<s>
The	O
Apple	B-Protocol
Filing	I-Protocol
Protocol	I-Protocol
(	O
AFP	O
)	O
,	O
formerly	O
AppleTalk	B-Protocol
Filing	I-Protocol
Protocol	I-Protocol
,	O
is	O
a	O
proprietary	O
network	B-Architecture
protocol	O
,	O
and	O
part	O
of	O
the	O
Apple	O
File	O
Service	O
(	O
AFS	O
)	O
,	O
that	O
offers	O
file	O
services	O
for	O
macOS	B-Application
,	O
classic	B-Application
Mac	I-Application
OS	I-Application
,	O
and	O
Apple	B-Device
IIs	I-Device
.	O
</s>
<s>
In	O
OS	B-Operating_System
X	I-Operating_System
10.8	I-Operating_System
Mountain	I-Operating_System
Lion	I-Operating_System
and	O
earlier	O
,	O
AFP	O
was	O
the	O
primary	O
protocol	O
for	O
file	O
services	O
.	O
</s>
<s>
Starting	O
with	O
OS	B-Operating_System
X	I-Operating_System
10.9	I-Operating_System
Mavericks	I-Operating_System
,	O
Server	B-Operating_System
Message	I-Operating_System
Block	I-Operating_System
(	O
SMB	O
)	O
was	O
made	O
the	O
primary	O
file	O
sharing	O
protocol	O
,	O
with	O
the	O
ability	O
to	O
run	O
an	O
AFP	O
server	O
removed	O
later	O
in	O
macOS	B-Operating_System
11	I-Operating_System
Big	I-Operating_System
Sur	I-Operating_System
.	O
</s>
<s>
The	O
latest	O
version	O
of	O
Apple	O
's	O
OS	O
at	O
the	O
time	O
of	O
writing	O
,	O
macOS	B-Operating_System
Ventura	I-Operating_System
,	O
is	O
still	O
able	O
to	O
authenticate	O
with	O
and	O
connect	O
to	O
AFP	O
servers	O
.	O
</s>
<s>
AFP	O
supports	O
Unicode	O
file	O
names	O
,	O
POSIX	O
and	O
access	O
control	O
list	O
permissions	O
,	O
resource	B-Operating_System
forks	I-Operating_System
,	O
named	O
extended	B-Application
attributes	I-Application
,	O
and	O
advanced	O
file	B-Application
locking	I-Application
.	O
</s>
<s>
AFP	O
versions	O
3.0	O
and	O
greater	O
rely	O
exclusively	O
on	O
TCP/IP	B-Protocol
(	O
port	O
548	O
)	O
for	O
establishing	O
communication	O
,	O
supporting	O
AppleTalk	B-Application
only	O
as	O
a	O
service	B-Protocol
discovery	I-Protocol
protocol	I-Protocol
.	O
</s>
<s>
The	O
AFP	O
2.x	O
family	O
supports	O
both	O
TCP/IP	B-Protocol
(	O
using	O
Data	B-Protocol
Stream	I-Protocol
Interface	I-Protocol
)	O
and	O
AppleTalk	B-Application
for	O
communication	O
and	O
service	B-Protocol
discovery	I-Protocol
.	O
</s>
<s>
Many	O
third-party	O
AFP	O
implementations	O
use	O
AFP	O
2.x	O
,	O
thereby	O
supporting	O
AppleTalk	B-Application
as	O
a	O
connection	O
method	O
.	O
</s>
<s>
Still	O
earlier	O
versions	O
rely	O
exclusively	O
on	O
AppleTalk	B-Application
.	O
</s>
<s>
For	O
this	O
reason	O
,	O
some	O
older	O
literature	O
refers	O
to	O
AFP	O
as	O
"	O
AppleTalk	B-Protocol
Filing	I-Protocol
Protocol	I-Protocol
"	O
.	O
</s>
<s>
Other	O
literature	O
may	O
refer	O
to	O
AFP	O
as	O
"	O
AppleShare	B-General_Concept
"	O
,	O
the	O
name	O
of	O
the	O
Mac	B-Operating_System
OS	I-Operating_System
9	I-Operating_System
(	O
and	O
earlier	O
)	O
AFP	O
client	O
.	O
</s>
<s>
Mac	B-Application
OS	I-Application
X	I-Application
v10.4	I-Application
and	O
later	O
eliminates	O
support	O
for	O
AFP	O
servers	O
that	O
rely	O
solely	O
on	O
AppleTalk	B-Application
for	O
communication	O
.	O
</s>
<s>
Computers	O
using	O
classic	B-Application
Mac	I-Application
OS	I-Application
can	O
connect	O
to	O
AFP	O
3.x	O
servers	O
,	O
with	O
some	O
limitations	O
.	O
</s>
<s>
For	O
example	O
,	O
the	O
maximum	O
file	O
size	O
in	O
Mac	B-Application
OS	I-Application
8	O
is	O
2	O
gigabytes	O
.	O
</s>
<s>
Typically	O
,	O
Mac	B-Operating_System
OS	I-Operating_System
9.1	I-Operating_System
or	O
later	O
is	O
recommended	O
for	O
connecting	O
to	O
AFP	O
3.x	O
servers	O
;	O
for	O
versions	O
of	O
original	O
Mac	B-Application
OS	I-Application
prior	O
to	O
9.1	O
,	O
installation	O
of	O
the	O
AppleShare	B-General_Concept
client	O
3.8.8	O
is	O
required	O
.	O
</s>
<s>
AFP	O
3.0	O
and	O
later	O
is	O
required	O
for	O
network	B-Architecture
home	O
directories	O
,	O
since	O
Mac	B-Application
OS	I-Application
X	O
requires	O
POSIX	O
permissions	O
on	O
user	O
home	O
directories	O
.	O
</s>
<s>
Single	O
sign-on	O
using	O
Kerberos	B-Protocol
requires	O
AFP	O
3.1	O
.	O
</s>
<s>
APFS	B-Application
:	O
AFP	O
is	O
incompatible	O
with	O
sharing	O
of	O
APFS	B-Application
volumes	O
but	O
is	O
still	O
usable	O
as	O
a	O
Time	B-Operating_System
Machine	I-Operating_System
destination	O
in	O
High	O
Sierra	O
.	O
</s>
<s>
Early	O
implementations	O
of	O
AFP	O
server	O
software	O
were	O
available	O
in	O
Mac	B-Application
OS	I-Application
starting	O
with	O
System	O
6	O
,	O
in	O
AppleShare	B-General_Concept
and	O
AppleShare	B-General_Concept
IP	I-General_Concept
,	O
and	O
in	O
early	O
"	O
1.x	O
"	O
releases	O
of	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
Server	I-Operating_System
.	O
</s>
<s>
AppleShare	B-General_Concept
IP	I-General_Concept
5.x	O
,	O
6.x	O
,	O
and	O
the	O
"	O
1.x	O
"	O
releases	O
of	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
Server	I-Operating_System
introduced	O
AFP	O
version	O
2.2	O
.	O
</s>
<s>
This	O
was	O
the	O
first	O
version	O
to	O
offer	O
transport	O
connections	O
using	O
TCP/IP	B-Protocol
as	O
well	O
as	O
AppleTalk	B-Application
.	O
</s>
<s>
It	O
also	O
increased	O
the	O
maximum	O
share	O
point	O
size	O
from	O
four	O
gigabytes	O
to	O
two	O
terabytes	O
,	O
although	O
the	O
maximum	O
file	O
size	O
that	O
could	O
be	O
stored	O
remained	O
at	O
two	O
gigabytes	O
due	O
to	O
limitations	O
in	O
the	O
original	O
Mac	B-Application
OS	I-Application
.	O
</s>
<s>
Changes	O
made	O
in	O
AFP	O
since	O
version	O
3.0	O
represent	O
major	O
advances	O
in	O
the	O
protocol	O
,	O
introducing	O
features	O
designed	O
specifically	O
for	O
Mac	B-Application
OS	I-Application
X	O
clients	O
.	O
</s>
<s>
However	O
,	O
like	O
the	O
AppleShare	B-General_Concept
client	O
in	O
original	O
Mac	B-Application
OS	I-Application
,	O
the	O
AFP	O
client	O
in	O
Mac	B-Application
OS	I-Application
X	O
continues	O
to	O
support	O
type	O
and	O
creator	B-Operating_System
codes	I-Operating_System
,	O
along	O
with	O
filename	O
extensions	O
.	O
</s>
<s>
AFP	O
3.0	O
was	O
introduced	O
in	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
Server	I-Operating_System
10.0.3	O
,	O
and	O
was	O
used	O
through	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
Server	I-Operating_System
10.1.5	O
.	O
</s>
<s>
It	O
was	O
the	O
first	O
version	O
to	O
use	O
the	O
UNIX-style	B-Operating_System
POSIX	O
permissions	O
model	O
and	O
Unicode	O
UTF-8	O
file	O
name	O
encodings	O
.	O
</s>
<s>
Version	O
3.0	O
supported	O
a	O
maximum	O
share	O
point	O
and	O
file	O
size	O
of	O
two	O
terabytes	O
,	O
the	O
maximum	O
file	O
size	O
and	O
volume	O
size	O
for	O
Mac	B-Application
OS	I-Application
X	O
until	O
version	O
10.2	O
.	O
</s>
<s>
AFP	O
3.1	O
was	O
introduced	O
in	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
Server	I-Operating_System
version	O
10.2	O
.	O
Notable	O
changes	O
included	O
support	O
for	O
Kerberos	B-Protocol
authentication	O
,	O
automatic	O
client	O
reconnect	O
,	O
NFS	O
resharing	O
,	O
and	O
secure	O
AFP	O
connections	O
via	O
Secure	B-Protocol
Shell	I-Protocol
(	O
SSH	B-Protocol
)	O
.	O
</s>
<s>
The	O
maximum	O
share	O
point	O
and	O
file	O
size	O
increased	O
to	O
8	O
terabytes	O
with	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
Server	I-Operating_System
10.2	O
,	O
and	O
then	O
to	O
16	O
terabytes	O
with	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
Server	I-Operating_System
10.3	O
.	O
</s>
<s>
AFP	O
3.2	O
adds	O
support	O
for	O
Access	O
Control	O
Lists	O
and	O
extended	B-Application
attributes	I-Application
in	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
Server	I-Operating_System
10.4	B-Application
.	O
</s>
<s>
Maximum	O
share	O
point	O
size	O
is	O
at	O
least	O
16	O
terabytes	O
,	O
although	O
Apple	O
has	O
not	O
published	O
a	O
limits	O
document	O
for	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
Server	I-Operating_System
10.4	B-Application
.	O
</s>
<s>
Apple	O
implemented	O
AFP	O
3.2	O
support	O
in	O
their	O
AirPort	B-Device
Time	I-Device
Capsule	I-Device
wireless	O
router	O
device	O
.	O
</s>
<s>
AFP	O
3.2	O
+	O
was	O
introduced	O
in	O
Mac	B-Application
OS	I-Application
X	I-Application
Leopard	I-Application
and	O
adds	O
case	O
sensitivity	O
support	O
and	O
improves	O
support	O
for	O
Time	B-Operating_System
Machine	I-Operating_System
(	O
synchronization	O
,	O
lock	O
stealing	O
,	O
and	O
sleep	O
notifications	O
)	O
.	O
</s>
<s>
AFP	O
3.3	O
mandates	O
support	O
for	O
Replay	O
Cache	O
functionality	O
(	O
required	O
for	O
Time	B-Operating_System
Machine	I-Operating_System
)	O
.	O
</s>
<s>
AFP	O
3.4	O
,	O
introduced	O
in	O
OS	B-Operating_System
X	I-Operating_System
Mountain	I-Operating_System
Lion	I-Operating_System
,	O
includes	O
a	O
minor	O
change	O
in	O
the	O
mapping	O
of	O
POSIX	O
errors	O
to	O
AFP	O
errors	O
.	O
</s>
<s>
In	O
Mac	B-Application
OS	I-Application
X	I-Application
Tiger	I-Application
,	O
users	O
can	O
connect	O
to	O
AFP	O
servers	O
by	O
browsing	O
for	O
them	O
in	O
the	O
Network	B-Architecture
globe	O
or	O
entering	O
an	O
AFP	O
Uniform	O
Resource	O
Locator	O
(	O
URL	O
)	O
into	O
the	O
Connect	O
to	O
Server	O
dialog	O
.	O
</s>
<s>
In	O
Mac	B-Application
OS	I-Application
X	I-Application
Leopard	I-Application
and	O
later	O
releases	O
,	O
AFP	O
shares	O
are	O
displayed	O
in	O
the	O
Finder	O
sidebar	O
.	O
</s>
<s>
AFP	O
URLs	O
take	O
the	O
form	O
:	O
afp:///	O
,	O
where	O
is	O
the	O
server	O
's	O
IP	B-Protocol
address	I-Protocol
,	O
Domain	B-Protocol
Name	I-Protocol
System	I-Protocol
(	O
DNS	B-Protocol
)	O
name	O
,	O
or	O
Bonjour	B-Application
name	O
,	O
and	O
is	O
the	O
name	O
of	O
the	O
share	O
point	O
.	O
</s>
<s>
In	O
Snow	O
Leopard	B-Application
and	O
later	O
,	O
a	O
URL	O
of	O
the	O
form	O
afp:////	O
can	O
be	O
used	O
to	O
mount	O
a	O
subdirectory	O
underneath	O
a	O
share	O
point	O
.	O
</s>
<s>
macOS	B-Application
also	O
offers	O
Personal	O
File	O
Sharing	O
,	O
a	O
"	O
light	O
"	O
implementation	O
of	O
the	O
current	O
version	O
of	O
AFP	O
.	O
</s>
<s>
In	O
Mac	B-Application
OS	I-Application
X	I-Application
10.4	I-Application
,	O
users	O
can	O
share	O
the	O
contents	O
of	O
their	O
Public	O
folders	O
by	O
checking	O
Personal	O
File	O
Sharing	O
in	O
the	O
Sharing	O
section	O
of	O
System	O
Preferences	O
.	O
</s>
<s>
AFP	O
URLs	O
for	O
AppleTalk	B-Application
servers	O
took	O
the	O
form	O
:	O
afp://at/:	O
.	O
</s>
<s>
For	O
networks	O
without	O
AppleTalk	B-Application
zones	O
,	O
an	O
asterisk	B-Language
( *	O
)	O
would	O
be	O
substituted	O
for	O
the	O
zone	O
name	O
.	O
</s>
<s>
An	O
open	B-Application
source	I-Application
AFP	O
server	O
called	O
Netatalk	B-Language
(	O
AFP	O
3.4	O
)	O
is	O
available	O
for	O
Unix-like	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
.	O
</s>
<s>
A	O
range	O
of	O
NAS	B-Application
solutions	O
integrate	O
Netatalk	B-Language
to	O
enable	O
support	O
for	O
AFP	O
.	O
</s>
<s>
Novell	B-Application
Open	I-Application
Enterprise	I-Application
Server	I-Application
supports	O
AFP	O
.	O
</s>
<s>
Microsoft	O
includes	O
AFP	O
2.2	O
server	O
support	O
as	O
an	O
option	O
in	O
some	O
versions	O
of	O
Windows	O
(	O
NT	B-Device
,	O
2000	B-Application
&	O
2003	B-Application
)	O
.	O
</s>
<s>
Windows	O
NT	B-Device
Server	O
(	O
3	O
and	O
4	O
)	O
only	O
supported	O
AppleTalk	B-Application
,	O
2000	B-Application
added	O
AppleShare	B-General_Concept
over	O
IP	O
;	O
Services	O
for	O
Macintosh	O
(	O
SFM	O
)	O
,	O
was	O
removed	O
from	O
Windows	B-Device
Server	I-Device
2008	I-Device
onwards	O
.	O
</s>
<s>
Novell	O
's	O
NetWare	B-Operating_System
supports	O
AFP	O
.	O
</s>
<s>
GroupLogic	B-Protocol
ExtremeZ-IP	B-General_Concept
(	O
AFP	O
3.3	O
)	O
and	O
for	O
Windows	O
offer	O
AFP	O
3.x	O
support	O
-	O
now	O
Acronis	O
.	O
</s>
<s>
is	O
a	O
NAS	B-Application
with	O
a	O
proprietary	O
implementation	O
of	O
AFP	O
3.1	O
.	O
</s>
<s>
One	O
of	O
their	O
products	O
,	O
ka-share	O
,	O
has	O
been	O
a	O
main	O
stay	O
on	O
Solaris	B-Application
SPARC	B-Architecture
and	O
Silicon	O
Graphics	O
IRIX	B-Operating_System
platforms	O
.	O
</s>
<s>
Columbia	O
AppleTalk	B-Application
Package	O
(	O
CAP	O
)	O
is	O
a	O
historical	O
open	B-Application
source	I-Application
implementation	O
of	O
AFP	O
and	O
AppleTalk	B-Application
from	O
Columbia	O
University	O
that	O
was	O
last	O
updated	O
in	O
1996	O
.	O
</s>
