<s>
Phex	B-Language
is	O
a	O
peer-to-peer	O
file	O
sharing	O
client	O
for	O
the	O
gnutella	B-Protocol
network	O
,	O
released	O
under	O
the	O
terms	O
of	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
,	O
so	O
Phex	B-Language
is	O
free	B-Application
software	I-Application
.	O
</s>
<s>
Phex	B-Language
is	O
based	O
on	O
Java	B-Language
SE	I-Language
5.0	O
or	O
later	O
.	O
</s>
<s>
Phex	B-Language
supports	O
most	O
of	O
the	O
recent	O
features	O
of	O
the	O
gnutella	B-Protocol
network	O
.	O
</s>
<s>
Additionally	O
it	O
enables	O
the	O
creation	O
of	O
private	O
networks	O
over	O
the	O
internet	O
,	O
has	O
a	O
powerful	O
search	O
result	O
filter	O
,	O
shows	O
client	O
country	O
flags	O
,	O
and	O
can	O
export	O
the	O
list	O
of	O
shared	O
files	O
into	O
multiple	O
formats	O
,	O
some	O
of	O
which	O
can	O
also	O
be	O
read	O
out	O
and	O
downloaded	O
directly	O
by	O
another	O
Phex	B-Language
.	O
</s>
<s>
Together	O
with	O
Swarming	O
,	O
segmented	O
file	O
transfer	O
,	O
and	O
the	O
Download	O
Mesh	O
this	O
makes	O
downloads	O
as	O
efficient	O
and	O
safe	O
as	O
BitTorrent	B-Protocol
downloads	O
,	O
yet	O
completely	O
decentralized	O
by	O
design	O
.	O
</s>
<s>
FURI	O
was	O
an	O
early	O
gnutella	B-Protocol
client	O
written	O
by	O
William	O
W	O
.	O
Wong	O
and	O
released	O
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
.	O
</s>
<s>
The	O
software	O
was	O
notable	O
at	O
the	O
time	O
of	O
its	O
release	O
for	O
being	O
written	O
entirely	O
in	O
Java	B-Language
.	O
</s>
<s>
The	O
software	O
was	O
capable	O
of	O
running	O
on	O
Java	B-Language
1.1	O
as	O
long	O
as	O
the	O
user	O
downloaded	O
external	O
Swing	O
libraries	O
.	O
</s>
<s>
If	O
these	O
libraries	O
were	O
unavailable	O
,	O
Java	B-Language
1.2	O
was	O
required	O
.	O
</s>
<s>
The	O
author	O
eventually	O
stopped	O
maintaining	O
the	O
software	O
,	O
resulting	O
in	O
users	O
migrating	O
to	O
other	O
clients	O
like	O
LimeWire	B-Application
.	O
</s>
<s>
In	O
April	O
2001	O
Konrad	O
Haenel	O
forked	B-Application
the	O
rarely	O
updated	O
gnutella	B-Protocol
client	O
FURI	O
to	O
form	O
Phex	B-Language
.	O
</s>
<s>
While	O
he	O
participated	O
in	O
the	O
Phex	B-Language
project	O
initially	O
,	O
he	O
left	O
in	O
late	O
2001	O
.	O
</s>
<s>
The	O
project	O
member	O
Gregor	O
K	O
.	O
continued	O
to	O
develop	O
Phex	B-Language
and	O
is	O
the	O
lead	O
developer	O
today	O
.	O
</s>
<s>
Early	O
versions	O
of	O
Phex	B-Language
were	O
released	O
simply	O
as	O
a	O
java	B-Language
jar	B-Language
file	I-Language
,	O
limiting	O
their	O
ease	O
of	O
use	O
on	O
some	O
platforms	O
such	O
as	O
the	O
Mac	O
OS	O
.	O
</s>
<s>
MacPhex	O
was	O
an	O
alternative	O
version	O
made	O
available	O
on	O
the	O
Phex	B-Language
website	O
and	O
supported	O
by	O
macXster	O
.	O
</s>
<s>
It	O
wrapped	O
Phex	B-Language
in	O
a	O
double	O
click-able	O
application	O
and	O
occasionally	O
added	O
small	O
additional	O
features	O
unique	O
to	O
the	O
Mac	O
OS	O
.	O
</s>
<s>
Since	O
2006	O
,	O
an	O
anonymous	O
version	O
of	O
Phex	B-Language
has	O
been	O
available	O
:	O
I2Phex	O
,	O
which	O
uses	O
the	O
I2p	B-Protocol
network	O
to	O
hide	O
the	O
IP	B-Protocol
address	I-Protocol
of	O
the	O
users	O
of	O
this	O
gnutella	B-Protocol
client	O
.	O
</s>
<s>
The	O
future	O
roadmap	O
is	O
to	O
integrate	O
the	O
I2Phex	O
code	O
into	O
one	O
of	O
the	O
next	O
Phex	B-Language
versions	O
.	O
</s>
<s>
Rather	O
than	O
use	O
the	O
public	O
IP	O
network	O
,	O
I2Phex	O
uses	O
encrypted	O
tunnels	O
through	O
the	O
I2p	B-Protocol
privacy/encryption	O
network	O
.	O
</s>
<s>
Traffic	O
is	O
mixed	O
with	O
other	O
network	O
traffic	O
(	O
see	O
mix	B-Protocol
network	I-Protocol
)	O
through	O
a	O
garlic	B-Protocol
routing	I-Protocol
system	O
,	O
making	O
it	O
difficult	O
for	O
outside	O
observers	O
to	O
identify	O
originators	O
or	O
the	O
recipients	O
of	O
a	O
file	O
through	O
traffic	O
analysis	O
.	O
</s>
<s>
Often	O
only	O
searching	O
(	O
or	O
tracking	O
for	O
BitTorrent	B-Protocol
)	O
are	O
supported	O
.	O
</s>
<s>
Nodes	O
within	O
the	O
garlic	B-Protocol
routing	I-Protocol
system	O
could	O
refuse	O
to	O
route	O
file	O
sharing	O
traffic	O
.	O
</s>
<s>
LimeWire	B-Application
,	O
FrostWire	B-Protocol
,	O
gtk-gnutella	B-Language
,	O
and	O
Phex	B-Language
all	O
support	O
the	O
use	O
of	O
TLS	B-Protocol
to	O
encrypt	O
traffic	O
between	O
nodes	O
.	O
</s>
<s>
TLS	B-Protocol
is	O
not	O
anonymous	O
like	O
I2P	B-Protocol
,	O
however	O
,	O
it	O
does	O
prevent	O
ISPs	O
from	O
filtering	O
gnutella	B-Protocol
content	O
and	O
makes	O
it	O
more	O
difficult	O
to	O
trace	O
traffic	O
.	O
</s>
<s>
It	O
is	O
possible	O
to	O
use	O
Phex	B-Language
with	O
SOCKS5	B-Application
proxy	B-Application
.	O
</s>
<s>
Using	O
that	O
feature	O
it	O
is	O
possible	O
to	O
route	O
gnutella	B-Protocol
traffic	O
via	O
Tor	B-Application
and	O
then	O
to	O
Phex	B-Language
.	O
</s>
<s>
This	O
is	O
possible	O
by	O
using	O
SOCKS5	B-Application
cascading	O
proxy	B-Application
to	O
Tor	B-Application
client	O
.	O
</s>
<s>
Various	O
academic	O
studies	O
are	O
based	O
on	O
Phex	B-Language
:	O
</s>
