<s>
Bitvise	B-Application
is	O
a	O
proprietary	O
secure	O
remote	O
access	O
software	O
developed	O
for	O
Windows	B-Application
and	O
available	O
as	O
a	O
client	O
and	O
server	O
.	O
</s>
<s>
The	O
software	O
is	O
based	O
on	O
the	O
Secure	B-Protocol
Shell	I-Protocol
(	O
SSH	B-Protocol
)	O
protocol	O
,	O
which	O
provides	O
a	O
secure	O
channel	O
over	O
an	O
insecure	O
network	O
in	O
a	O
client-server	O
architecture	O
.	O
</s>
<s>
Bitvise	B-Application
software	O
implements	O
version	O
2	O
of	O
the	O
Secure	B-Protocol
Shell	I-Protocol
(	O
SSH	B-Protocol
)	O
protocol	O
,	O
SFTP	B-Protocol
versions	O
3	O
,	O
4	O
,	O
and	O
6	O
,	O
as	O
well	O
as	O
SCP	B-Protocol
and	O
FTPS	B-Protocol
according	O
to	O
publicly	O
available	O
standards	O
.	O
</s>
<s>
The	O
software	O
is	O
developed	O
and	O
published	O
by	O
Bitvise	B-Application
Limited	O
.	O
</s>
<s>
The	O
first	O
released	O
product	O
was	O
Bitvise	B-Application
SSH	B-Protocol
Server	I-Protocol
,	O
then	O
named	O
WinSSHD	O
,	O
in	O
2001	O
,	O
and	O
it	O
was	O
shortly	O
followed	O
by	O
Tunnelier	O
,	O
now	O
Bitvise	B-Application
SSH	B-Protocol
Client	I-Protocol
.	O
</s>
<s>
Both	O
the	O
server	O
and	O
client	O
work	O
with	O
all	O
desktop	O
and	O
server	O
versions	O
of	O
Windows	B-Application
and	O
allow	O
for	O
remote-based	O
access	O
using	O
a	O
tool	O
like	O
WinVNC	B-Protocol
.	O
</s>
<s>
They	O
provide	O
a	O
GUI	O
as	O
well	O
as	O
command-line	O
interface	O
to	O
support	O
SFTP	B-Protocol
,	O
SSH	B-Protocol
,	O
SCP	B-Protocol
,	O
and	O
VPN	B-Application
using	O
the	O
TCP/IP	O
tunneling	O
feature	O
.	O
</s>
<s>
The	O
software	O
among	O
other	O
supports	O
GSSAPI-enabled	O
Kerberos	B-Protocol
5	I-Protocol
exchange	O
and	O
NTLM	O
Kerberos	B-Protocol
5	I-Protocol
user	O
authentication	O
.	O
</s>
