<s>
HTTP	B-Protocol
403	I-Protocol
is	O
an	O
HTTP	B-Protocol
status	I-Protocol
code	I-Protocol
meaning	O
access	O
to	O
the	O
requested	O
resource	O
is	O
forbidden	O
.	O
</s>
<s>
HTTP	B-Protocol
403	I-Protocol
provides	O
a	O
distinct	O
error	O
case	O
from	O
HTTP	O
401	O
;	O
while	O
HTTP	O
401	O
is	O
returned	O
when	O
the	O
client	O
has	O
not	O
authenticated	O
,	O
and	O
implies	O
that	O
a	O
successful	O
response	O
may	O
be	O
returned	O
following	O
valid	O
authentication	O
,	O
HTTP	B-Protocol
403	I-Protocol
is	O
returned	O
when	O
the	O
client	O
is	O
not	O
permitted	O
access	O
to	O
the	O
resource	O
despite	O
providing	O
authentication	O
such	O
as	O
insufficient	O
permissions	O
of	O
the	O
authenticated	O
account	O
.	O
</s>
<s>
Error	B-Protocol
403	I-Protocol
:	O
"	O
The	O
server	O
understood	O
the	O
request	O
,	O
but	O
is	O
refusing	O
to	O
authorize	O
it.	O
"	O
</s>
<s>
The	O
Apache	B-Application
web	I-Application
server	I-Application
returns	O
403	B-Protocol
Forbidden	I-Protocol
in	O
response	O
to	O
requests	O
for	O
URL	O
paths	O
that	O
corresponded	O
to	O
file	B-Application
system	I-Application
directories	B-Application
when	O
directory	B-Application
listings	O
have	O
been	O
disabled	O
in	O
the	O
server	O
and	O
there	O
is	O
no	O
Directory	B-Application
Index	O
directive	O
to	O
specify	O
an	O
existing	O
file	O
to	O
be	O
returned	O
to	O
the	O
browser	O
.	O
</s>
<s>
Some	O
administrators	O
configure	O
the	O
Mod	B-Application
proxy	I-Application
extension	O
to	O
Apache	B-Application
to	O
block	O
such	O
requests	O
and	O
this	O
will	O
also	O
return	O
403	B-Protocol
Forbidden	I-Protocol
.	O
</s>
<s>
In	O
WebDAV	B-Protocol
,	O
the	O
403	B-Protocol
Forbidden	I-Protocol
response	O
will	O
be	O
returned	O
by	O
the	O
server	O
if	O
the	O
client	O
issued	O
a	O
PROPFIND	B-Protocol
request	O
but	O
did	O
not	O
also	O
issue	O
the	O
required	O
Depth	O
header	O
or	O
issued	O
a	O
Depth	O
header	O
of	O
infinity	O
.	O
</s>
<s>
The	O
following	O
nonstandard	O
codes	O
are	O
returned	O
by	O
Microsoft	O
's	O
Internet	B-Application
Information	I-Application
Services	I-Application
,	O
and	O
are	O
not	O
officially	O
recognized	O
by	O
IANA	O
.	O
</s>
