[time], wikis, and help for abusers

Brandon West brandon
Wed Apr 30 00:07:46 UTC 2008

Silly question, but say a company had 200 systems behind a NAT  
firewall. Reason would tell us that they use a NTP server of their  
own. However, we know not everyone understands NTP quite as well as we  
do. That being said, it's possible for 200 systems to be hitting the  
pool from the same source IP.  Heck, for awhile there I was providing  
time to almost all of Los Alamos National Labs.
Brandon West
blwest at mac.com
QOTD - You've got to pity New Mexico... so far from heaven and so  
close to Texas

On Apr 29, 2008, at 5:58 PM, Matt Wagner wrote:

> Hey all,
> I apologize in advance for sending multiple messages to the list...
> I've recently "graduated" from inattentively keeping my server in the
> pool to actively monitoring two servers in the pool, and have some
> questions as a result.
> I've noticed syncing to me every 32 seconds. I wouldn't have
> thought too much of it, but the IP just looked "odd" (actually,
> even....) and thus caught my eye. By dumb luck, I wound up looking at
> access stats for some of the servers in the pool that provide online
> stats, trying to see what sort of loads I'd get if I increased my
> bandwidth on the pool. And I saw the stats on ntp.dayww.net... Where
> is seemingly querying every 500ms. So I tried Googling the
> IP, and found that it shows up every 32 seconds on Wayne Schlitt's
> server as well. So now I'm left wondering how many of us it's
> affecting. It seems improbable to me that it's only syncing to the
> three of us, and I happen to have viewed the access stats of each
> today. I'm wondering if it's syncing to a huge number of hosts. The IP
> appears to be registered to omniti.com; edge.omniti.com is
> I wondered if there existed a good tutorial online that told people
> how to investigate and fix their NTP problems. I'm assuming that most
> of these abusive clients are the results of people who don't know how
> to configure NTP, and thus, even though it's their duty to fix their
> abusive clients, they probably would have no idea how. It'd be very
> helpful if there were a good tutorial, so I could just e-mail them,
> mention the problem, and point them at the tutorial. Jeffrey Goldberg
> has a good page at http://www.goldmark.org/netrants/ntp-abuse/ but it
> doesn't really address *how* a clueless admin can fix their servers.
> All of this got me thinking about something else... I've created a few
> small MediaWiki installs for various groups. Would there be interest
> in a "NTP Pool Wiki" type thing? I've got a webserver with the space
> if needed. (I'm aware of the support.ntp.org site, but haven't found
> it overly useful. I'd be more interested in a site about the pool, and
> maybe about configuring ntpd.) It seems that this mailing list is home
> to some of the people most-knowledgeable about NTP. I just don't want
> to create something that no one will use. (Nor do I want to step on
> toes if such a site exists and I've missed it!)
> -- Matt
> _______________________________________________
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> timekeepers at fortytwo.ch
> https://fortytwo.ch/mailman/cgi-bin/listinfo/timekeepers

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