Re: [Ntp] Antw: Re: [EXT] Re: Secdir last call review of draft-ietf-ntp-mode-6-cmds-08
Harlan Stenn <stenn@nwtime.org> Sat, 20 June 2020 08:27 UTC
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To: Ulrich Windl <Ulrich.Windl@rz.uni-regensburg.de>, "ntp@ietf.org" <ntp@ietf.org>
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From: Harlan Stenn <stenn@nwtime.org>
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Date: Sat, 20 Jun 2020 01:27:18 -0700
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Subject: Re: [Ntp] Antw: Re: [EXT] Re: Secdir last call review of draft-ietf-ntp-mode-6-cmds-08
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On 6/15/2020 2:56 AM, Ulrich Windl wrote: >>>> Harlan Stenn <stenn@nwtime.org> schrieb am 15.06.2020 um 11:06 in Nachricht > <e952e58b-a0e6-98f3-9d90-04b2a5c1317c@nwtime.org>: > > [...] >>>> Please show me a working deployment of SNMP controlling NTP, and then >>>> please compare the number and quality of these deployments with those >>>> that do the same with ntpq. >>> >>> With the instability of mode 6 commands this is not a fair comparison IMHO. >> >> Please clarify "instability". > > I meant the fact that the names of the variables changed over time, despit of the fact that non of these variable names (and the format of their values) have ever been specified. If you want to write a MIB for those, you need a stable definition first. I believe I have mentioned the one case of this that I know of, way back when Dave overhauled things as part of his work on The Book. At that time, he changed "jitter" to "dispersion". Are you aware of others? >> >> And regardless, as I ask above, where do you propose the SNTP machinery I think that should have been s/SNTP/SNMP/ . >> would live? > > That's an independent question. One possibility would be that ntpd uses a kind of "common block" located in shared memory that another process could read from. When doing "dirty reads" any query would not affect ntpd; if you do locking (for "clean" reads), some interferences may happen. So far for the read-only operations. Chnage requests would be a bit more complicated, however. One still needs a specification for "what is where, and what does it look like." >> >> I've long advocated for improvements in the mode 6 setup. We have >> several scheduled for an upcoming release of the Reference Implementation. > > Where are those details? We work on them in the NTP Project, in collaboration with interested external folks. Happy to tell you more off-channel if you're interested. > Regards, > Ulrich -- Harlan Stenn <stenn@nwtime.org> http://networktimefoundation.org - be a member!
- [Ntp] Secdir last call review of draft-ietf-ntp-m… Daniel Franke via Datatracker
- Re: [Ntp] Secdir last call review of draft-ietf-n… Brian Haberman
- Re: [Ntp] Secdir last call review of draft-ietf-n… Harlan Stenn
- Re: [Ntp] Secdir last call review of draft-ietf-n… Karen O'Donoghue
- Re: [Ntp] Secdir last call review of draft-ietf-n… Harlan Stenn
- Re: [Ntp] Secdir last call review of draft-ietf-n… Brian Haberman
- Re: [Ntp] [EXT] Re: Secdir last call review of dr… Ulrich Windl
- Re: [Ntp] Secdir last call review of draft-ietf-n… Harlan Stenn
- Re: [Ntp] [EXT] Re: Secdir last call review of dr… Ulrich Windl
- Re: [Ntp] [EXT] Re: Secdir last call review of dr… Harlan Stenn
- [Ntp] Antw: Re: [EXT] Re: Secdir last call review… Ulrich Windl
- Re: [Ntp] Secdir last call review of draft-ietf-n… Brian Haberman
- Re: [Ntp] Antw: Re: [EXT] Re: Secdir last call re… Harlan Stenn
- Re: [Ntp] Secdir last call review of draft-ietf-n… Harlan Stenn
- Re: [Ntp] [EXT] Re: Secdir last call review of dr… Harlan Stenn