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Re: [Ntp] ntpv5 requirements

Hal Murray <halmurray@sonic.net> Tue, 14 February 2023 00:41 UTC

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In-Reply-To: Message from Miroslav Lichvar <mlichvar@redhat.com> of "Mon, 13 Feb 2023 17:06:30 +0100." <Y+pgBgc/5dJ9wtAP@localhost>
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Subject: Re: [Ntp] ntpv5 requirements
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mlichvar@redhat.com said:
> I would be curious to see what NTS-NTP to NTS-KE request ratio do the
> well-known NTS providers like Cloudflare and Netnod have.

I'm not sure any current statistics will be worth much tomorrow.  All it takes 
is one implementation to get shipped in a home router and all previous data 
will get swamped.

>From ntp1.glypnod.com:

NTS server recvs good:              281994
NTS server recvs w error:             5283

NTS KE serves good:                    736
NTS KE serves bad:                     457

On that box, it takes 3.5 ms of CPU for the good KE case.

Note that there are a lot of bad guys out there probing for services on non 
standard ports so they can try their password collection.  I think that's a 
constant background noise, not scaling with traffic.

---------

Speaking of statistics....

A while ago, we discussed how many old cookie-keys to save.  (NTPsec was only 
saving one old one.  I changed that to 9 old ones, 10 total.)

NTS decode cookies total:           282006
 NTS decode cookies current:        276303
 NTS decode cookies old:              5526  0-24 hours old
 NTS decode cookies old2:               29  24-48 hours
 NTS decode cookies older:             136  over 48 hours
 NTS decode cookies too old:            12  (or garbage)


-- 
These are my opinions.  I hate spam.

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