s6-networking
Software
skarnet.org
 The s6-taiclockd program 
s6-taiclockd is a server for the
TAICLOCK protocol.
It's a long-lived program listening to the network and answering
to TAICLOCK clients such as s6-taiclock.
 Interface 
     s6-taiclockd [ -i ip ] [ -p port ]
 -  s6-taiclockd listens to all network addresses on UDP
port 4014. 
 
 -  Whenever it receives a TAICLOCK request, it answers
immediately with the TAI time given by its local system clock. 
 
 -  It runs until killed by a signal. 
 
 Options 
 -  -i ip : bind to ip instead
of all available addresses. ip can be IPv4 or IPv6. 
 
 -  -p port : bind to port
port instead of 4014.