<s>
OpenVAS	B-Protocol
(	O
Open	B-Protocol
Vulnerability	I-Protocol
Assessment	I-Protocol
System	I-Protocol
,	O
originally	O
known	O
as	O
GNessUs	O
)	O
is	O
the	O
scanner	O
component	O
of	O
Greenbone	O
Vulnerability	O
Manager	O
(	O
GVM	O
)	O
,	O
a	O
software	B-Architecture
framework	I-Architecture
of	O
several	O
services	O
and	O
tools	O
offering	O
vulnerability	O
scanning	O
and	O
vulnerability	O
management	O
.	O
</s>
<s>
All	O
Greenbone	O
Vulnerability	O
Manager	O
products	O
are	O
free	B-Application
software	I-Application
,	O
and	O
most	O
components	O
are	O
licensed	O
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
(	O
GPL	B-License
)	O
.	O
</s>
<s>
Plugins	O
for	O
Greenbone	O
Vulnerability	O
Manager	O
are	O
written	O
in	O
the	O
Nessus	B-Application
Attack	I-Application
Scripting	I-Application
Language	I-Application
,	O
NASL	O
.	O
</s>
<s>
Greenbone	O
Vulnerability	O
Manager	O
began	O
under	O
the	O
name	O
of	O
OpenVAS	B-Protocol
,	O
and	O
before	O
that	O
the	O
name	O
GNessUs	O
,	O
as	O
a	O
fork	B-Application
of	O
the	O
previously	O
open	B-Application
source	I-Application
Nessus	B-Protocol
scanning	O
tool	O
,	O
after	O
its	O
developers	O
Tenable	O
Network	O
Security	O
changed	O
it	O
to	O
a	O
proprietary	B-Application
(	O
closed	B-Application
source	I-Application
)	O
license	O
in	O
October	O
2005	O
.	O
</s>
<s>
OpenVAS	B-Protocol
was	O
originally	O
proposed	O
by	O
pentesters	O
at	O
SecuritySpace	O
,	O
discussed	O
with	O
pentesters	O
at	O
Portcullis	O
Computer	O
Security	O
and	O
then	O
announced	O
by	O
Tim	O
Brown	O
on	O
Slashdot	O
.	O
</s>
<s>
The	O
OpenVAS	B-Protocol
protocol	O
structure	O
aims	O
to	O
be	O
well-documented	O
to	O
assist	O
developers	O
.	O
</s>
<s>
The	O
OpenVAS	B-Protocol
Compendium	O
is	O
a	O
publication	O
of	O
the	O
OpenVAS	B-Protocol
Project	O
that	O
delivers	O
documentation	O
on	O
OpenVAS	B-Protocol
.	O
</s>
