<s>
DansGuardian	B-Application
,	O
written	O
by	O
SmoothWall	B-Protocol
Ltd	I-Protocol
and	O
others	O
,	O
is	O
content-control	B-Protocol
software	I-Protocol
:	O
software	O
designed	O
to	O
control	O
which	O
websites	O
users	O
can	O
access	O
.	O
</s>
<s>
DansGuardian	B-Application
must	O
be	O
installed	O
on	O
a	O
Unix	B-Application
or	O
Linux	B-Application
computer	O
,	O
such	O
as	O
a	O
server	O
computer	O
;	O
its	O
filtering	O
extends	O
to	O
all	O
computers	O
in	O
an	O
organization	O
,	O
including	O
Windows	B-Application
and	O
Macintosh	B-Operating_System
computers	O
.	O
</s>
<s>
DansGuardian	B-Application
is	O
used	O
by	O
schools	O
,	O
businesses	O
,	O
value-added	O
Internet	O
service	O
providers	O
,	O
and	O
others	O
.	O
</s>
<s>
As	O
of	O
now	O
,	O
DansGuardian	B-Application
is	O
no	O
longer	O
maintained	O
.	O
</s>
<s>
Its	O
successor	O
is	O
named	O
"	O
e2guardian	B-Application
"	O
.	O
</s>
<s>
DansGuardian	B-Application
is	O
distributed	O
under	O
the	O
GPLv2	O
free	O
software	O
license	O
,	O
and	O
written	O
using	O
the	O
C++	B-Language
programming	I-Language
language	I-Language
.	O
</s>
<s>
It	O
primarily	O
runs	O
in	O
Linux	B-Application
and	O
other	O
Unixes	B-Application
.	O
</s>
<s>
It	O
is	O
entirely	O
command	O
line	O
and	O
web-based	O
,	O
and	O
meant	O
to	O
be	O
used	O
in	O
conjunction	O
with	O
a	O
web	O
proxy	O
such	O
as	O
Squid	B-Protocol
.	O
</s>
<s>
The	O
Ubuntu	O
Christian	O
Edition	O
Linux	B-Application
distribution	O
includes	O
a	O
graphical	O
user	O
interface	O
(	O
GUI	O
)	O
tool	O
for	O
configuring	O
DansGuardian	B-Application
.	O
</s>
<s>
The	O
tool	O
does	O
not	O
work	O
as	O
well	O
as	O
the	O
configuration	O
tools	O
included	O
with	O
SmoothWall	B-Protocol
Guardian	O
,	O
and	O
other	O
web	B-Protocol
filters	I-Protocol
.	O
</s>
<s>
Zentyal	B-Operating_System
has	O
the	O
option	O
to	O
use	O
Dansguardian	B-Application
as	O
a	O
proxy	O
server	O
with	O
a	O
web	O
interface	O
.	O
</s>
<s>
There	O
is	O
a	O
graphical	O
user	O
interface	O
available	O
for	O
Ubuntu	O
,	O
called	O
WebContentControl	O
,	O
which	O
was	O
designed	O
to	O
install	O
and	O
configure	O
DansGuardian	B-Application
,	O
FireHOL	B-Protocol
and	O
Tinyproxy	O
easily	O
.	O
</s>
<s>
The	O
url	O
filtering	O
capabilities	O
of	O
DansGuardian	B-Application
depend	O
largely	O
on	O
the	O
Blocklists	O
,	O
several	O
options	O
are	O
available	O
.	O
</s>
<s>
In	O
the	O
United	O
States	O
,	O
DansGuardian	B-Application
satisfies	O
the	O
requirements	O
of	O
Children	O
's	O
Internet	O
Protection	O
Act	O
.	O
</s>
<s>
Two	O
proprietary	B-Application
versions	O
of	O
DansGuardian	B-Application
exist	O
:	O
as	O
part	O
of	O
SmoothWall	B-Protocol
Limited	O
Firewalls	O
and	O
as	O
stand-alone	O
product	O
Smoothwall	B-Protocol
SWG	O
.	O
</s>
<s>
There	O
exists	O
a	O
fork	O
of	O
Dansguardian	B-Application
Project	O
called	O
MinD	O
.	O
</s>
<s>
Its	O
name	O
is	O
a	O
recursive	O
acronym	O
for	O
"	O
MinD	O
is	O
not	O
Dansguardian	B-Application
"	O
.	O
</s>
<s>
The	O
"	O
Toy	O
"	O
version	O
of	O
MinD	O
is	O
a	O
fork	O
of	O
DansGuardian	B-Application
version	O
2.10.1.1	O
with	O
some	O
improvements	O
.	O
</s>
<s>
A	O
fork	O
of	O
Dansguardian	B-Application
with	O
many	O
improvements	O
and	O
bug	O
fixes	O
,	O
e2Guardian	B-Application
is	O
a	O
web	B-Protocol
content	I-Protocol
filtering	I-Protocol
proxy	O
that	O
works	O
in	O
conjunction	O
with	O
another	O
caching	O
proxy	O
such	O
as	O
Squid	B-Protocol
or	O
Oops	O
.	O
</s>
