On Fri, Nov 27, 2009 at 7:20 PM, Mike Connors <[email protected]> wrote:
> Denis Heidtmann wrote:
>> Could this indicate that either my dsl router or my ISP
>> (dslnorthwest.net) is blocking 123?
> It's possible, but seems unlikely. I was able to verify w. netcat that
> port 123 is open on the particular NTP server you couldn't connect to:
>
> r...@mc-goose:~# nc -vvzu 75.144.70.35 123 123
> splenda.rustytel.net [75.144.70.35] 123 (ntp) open
> splenda.rustytel.net [75.144.70.35] 123 (ntp) open
>  sent 0, rcvd 0
>
> Is another process already bound to port 123 =>lsof -i :123. You might
> need to install lsof or net-tools pkg.
>
> What happens when you run ntpdate w. -dv (debug verbose)?
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this is strange.  I cannot understand all the stuff, but:

sudo ntpdate -bdv 0.us.pool.ntp.org
27 Nov 19:22:10 ntpdate[26092]: ntpdate [email protected] Wed May 13
21:10:46 UTC 2009 (1)
transmit(72.167.54.201)
receive(72.167.54.201)
transmit(72.167.54.201)
receive(72.167.54.201)
transmit(72.167.54.201)
transmit(209.123.234.24)
receive(72.167.54.201)
transmit(72.167.54.201)
receive(209.123.234.24)
transmit(209.123.234.24)
receive(72.167.54.201)
transmit(72.167.54.201)
transmit(217.160.254.116)
receive(209.123.234.24)
transmit(209.123.234.24)
receive(217.160.254.116)
transmit(217.160.254.116)
receive(209.123.234.24)
transmit(209.123.234.24)
receive(217.160.254.116)
transmit(217.160.254.116)
receive(209.123.234.24)
transmit(209.123.234.24)
receive(217.160.254.116)
transmit(217.160.254.116)
receive(217.160.254.116)
transmit(217.160.254.116)
server 72.167.54.201, port 123
stratum 2, precision -20, leap 00, trust 000
refid [72.167.54.201], delay 0.11810, dispersion 0.00165
transmitted 4, in filter 4
reference time:    cebb13ac.2d064f47  Fri, Nov 27 2009 19:12:44.175
originate timestamp: cebb15f5.31525616  Fri, Nov 27 2009 19:22:29.192
transmit timestamp:  cebb15e2.ca89a88a  Fri, Nov 27 2009 19:22:10.791
filter delay:  0.11810  0.12831  0.12483  0.12495
         0.00000  0.00000  0.00000  0.00000
filter offset: 18.34937 18.35253 18.35070 18.35181
         0.000000 0.000000 0.000000 0.000000
delay 0.11810, dispersion 0.00165
offset 18.349377

server 209.123.234.24, port 123
stratum 2, precision -20, leap 00, trust 000
refid [209.123.234.24], delay 0.15459, dispersion 0.00047
transmitted 4, in filter 4
reference time:    cebb107f.7d3af0a1  Fri, Nov 27 2009 18:59:11.489
originate timestamp: cebb15f5.812c5277  Fri, Nov 27 2009 19:22:29.504
transmit timestamp:  cebb15e3.181d084e  Fri, Nov 27 2009 19:22:11.094
filter delay:  0.15817  0.16158  0.15459  0.15491
         0.00000  0.00000  0.00000  0.00000
filter offset: 18.34582 18.34911 18.34568 18.34573
         0.000000 0.000000 0.000000 0.000000
delay 0.15459, dispersion 0.00047
offset 18.345689

server 217.160.254.116, port 123
stratum 2, precision -20, leap 00, trust 000
refid [217.160.254.116], delay 0.15529, dispersion 0.00221
transmitted 4, in filter 4
reference time:    cebb155b.bdeb6c60  Fri, Nov 27 2009 19:19:55.741
originate timestamp: cebb15f5.b8ebf74b  Fri, Nov 27 2009 19:22:29.722
transmit timestamp:  cebb15e3.4cb039ef  Fri, Nov 27 2009 19:22:11.299
filter delay:  0.15529  0.15659  0.16766  0.16963
         0.00000  0.00000  0.00000  0.00000
filter offset: 18.34674 18.34533 18.35091 18.35058
         0.000000 0.000000 0.000000 0.000000
delay 0.15529, dispersion 0.00221
offset 18.346742

27 Nov 19:22:11 ntpdate[26092]: step time server 72.167.54.201 offset
18.349377 sec

Immediately running it with just -b fails!

pare...@r2d4:~$ sudo ntpdate -b 0.us.pool.ntp.org
27 Nov 19:23:05 ntpdate[26093]: no server suitable for synchronization found
pare...@r2d4:~$

 -d and -v  are debug and verbose.  Why would that work?

-Denis
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