<s>
Uncomplicated	B-Language
Firewall	I-Language
(	O
UFW	O
)	O
is	O
a	O
program	O
for	O
managing	O
a	O
netfilter	B-Application
firewall	B-Application
designed	O
to	O
be	O
easy	O
to	O
use	O
.	O
</s>
<s>
It	O
uses	O
a	O
command-line	B-Application
interface	I-Application
consisting	O
of	O
a	O
small	O
number	O
of	O
simple	O
commands	O
,	O
and	O
uses	O
iptables	B-Application
for	O
configuration	O
.	O
</s>
<s>
UFW	O
is	O
available	O
by	O
default	O
in	O
all	O
Ubuntu	B-Operating_System
installations	O
since	O
8.04	O
LTS	O
.	O
</s>
<s>
Gufw	B-Language
is	O
intended	O
to	O
be	O
an	O
easy	O
,	O
intuitive	O
graphical	B-Application
user	I-Application
interface	I-Application
for	O
managing	O
Uncomplicated	B-Language
Firewall	I-Language
.	O
</s>
<s>
Gufw	B-Language
has	O
been	O
designed	O
for	O
Ubuntu	B-Operating_System
,	O
but	O
is	O
also	O
available	O
in	O
Debian-based	O
distributions	O
and	O
in	O
Arch	O
Linux	B-Application
;	O
anywhere	O
Python	B-Language
,	O
GTK	B-Application
and	O
UFW	O
are	O
available	O
.	O
</s>
