<s>
The	O
NetWare	B-Protocol
Core	I-Protocol
Protocol	I-Protocol
(	O
NCP	O
)	O
is	O
a	O
network	O
protocol	O
used	O
in	O
some	O
products	O
from	O
Novell	O
,	O
Inc	O
.	O
</s>
<s>
It	O
is	O
usually	O
associated	O
with	O
the	O
client-server	O
operating	O
system	O
Novell	B-Operating_System
NetWare	I-Operating_System
which	O
originally	O
supported	O
primarily	O
MS-DOS	B-Application
client	O
stations	O
,	O
but	O
later	O
support	O
for	O
other	O
platforms	O
such	O
as	O
Microsoft	B-Application
Windows	I-Application
,	O
the	O
classic	B-Application
Mac	I-Application
OS	I-Application
,	O
Linux	B-Application
,	O
Windows	B-Device
NT	I-Device
,	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
,	O
and	O
various	O
flavors	O
of	O
Unix	B-Application
was	O
added	O
.	O
</s>
<s>
The	O
NCP	O
is	O
used	O
to	O
access	O
file	B-Application
,	O
print	B-Application
,	O
directory	O
,	O
clock	O
synchronization	O
,	O
messaging	O
,	O
remote	O
command	O
execution	O
and	O
other	O
network	O
service	O
functions	O
.	O
</s>
<s>
It	O
originally	O
took	O
advantage	O
of	O
an	O
easy	O
network	O
configuration	O
and	O
a	O
little	O
memory	O
footprint	O
of	O
the	O
IPX/SPX	B-Protocol
protocol	O
stack	O
.	O
</s>
<s>
Since	O
1991	O
the	O
TCP/IP	B-Protocol
implementation	O
is	O
available	O
.	O
</s>
<s>
Novell	B-Application
eDirectory	I-Application
uses	O
NCP	O
for	O
synchronizing	O
data	O
changes	O
between	O
the	O
servers	O
in	O
a	O
directory	O
service	O
tree	O
.	O
</s>
<s>
The	O
original	O
IPX/SPX	B-Protocol
implementation	O
was	O
provided	O
only	O
for	O
Novell	B-Operating_System
NetWare	I-Operating_System
platform	O
and	O
now	O
is	O
obsolete	O
.	O
</s>
<s>
The	O
TCP/IP	B-Protocol
implementation	O
uses	O
TCP/UDP	O
port	O
524	O
and	O
relies	O
on	O
SLP	B-Protocol
for	O
name	O
resolution	O
.	O
</s>
<s>
For	O
NCP	O
operation	O
in	O
IPX/SPX	B-Protocol
networks	O
the	O
bare	O
IPX	B-Protocol
protocol	O
was	O
used	O
with	O
Packet	O
Type	O
field	O
set	O
to	O
17	O
.	O
</s>
<s>
On	O
the	O
workstation	O
(	O
client	O
station	O
)	O
side	O
the	O
IPX	B-Protocol
socket	O
number	O
of	O
0x4003	O
was	O
used	O
,	O
on	O
the	O
server	O
side	O
the	O
socket	O
number	O
of	O
0x0451	O
.	O
</s>
<s>
The	O
NCP	O
PDU	B-Protocol
has	O
the	O
following	O
structure	O
:	O
</s>
<s>
Individual	O
requests	O
are	O
identified	O
by	O
the	O
Sequence	B-Protocol
Number	I-Protocol
(	O
modulo	O
256	O
)	O
.	O
</s>
<s>
Novell	B-Operating_System
Netware	I-Operating_System
servers	O
of	O
version	O
up	O
to	O
2.x	O
supported	O
up	O
to	O
255	O
connections	O
and	O
the	O
Connection	O
Number	O
occupied	O
only	O
1	O
octet	O
.	O
</s>
<s>
Number	O
Function	O
0	O
Login	O
User	O
Object	O
1	O
Change	O
User	O
Password	O
2	O
Map	O
User	O
to	O
Station	O
Set	O
3	O
Map	O
Object	O
to	O
Number	O
4	O
Map	O
Number	O
to	O
Object	O
5	O
Get	O
Station	O
's	O
Logged	O
Information	O
8	O
Map	O
Number	O
to	O
Group	O
Name	O
9	O
Get	O
Member	O
Set	O
M	O
of	O
Group	O
G	O
10	O
Enter	O
Login	O
Area	O
12	O
Verify	O
Network	O
Serial	O
Number	O
13	O
Log	O
Network	O
Message	O
14	O
Get	O
Disk	O
Utilization	O
15	O
Scan	O
File	B-Application
Information	O
16	O
Set	O
File	B-Application
Information	O
17	O
Get	O
File	B-Application
Server	I-Application
Information	O
18	O
Get	O
Network	O
Serial	O
Number	O
19	O
Get	O
Internet	O
Address	O
20	O
Login	O
Object	O
21	O
Get	O
Object	O
Connection	O
List	O
22	O
Get	O
Station	O
's	O
Logged	O
Information	O
23	O
Get	O
Encryption	O
Key	O
24	O
Login	O
Object	O
Encrypted	O
31	O
Get	O
Connection	O
List	O
from	O
Object	O
50	O
Create	O
Bindery	O
Object	O
51	O
Delete	O
Bindery	O
Object	O
52	O
Rename	O
Object	O
53	O
Get	O
Bindery	O
Object	O
Id	O
54	O
Get	O
Bindery	O
Object	O
Name	O
55	O
Scan	O
Bindery	O
Object	O
56	O
Change	O
Bindery	O
Object	O
Security	O
57	O
Create	O
Property	O
58	O
Delete	O
Property	O
59	O
Change	O
Bindery	O
Property	O
Security	O
60	O
Scan	O
Property	O
61	O
Read	O
Property	O
Value	O
62	O
Write	O
Property	O
Value	O
63	O
Verify	O
Bindery	O
Object	O
Password	O
64	O
Change	O
Bindery	O
Object	O
Password	O
65	O
Add	O
Bindery	O
Object	O
to	O
Set	O
66	O
Delete	O
Bindery	O
Object	O
from	O
Set	O
67	O
Is	O
Bindery	O
Object	O
In	O
Set	O
?	O
</s>
<s>
,	O
an	O
open-source	O
NCP	O
client	O
implementation	O
for	O
Linux	B-Application
.	O
</s>
<s>
Client	O
Service	O
for	O
NetWare	B-Operating_System
from	O
Microsoft	O
.	O
</s>
