[ntp:questions] Re: abuse or bug ?
Henk Penning
henkp at cs.uu.nl
Fri Jan 28 23:47:53 UTC 2005
In <cte0qc$kpp$1 at dewey.udel.edu> "David L. Mills" <mills at udel.edu> writes:
>Henk,
>
>Can you confirm the version number of the apparently abusive client? In
>testing here we occasionally have broken test versions, but these are
>never intended to escape the local test environment and should never
>have been put up for public grab.
>
>The client you highlight is not reachable from here for ping or ntpq. If
>it was reachable by ping but not for ntpq and not returning a ICMP
>destination port unreachable, I would suspect a Netgear client.
Dave,
Via network staff at northwestern.edu and cs.northwestern.edu I contacted
the guy who maintains the box [s-birrer (at) northwestern edu] ;
He gave me these specs:
.... I'm using plain out of the box ntp software on a Linux Gentoo
running on a SunBlade. ...
client : 129.105.100.183 (in cs.northwestern.edu)
hardware : Sun, SunBlade 150
operating system :
Linux gandalf 2.4.26-sparc-r2 #14 Wed Sep 22 15:27:12 CDT 2004 sparc64
sun4u TI UltraSparc IIe (Hummingbird) GNU/Linux
ntp : ntp 4.2.0-r2
config :
server pool.ntp.org
driftfile /var/lib/ntp/ntp.drift
restrict default notrust nomodify
restrict 127.0.0.1
He sent me some diagnostics:
sempi at gandalf sempi $ ntpdc -c pee -c loo -c sysi
remote local st poll reach delay offset disp
=======================================================================
=doei.cs.uu.nl 129.105.100.183 16 64 0 0.00000 0.000000 0.00000
offset: 0.000000 s
frequency: 0.000 ppm
poll adjust: 0
watchdog timer: 69165 s
system peer: 0.0.0.0
system peer mode: unspec
leap indicator: 11
stratum: 16
precision: -19
root distance: 0.00000 s
root dispersion: 1.03746 s
reference ID: [73.78.73.84]
reference time: 00000000.00000000 Thu, Feb 7 2036 0:28:16.000
system flags: auth monitor ntp kernel stats
jitter: 0.000000 s
stability: 0.000 ppm
broadcastdelay: 0.003998 s
authdelay: 0.000000 s
sempi at gandalf sempi $ ntpq -p
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
This is all the info I have.
>Dave
regards.
Henk Penning
--
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Henk P. Penning, Computer Systems Group R Uithof CGN-A232 _/ \_
Dept of Computer Science, Utrecht University T +31 30 253 4106 / \_/ \
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