<s>
Microsoft	B-General_Concept
Forefront	I-General_Concept
Unified	I-General_Concept
Access	I-General_Concept
Gateway	I-General_Concept
(	O
UAG	O
)	O
is	O
a	O
discontinued	O
software	B-Application
suite	I-Application
that	O
provides	O
secure	O
remote	O
access	O
to	O
corporate	O
networks	O
for	O
remote	O
employees	O
and	O
business	O
partners	O
.	O
</s>
<s>
Its	O
services	O
include	O
reverse	B-General_Concept
proxy	I-General_Concept
,	O
virtual	B-Application
private	I-Application
network	I-Application
(	O
VPN	B-Application
)	O
,	O
DirectAccess	B-Application
and	O
Remote	B-Protocol
Desktop	I-Protocol
Services	I-Protocol
.	O
</s>
<s>
UAG	O
was	O
released	O
in	O
2010	O
,	O
and	O
is	O
the	O
successor	O
for	O
Microsoft	B-General_Concept
Intelligent	I-General_Concept
Application	I-General_Concept
Gateway	I-General_Concept
(	O
IAG	O
)	O
which	O
was	O
released	O
in	O
2007	O
.	O
</s>
<s>
UAG	O
is	O
part	O
of	O
the	O
Microsoft	B-General_Concept
Forefront	I-General_Concept
offering	O
.	O
</s>
<s>
Unified	O
Access	O
Gateway	O
was	O
originally	O
developed	O
by	O
a	O
startup	O
company	O
named	O
Whale	B-General_Concept
Communications	I-General_Concept
in	O
Rosh	O
HaAyin	O
,	O
Israel	O
.	O
</s>
<s>
It	O
consisted	O
of	O
an	O
appliance	O
housing	O
a	O
512k	O
memory	B-Architecture
chip	O
that	O
toggled	O
connections	O
between	O
two	O
servers	O
via	O
a	O
SCSI	O
bus	O
.	O
</s>
<s>
In	O
the	O
90	O
's	O
and	O
early	O
2000	O
's	O
,	O
e-Gap	O
was	O
enhanced	O
to	O
provide	O
comprehensive	O
reverse	B-General_Concept
proxy	I-General_Concept
features	O
that	O
included	O
in-depth	O
filtering	O
of	O
inbound	O
traffic	O
to	O
ensure	O
the	O
security	O
of	O
the	O
web	O
servers	O
and	O
applications	O
it	O
protected	O
.	O
</s>
<s>
In	O
2002	O
,	O
the	O
market	O
evolved	O
into	O
offering	O
more	O
comprehensive	O
SSL	O
VPN	B-Application
features	O
.	O
</s>
<s>
On	O
18	O
May	O
2006	O
,	O
Microsoft	O
announced	O
that	O
it	O
would	O
be	O
acquiring	O
Whale	B-General_Concept
Communications	I-General_Concept
.	O
</s>
<s>
Following	O
this	O
acquisition	O
,	O
the	O
product	O
was	O
renamed	O
Microsoft	B-General_Concept
Intelligent	I-General_Concept
Application	I-General_Concept
Gateway	I-General_Concept
Server	O
2007	O
.	O
</s>
<s>
Instead	O
of	O
using	O
the	O
Air	O
Gap	O
as	O
the	O
security	O
barrier	O
,	O
IAG	O
used	O
Microsoft	O
's	O
ISA	B-Application
Server	I-Application
firewall	O
product	O
.	O
</s>
<s>
In	O
2009	O
,	O
with	O
the	O
release	O
of	O
Service	O
Pack	O
2	O
for	O
IAG	O
,	O
the	O
product	O
was	O
also	O
offered	O
directly	O
to	O
the	O
public	O
from	O
Microsoft	O
in	O
the	O
form	O
of	O
a	O
virtual	O
appliance	O
(	O
a	O
first	O
of	O
its	O
kind	O
form-factor	O
for	O
Microsoft	O
)	O
-	O
a	O
pre-installed	O
VHD	O
which	O
could	O
be	O
run	O
on	O
Hyper-V	O
or	O
VMware	B-Operating_System
Workstation	I-Operating_System
.	O
</s>
<s>
In	O
April	O
2008	O
,	O
Microsoft	O
announced	O
that	O
the	O
next	O
generation	O
of	O
IAG	O
will	O
be	O
named	O
Forefront	B-General_Concept
Unified	I-General_Concept
Access	I-General_Concept
Gateway	I-General_Concept
(	O
UAG	O
)	O
.	O
</s>
<s>
UAG	O
's	O
core	O
new	O
functionality	O
centered	O
on	O
its	O
DirectAccess	B-Application
gateway	O
.	O
</s>
<s>
DirectAccess	B-Application
,	O
launched	O
with	O
Windows	O
7	O
,	O
was	O
Microsoft	O
's	O
visionary	O
always	O
on	O
VPN	B-Application
which	O
allowed	O
both	O
VPN	B-Application
access	O
and	O
continuous	O
endpoint	O
management	O
and	O
control	O
.	O
</s>
<s>
At	O
its	O
launch	O
,	O
UAG	O
was	O
the	O
only	O
solution	O
to	O
publishing	O
DirectAccess	B-Application
making	O
the	O
product	O
an	O
integral	O
part	O
of	O
the	O
Windows	O
7	O
strategy	O
.	O
</s>
<s>
Microsoft	O
UAG	O
provides	O
secure	O
socket	O
layer	O
(	O
SSL	O
)	O
virtual	B-Application
private	I-Application
network	I-Application
(	O
VPN	B-Application
)	O
,	O
a	O
Web	O
application	O
firewall	O
,	O
and	O
endpoint	O
security	O
management	O
(	O
for	O
compliance	O
and	O
security	O
)	O
that	O
enable	O
access	O
control	O
,	O
authorization	O
,	O
and	O
content	O
inspection	O
for	O
a	O
wide	O
variety	O
of	O
line-of-business	O
applications	O
.	O
</s>
<s>
Included	O
are	O
customized	O
granular	O
access	O
policy	O
and	O
security	O
capabilities	O
for	O
Microsoft	O
Exchange	O
Server	O
(	O
2003	O
,	O
2007	O
and	O
2010	O
)	O
,	O
Microsoft	O
SharePoint	O
Portal	O
Server	O
(	O
2003	O
,	O
2007	O
and	O
2010	O
)	O
,	O
Microsoft	B-Protocol
Terminal	I-Protocol
Services	I-Protocol
and	O
Citrix	O
Presentation	O
Server	O
.	O
</s>
<s>
With	O
the	O
current	O
release	O
of	O
UAG	O
with	O
Update	O
2	O
,	O
the	O
product	O
also	O
offers	O
support	O
for	O
many	O
third-party	O
systems	O
such	O
as	O
Linux	B-Application
,	O
Macintosh	B-Device
and	O
iPhone	B-Device
.	O
</s>
<s>
The	O
product	O
also	O
supports	O
Mozilla	B-Application
Firefox	I-Application
.	O
</s>
<s>
UAG	O
performs	O
particularly	O
well	O
in	O
providing	O
a	O
portal	O
for	O
web	O
applications	O
,	O
such	O
as	O
web-based	B-Protocol
email	I-Protocol
and	O
intranets	B-General_Concept
,	O
but	O
it	O
also	O
provides	O
full	O
SSL	O
VPN	B-Application
network	O
access	O
using	O
either	O
ActiveX	B-Application
(	O
when	O
using	O
Internet	O
Explorer	O
)	O
or	O
Java	B-Language
components	O
(	O
when	O
using	O
Firefox	B-Application
,	O
Opera	B-Application
,	O
non	O
Windows	O
client	O
such	O
as	O
Red	O
Hat	O
or	O
Mac	O
OS	O
)	O
.	O
</s>
<s>
These	O
components	O
can	O
also	O
perform	O
end-point	O
compliance	O
checks	O
before	O
allowing	O
access	O
,	O
to	O
test	O
for	O
attributes	O
on	O
the	O
PC	O
such	O
as	O
domain	O
name	O
,	O
antivirus	B-Application
definitions	O
date	O
or	O
running	O
processes	O
.	O
</s>
<s>
The	O
inclusion	O
of	O
DirectAccess	B-Application
with	O
UAG	O
has	O
been	O
a	O
big	O
influence	O
on	O
its	O
success	O
,	O
as	O
DirectAccess	B-Application
provides	O
a	O
very	O
seamless	O
VPN-like	O
integration	O
and	O
is	O
in	O
high-demand	O
by	O
many	O
organizations	O
.	O
</s>
<s>
DirectAccess	B-Application
is	O
part	O
of	O
Windows	O
,	O
but	O
UAG	O
provides	O
a	O
very	O
user-friendly	O
configuration	O
interface	O
for	O
it	O
,	O
making	O
it	O
easier	O
to	O
configure	O
for	O
administrators	O
.	O
</s>
<s>
UAG	O
also	O
adds	O
two	O
additional	O
components	O
-	O
DNS64	O
and	O
NAT64	B-Protocol
,	O
which	O
make	O
deploying	O
DirectAccess	B-Application
in	O
an	O
existing	O
network	O
easier	O
,	O
without	O
the	O
need	O
to	O
deploy	O
IPv6	B-Protocol
.	O
</s>
<s>
The	O
product	O
can	O
be	O
installed	O
on	O
Windows	B-Device
Server	I-Device
2008	I-Device
R2	I-Device
.	O
</s>
