* Binand Sethumadhavan <[EMAIL PROTECTED]> [2006-06-27 16:25:14 +0200]:

>On 27/06/06, Ajitabh Pandey <[EMAIL PROTECTED]> wrote:
>>Although it should not be, but could my ISP be blocking NTP packets. 
>>Although when I run ntpdate, it is fine and does not give any errors. Any 
>>ideas on how do I check about the ISP blocking the NTPD ports.
>
>nmap does a good job of figuring out firewall blocks.
>
>nmap -sU -p 123 <wherever>

Yep, scanned my machine from outside the network and it was showing 123 open. 
Also scanned pool.ntp.org for 123 and again the same result. TCPDUMP also 
showed packets flowing, so nothing wrong in firewall. Revisited my ntp 
configuration file and found, hell lot of problems there. Fixed those, 
restarted ntpd and all was well within a minute. 

Thanks. 

Reagrds.
-- 
Ajitabh Pandey
http://www.ajitabhpandey.info/
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