<s>
Opsi	B-Protocol
(	O
open	O
PC	O
server	O
integration	O
)	O
is	O
a	O
software	O
distribution	O
and	O
management	O
system	O
for	O
Microsoft	B-Application
Windows	I-Application
clients	O
,	O
based	O
on	O
Linux	B-Application
servers	O
.	O
</s>
<s>
Opsi	B-Protocol
is	O
developed	O
and	O
maintained	O
by	O
uib	O
GmbH	O
from	O
Mainz	O
,	O
Germany	O
.	O
</s>
<s>
The	O
main	O
parts	O
of	O
Opsi	B-Protocol
are	O
open-source	B-Application
licensed	O
under	O
the	O
GNU	B-Application
Affero	I-Application
General	I-Application
Public	I-Application
License	I-Application
.	O
</s>
<s>
The	O
key	O
features	O
of	O
opsi	B-Protocol
are	O
:	O
</s>
<s>
Opsi	B-Protocol
supports	O
the	O
client	O
operating	O
systems	O
MS	B-Application
Windows	I-Application
XP	I-Application
,	O
Server	B-Application
2003	I-Application
,	O
Windows	B-Application
Vista	I-Application
,	O
Server	B-Device
2008	I-Device
,	O
Windows	B-Device
7	I-Device
,	O
Server	B-Device
2008R2	I-Device
,	O
Server	B-Device
2012	I-Device
,	O
Windows	B-Device
8.1	I-Device
,	O
Server	B-Device
2012	I-Device
R12	O
and	O
Windows	B-Operating_System
10	I-Operating_System
.	O
</s>
<s>
For	O
the	O
installation	O
of	O
an	O
opsi-server	O
there	O
are	O
packages	O
available	O
for	O
the	O
Linux	B-Application
distributions	O
Debian	O
,	O
Ubuntu	B-Operating_System
,	O
SLES	O
,	O
Univention	B-Application
Corporate	I-Application
Server	I-Application
,	O
CentOS	O
,	O
RHEL	O
and	O
OpenSuse	B-Operating_System
.	O
</s>
<s>
If	O
the	O
client	O
boots	O
via	O
PXE	B-Device
it	O
loads	O
a	O
boot	B-Operating_System
image	I-Operating_System
from	O
the	O
opsi-depotserver	O
.	O
</s>
<s>
This	O
bootimage	O
prepares	O
the	O
hard	O
disk	O
,	O
copies	O
the	O
required	O
installation	O
files	O
,	O
drivers	O
and	O
the	O
opsi	B-Protocol
client	O
agent	O
and	O
starts	O
finally	O
an	O
unattended	O
OS-Installation	O
.	O
</s>
<s>
Opsi	B-Protocol
uses	O
the	O
automatic	O
detection	O
of	O
the	O
necessary	O
drivers	O
for	O
PCI-	O
,	O
HD-Audio	O
-	O
and	O
USB-Devices	O
.	O
</s>
<s>
OS-installation	O
via	O
Disk	B-Application
image	I-Application
is	O
also	O
supported	O
.	O
</s>
<s>
For	O
the	O
automatic	O
software	O
distribution	O
some	O
software	O
,	O
the	O
opsi-client-agent	O
,	O
has	O
to	O
be	O
installed	O
on	O
each	O
client	O
.	O
</s>
<s>
Every	O
time	O
the	O
client	O
boots	O
the	O
opsi-client-agent	O
connects	O
to	O
the	O
opsi-server	O
and	O
asks	O
if	O
there	O
is	O
anything	O
to	O
install	O
(	O
default	O
)	O
.	O
</s>
<s>
If	O
this	O
shall	O
be	O
done	O
a	O
script	O
driven	O
installation	O
program	O
(	O
opsi-winst	O
)	O
starts	O
and	O
installs	O
the	O
required	O
software	O
on	O
the	O
client	O
.	O
</s>
<s>
To	O
integrate	O
a	O
new	O
software	O
packet	O
into	O
the	O
software	B-Application
deployment	I-Application
system	O
,	O
a	O
script	O
must	O
be	O
written	O
to	O
specify	O
the	O
installation	O
process	O
.	O
</s>
<s>
This	O
script	O
provides	O
all	O
the	O
information	O
on	O
how	O
this	O
software	O
packet	O
has	O
to	O
be	O
installed	O
silent	O
or	O
unattended	O
or	O
by	O
using	O
tools	O
like	O
AutoIt	B-Language
or	O
Autohotkey	B-Language
.	O
</s>
<s>
With	O
the	O
opsi-winst	O
steps	O
like	O
copy	O
files	O
or	O
edit	O
the	O
registry	B-Protocol
can	O
be	O
done	O
.	O
</s>
<s>
The	O
opsi-client-agent	O
can	O
also	O
be	O
triggered	O
by	O
other	O
events	O
or	O
via	O
push-installation	O
from	O
the	O
opsi-server	O
.	O
</s>
<s>
The	O
mechanism	O
of	O
the	O
software	B-Application
deployment	I-Application
can	O
also	O
be	O
used	O
to	O
deploy	O
software	O
patches	O
and	O
hotfixes	O
.	O
</s>
<s>
The	O
hardware	O
and	O
software	O
inventory	O
also	O
uses	O
the	O
opsi-client-agent	O
.	O
</s>
<s>
The	O
hardware	O
information	O
is	O
collected	O
via	O
calls	O
to	O
WMI	B-Library
while	O
the	O
software	O
information	O
is	O
gathered	O
from	O
the	O
registry	B-Protocol
.	O
</s>
<s>
The	O
inventory	O
data	O
are	O
sent	O
back	O
to	O
the	O
opsi-server	O
by	O
a	O
web	O
service	O
.	O
</s>
<s>
The	O
inventory	O
data	O
may	O
imported	O
via	O
a	O
web	O
service	O
to	O
a	O
CMDB	B-Application
e.g.	O
</s>
<s>
in	O
OTRS	B-Language
.	O
</s>
<s>
The	O
opsi	B-Protocol
License	O
Management	O
module	O
supports	O
the	O
administration	O
of	O
different	O
kinds	O
of	O
licenses	O
like	O
Retail	O
,	O
OEM	O
and	O
Volume	O
licenses	O
.	O
</s>
<s>
It	O
counts	O
the	O
licenses	O
that	O
are	O
used	O
with	O
the	O
software	B-Application
deployment	I-Application
.	O
</s>
<s>
Using	O
the	O
combination	O
of	O
the	O
License	O
Management	O
and	O
the	O
software	O
inventory	O
,	O
Software	B-Application
Asset	I-Application
Management	I-Application
reports	O
on	O
the	O
number	O
of	O
free	O
and	O
installed	O
licenses	O
can	O
be	O
generated	O
.	O
</s>
<s>
The	O
opsi-server	O
provides	O
the	O
following	O
services	O
:	O
</s>
<s>
The	O
data	O
can	O
be	O
stored	O
in	O
files	O
,	O
in	O
OpenLDAP	B-Language
or	O
in	O
a	O
MySQL	B-Application
Database	O
.	O
</s>
<s>
A	O
TFTP-Server	O
provides	O
the	O
boot	B-Operating_System
images	I-Operating_System
for	O
the	O
OS-Installations	O
.	O
</s>
<s>
A	O
DHCP-Server	O
may	O
be	O
integrated	O
in	O
the	O
opsi-server	O
.	O
</s>
<s>
For	O
managing	O
opsi	B-Protocol
a	O
graphical	O
user	O
interface	O
is	O
available	O
as	O
an	O
application	O
or	O
as	O
a	O
browser	O
Applet	B-Language
.	O
</s>
<s>
The	O
opsi	B-Protocol
core	O
features	O
are	O
open-source	B-Application
according	O
to	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
Version	O
3	O
and	O
are	O
free	O
of	O
charge	O
.	O
</s>
<s>
The	O
core	O
features	O
are	O
software	O
distribution	O
(	O
or	O
software	B-Application
deployment	I-Application
)	O
,	O
OS	O
deployment	O
and	O
hard	O
-	O
and	O
software-inventory	O
.	O
</s>
<s>
These	O
free	O
components	O
can	O
be	O
supplemented	O
with	O
closed	B-Application
source	I-Application
add-ons	O
that	O
require	O
the	O
payment	O
of	O
a	O
fee	O
.	O
</s>
<s>
Even	O
though	O
opsi	B-Protocol
is	O
open	O
source	O
,	O
there	O
are	O
some	O
components	O
which	O
are	O
not	O
for	O
free	O
at	O
the	O
moment	O
.	O
</s>
<s>
As	O
soon	O
as	O
the	O
development	O
of	O
a	O
co-funding	O
project	O
is	O
refinanced	O
,	O
the	O
component	O
will	O
be	O
part	O
of	O
the	O
free	O
opsi-version	O
and	O
can	O
be	O
used	O
free	O
of	O
charge	O
.	O
</s>
<s>
The	O
first	O
of	O
these	O
co-funding	O
Projects	O
was	O
the	O
opsi	B-Protocol
support	O
for	O
Windows	O
Vista/Windows	O
7	O
.	O
</s>
<s>
At	O
the	O
moment	O
(	O
January	O
2011	O
)	O
there	O
are	O
three	O
co-funding	O
projects	O
:	O
Treeview	O
builds	O
hierarchical	O
groups	O
of	O
clients	O
to	O
manage	O
;	O
MySQL	B-Application
as	O
backend	O
for	O
all	O
data	O
;	O
and	O
the	O
license	O
management	O
module	O
.	O
</s>
