[ntp:questions] Re: abuse or bug ?

Ronan Flood ronan at noc.ulcc.ac.uk
Mon Jan 31 22:04:49 UTC 2005


henkp at cs.uu.nl (Henk Penning) wrote:

>   Sorry to bother you some more; here is a 1 PPS client that
>   responds to ping, ntpdc and ntpq:
> 
>     83.140.64.206
> 
>   2179540 packets in the last 613 hours.
> 
> % ntpq 83.140.64.206
> ntpq> pee
>      remote           refid      st t when poll reach   delay   offset  jitter
> ==============================================================================
>  doei.cs.uu.nl   .RSTR.          16 u    -   64    0    0.000    0.000 4000.00

Mmmhmm ...

% ntpdc -n 83.140.64.206
ntpdc> reslist
   address          mask            count        flags
=====================================================================
0.0.0.0         0.0.0.0           2182891  notrust, nomodify  <************
83.140.64.206   255.255.255.255         0  ntpport, interface, ignore
83.140.80.1     255.255.255.255         0  ntpport, interface, ignore
127.0.0.1       255.255.255.255         0  none
127.0.0.1       255.255.255.255         0  ntpport, interface, ignore
::              ::                      0  none

ntpdc> monlist
remote address          port local address      count m ver code avgint  lstint
===============================================================================
128.86.16.20           38981 83.140.64.206         12 7 2     84    207       0
131.211.80.155           123 83.140.64.206    2182845 4 4     84      1       0
131.211.80.9           51229 83.140.64.206         23 6 2     84     25    3228
209.237.227.194         3586 83.140.64.206         14 7 2     84      9    4222
83.83.6.100            35576 83.140.64.206          2 6 2     84      0  206366

ntpdc> sysstats
time since restart:     2209024
time since reset:       2209024
packets received:       2182902
packets processed:      0
current version:        2182850
previous version:       0
bad version:            0
access denied:          2182850  <****************
bad length or format:   0
bad authentication:     0
rate exceeded:          0

ntpdc> iostats
time since reset:     2209041
receive buffers:      9
free receive buffers: 9
used receive buffers: 9
low water refills:    0
dropped packets:      0
ignored packets:      0
received packets:     2182920
packets sent:         2183113
packets not sent:     8
interrupts handled:   2182918
received by int:      2182920


-- 
                      Ronan Flood <R.Flood at noc.ulcc.ac.uk>
                        working for but not speaking for
             Network Services, University of London Computer Centre
     (which means: don't bother ULCC if I've said something you don't like)



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