	O
is	O
able	O
to	O
display	O
real-time	O
flow	O
analysis	O
for	O
connected	O
hosts	O
.	O
</s>
<s>
Explanation	O
:	O
run	O
ntopng	B-Protocol
executable	O
,	O
set	O
DNS	O
mode	O
to	O
decode	O
DNS	O
responses	O
and	O
resolve	O
all	O
numeric	O
IPs	O
,	O
use	O
fifth	O
network	O
interface	O
,	O
operate	O
in	O
daemon	O
mode	O
,	O
use	O
Redis	B-Operating_System
server	O
running	O
on	O
local	O
host	O
,	O
and	O
operate	O
in	O
verbose	O
mode	O
.	O
</s>
