John DeDourek wrote:
Vivek J. Patankar wrote:
Keep in mind that you need to open port 123 TCP & UDP for it to work.
I was having problems with time synchronization in servers in a DMZ
and opening just 123 TCP didn't work.
In fact, ntp normally uses UDP port 123. The last time I looked,
it did NOT use TCP port 123 at all. Therefore, I suggest that you
should NOT open TCP port 123.
/etc/services lists both port 123, TCP & UDP as the port for NTP.
But SpeedGuide (http://www.speedguide.net/ports.php) lists only UDP. I
checked the RFC for NTP (1119) and it mentions UDP only.
Seems like that information in /etc/services is misleading. What can be
done to get it corrected? Bugzilla against the 'setup' package perhaps?
--
Regards
विवेक ज. पाटणकर (Vivek J. Patankar)
Registered Linux User #374218
Fedora Core release 6 (Zod)
Linux 2.6.19-1.2911.6.4.fc6 X86_64
