ntpd error

Vivek J. Patankar list307 at gmail.com
Mon May 28 03:20:32 UTC 2007


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




More information about the fedora-list mailing list