<s>
This	O
is	O
a	O
comparison	B-Protocol
of	I-Protocol
firewalls	I-Protocol
.	O
</s>
<s>
Firewall	O
License	B-License
Cost	O
OS	B-General_Concept
Clavister	B-Protocol
Included	O
on	O
all	O
ClavisterNGFWs	O
Proprietary	B-Application
operating	B-General_Concept
system	I-General_Concept
cOS	O
Core	O
Check	O
Point	O
Included	O
on	O
Check	O
Pointsecurity	O
gateways	O
Proprietary	B-Application
operating	B-General_Concept
system	I-General_Concept
Check	O
Point	O
IPSOand	O
Gaia	O
(	O
Linux-based	O
)	O
FortiGate	O
Included	O
on	O
all	O
Fortigatedevices	O
Proprietary	B-Application
,	O
FortiOS	O
,	O
</s>
<s>
Based	O
on	O
the	O
Linux	B-Application
kernel	O
Palo	O
Alto	O
Networks	O
Included	O
on	O
Palo	O
AltoNetworks	O
firewalls	O
Proprietary	B-Application
,	O
PAN-OS	O
,	O
</s>
<s>
Based	O
on	O
the	O
Linux	B-Application
kernel	O
Sophos	O
Included	O
on	O
Sophos	O
UTM	O
Linux-based	O
appliance	O
Cisco	O
ASA	O
Firepower	O
Included	O
on	O
all	O
CISCOASA	O
devices	O
Proprietary	B-Application
operating	B-General_Concept
system	I-General_Concept
.	O
</s>
<s>
Based	O
on	O
the	O
Linux	B-Application
kernel	O
.	O
</s>
<s>
Based	O
on	O
the	O
Linux	B-Application
kernel	O
Barracuda	O
Firewall	O
Included	O
Firewall	O
Next	O
Generation	O
appliance	O
Windows-based	O
applianceembedded	O
firewall	O
distribution	O
Cyberoam	O
Included	O
Firewall	O
Sophos	O
appliance	O
Windows-based	O
applianceembedded	O
firewall	O
distribution	O
D-Link	B-General_Concept
Included	O
Firewall	O
DFL	O
Windows-based	O
applianceembedded	O
firewall	O
distribution	O
Endian	B-Protocol
Firewall	I-Protocol
Free	O
/	O
Paid	O
Linux-based	O
appliance	O
Forcepoint	O
NGFW	B-Protocol
Included	O
on	O
all	O
Forcepoint	O
NGFW	B-Protocol
devices	O
Proprietary	B-Application
operating	B-General_Concept
system	I-General_Concept
OPNsense	B-Protocol
Free	O
/	O
Paid	O
FreeBSD-based	O
appliancefirewall	O
distribution	O
pfSense	B-Protocol
Free	O
/	O
Paid	O
FreeBSD-based	O
appliancefirewall	O
distribution	O
Zeroshell	B-Protocol
Free	O
/	O
Paid	O
Linux/NanoBSD	O
-based	O
appliancefirewall	O
distribution	O
SmoothWall	B-Protocol
Free	O
/	O
Paid	O
Linux-based	O
applianceembedded	O
firewall	O
distribution	O
IPFire	B-Protocol
Free	O
(	O
Donations	O
welcomed	O
)	O
Linux-based	O
applianceembedded	O
firewall	O
distribution	O
WatchGuard	O
Included	O
on	O
all	O
Firebox	O
devicesProprietary	O
,	O
Fireware	O
OS	B-General_Concept
,	O
</s>
<s>
IPS	O
:	O
Intrusion	O
prevention	O
system	O
Open-Source	O
License	B-License
?	O
</s>
<s>
Class	O
:	O
Home	O
/	O
Professional	O
Operating	B-General_Concept
Systems	I-General_Concept
on	O
which	O
it	O
runs	O
?	O
</s>
<s>
Vyatta	B-Protocol
Professional	O
Vyatta	B-Protocol
OS	B-General_Concept
(	O
built	O
on	O
Debian	O
)	O
WinGate	B-Application
Professional	O
Windows	O
2000	O
,	O
Windows	O
XP	O
,	O
Windows	O
2003	O
,	O
Windows	O
Vista	O
,	O
Windows	O
2008	O
.	O
</s>
