<s>
IPFire	B-Protocol
is	O
a	O
hardened	O
open	B-Application
source	I-Application
Linux	B-Application
distribution	I-Application
that	O
primarily	O
performs	O
as	O
a	O
router	B-Protocol
and	O
a	O
firewall	B-Application
;	O
a	O
standalone	O
firewall	B-Application
system	O
with	O
a	O
web-based	O
management	O
console	O
for	O
configuration	O
.	O
</s>
<s>
IPFire	B-Protocol
originally	O
started	O
as	O
a	O
fork	B-Application
of	O
IPCop	O
and	O
has	O
been	O
rewritten	O
on	O
basis	O
of	O
Linux	B-Application
From	O
Scratch	O
since	O
version	O
2	O
.	O
</s>
<s>
It	O
supports	O
installation	O
of	O
add-ons	O
to	O
add	O
server	B-Application
services	O
,	O
which	O
can	O
be	O
extended	O
into	O
a	O
SOHO	O
server	B-Application
.	O
</s>
<s>
Two	O
network	B-Protocol
cards	I-Protocol
are	O
needed	O
to	O
connect	O
to	O
an	O
Ethernet	O
network	O
.	O
</s>
<s>
DSL	O
,	O
LTE	O
and	O
Wi-Fi	O
(	O
WLAN	B-Architecture
)	O
are	O
supported	O
,	O
too	O
,	O
with	O
corresponding	O
hardware	O
.	O
</s>
<s>
The	O
required	O
computing	O
power	O
to	O
run	O
IPFire	B-Protocol
depends	O
on	O
the	O
area	O
of	O
application	O
.	O
</s>
<s>
Most	O
commonly	O
,	O
x86	B-Device
systems	I-Device
are	O
being	O
used	O
,	O
but	O
ARM	B-Architecture
devices	O
,	O
such	O
as	O
Raspberry	B-Operating_System
Pi	I-Operating_System
or	O
Banana	B-Application
Pi	I-Application
,	O
are	O
supported	O
,	O
too	O
.	O
</s>
<s>
IPFire	B-Protocol
can	O
be	O
used	O
in	O
virtual	O
environments	O
(	O
such	O
as	O
KVM	B-Application
,	O
VMWare	B-Operating_System
,	O
XEN	B-Operating_System
,	O
Qemu	B-Application
,	O
etc	O
.	O
</s>
<s>
The	O
basic	O
setup	O
of	O
IPFire	B-Protocol
happens	O
over	O
a	O
guided	O
dialogue	O
on	O
the	O
console	O
,	O
and	O
the	O
further	O
administration	O
takes	O
place	O
on	O
the	O
web-based	O
management	O
interface	O
,	O
such	O
as	O
add-ons	O
and	O
additional	O
features	O
.	O
</s>
<s>
Developed	O
as	O
a	O
stateful	O
packet	O
inspection	O
(	O
SPI	O
)	O
firewall	B-Application
.	O
</s>
<s>
IPFire	B-Protocol
separates	O
the	O
network	O
into	O
different	O
segments	O
based	O
on	O
their	O
security	O
risk	O
which	O
are	O
organised	O
in	O
colours	O
.	O
</s>
<s>
Normal	O
clients	O
connected	O
to	O
the	O
LAN	O
are	O
represented	O
as	O
green	O
,	O
the	O
Internet	O
is	O
represented	O
as	O
red	O
,	O
an	O
optional	O
DMZ	B-General_Concept
is	O
represented	O
as	O
orange	O
and	O
an	O
optional	O
Wireless	O
network	O
is	O
represented	O
as	O
blue	O
.	O
</s>
<s>
No	O
traffic	O
can	O
flow	O
between	O
segments	O
unless	O
specifically	O
permitted	O
through	O
a	O
firewall	B-Application
rule	O
.	O
</s>
<s>
IPFire	B-Protocol
's	O
package	O
management	O
system	O
,	O
called	O
Pakfire	O
allows	O
to	O
install	O
system	O
updates	O
,	O
which	O
keep	O
security	O
up	O
to	O
date	O
,	O
and	O
additional	O
software	O
packages	O
for	O
customisation	O
to	O
different	O
usage	O
scenarios	O
and	O
needs	O
.	O
</s>
<s>
The	O
Linux	B-Application
system	O
is	O
customised	O
for	O
the	O
concrete	O
purpose	O
of	O
a	O
firewall	B-Application
.	O
</s>
<s>
Proxy	B-Application
server	I-Application
with	O
content	O
filter	O
and	O
catching-updates	O
functions	O
(	O
e.g.	O
</s>
<s>
The	O
IPFire	B-Protocol
Project	O
built	O
a	O
free	O
Internet	B-Application
geolocation	I-Application
database	O
published	O
under	O
the	O
Creative	O
Commons	O
license	O
.	O
</s>
<s>
It	O
is	O
being	O
used	O
by	O
The	O
Tor	B-Application
Project	I-Application
to	O
identify	O
the	O
location	O
of	O
Tor	B-Application
nodes	I-Application
and	O
relays	O
.	O
</s>
