<s>
ZNC	B-Application
is	O
an	O
IRC	B-Protocol
network	I-Protocol
bouncer	O
or	O
BNC	O
.	O
</s>
<s>
It	O
can	O
detach	O
the	O
client	O
from	O
the	O
actual	O
IRC	B-Protocol
server	O
,	O
and	O
also	O
from	O
selected	O
channels	O
.	O
</s>
<s>
Multiple	O
clients	O
from	O
different	O
locations	O
can	O
connect	O
to	O
a	O
single	O
ZNC	B-Application
account	O
simultaneously	O
and	O
therefore	O
appear	O
under	O
the	O
same	O
nickname	O
on	O
IRC	B-Protocol
.	O
</s>
<s>
It	O
supports	O
Transport	B-Protocol
Layer	I-Protocol
Security	I-Protocol
connections	O
and	O
IPv6	B-Protocol
.	O
</s>
<s>
ZNC	B-Application
is	O
written	O
in	O
C++	B-Language
and	O
licensed	O
under	O
the	O
Apache-2.0	B-Application
license	O
.	O
</s>
<s>
Modules	O
can	O
be	O
written	O
in	O
Python	B-Language
,	O
Perl	B-Language
,	O
Tcl	B-Operating_System
,	O
or	O
C++	B-Language
.	O
</s>
<s>
Available	O
modules	O
comprise	O
logging	O
functionality	O
,	O
Blowfish	B-Algorithm
encryption	O
,	O
user	O
and	O
channel	O
management	O
,	O
away	O
functionality	O
,	O
a	O
partyline	O
and	O
more	O
.	O
</s>
<s>
ZNC	B-Application
also	O
supports	O
ident	O
spoofing	O
via	O
oidentd	B-Device
.	O
</s>
<s>
ZNC	B-Application
has	O
been	O
in	O
development	O
since	O
July	O
2004	O
as	O
an	O
alternative	O
to	O
psyBNC	O
and	O
new	O
releases	O
are	O
made	O
regularly	O
.	O
</s>
<s>
It	O
has	O
received	O
favorable	O
reviews	O
,	O
especially	O
in	O
comparison	O
to	O
psyBNC	O
,	O
and	O
has	O
an	O
active	O
community	O
on	O
IRC	B-Protocol
.	O
</s>
<s>
In	O
mid-2009	O
,	O
ZNC	B-Application
's	O
popularity	O
among	O
iPhone	B-Device
users	O
increased	O
after	O
notification	O
modules	O
for	O
Colloquy	B-Language
and	O
Growl	B-Operating_System
were	O
published	O
.	O
</s>
<s>
Since	O
2012	O
,	O
IRC	B-Protocol
clients	O
started	O
to	O
integrate	O
with	O
ZNC	B-Application
:	O
while	O
sending	O
channel	O
buffers	O
to	O
the	O
client	O
,	O
ZNC	B-Application
uses	O
a	O
timestamp	O
indicating	O
when	O
each	O
message	O
was	O
received	O
,	O
and	O
the	O
client	O
shows	O
this	O
instead	O
of	O
the	O
time	O
when	O
the	O
client	O
received	O
the	O
buffer	O
.	O
</s>
