[ntp:questions] Why DNS servers should not be NTP servers

2014-06-18 Thread kartik . unix
Please let me know your thoughts on the above statement. I am encouraging the use of atomic time NTP server devices rather than DNS servers to serve time. I need to justify, not using DNS servers, to serve time. Please advise. ___ questions mailing

Re: [ntp:questions] Why DNS servers should not be NTP servers

2014-06-18 Thread mike cook
Hi, Generalizations such as that have practically no meaning. All I can say is IT DEPENDS. You need to know more about the servers in question. You need to ask: Where will the DNS servers get their time? Are the DNS servers heavily loaded, even intermittently? What

Re: [ntp:questions] Why DNS servers should not be NTP servers

2014-06-18 Thread Jochen Bern
On -10.01.-28163 20:59, kartik.u...@gmail.com wrote: I am encouraging the use of atomic time NTP server devices rather than DNS servers to serve time. I need to justify, not using DNS servers, to serve time. Please advise. Well the *obvious* argument would be that you want your DNS servers

Re: [ntp:questions] NTP aaccount password

2014-06-18 Thread Martin Burnicki
Rob wrote: Martin Burnicki martin.burni...@meinberg.de wrote: Hi, sorry for stepping in so late, but I've been on vacation with limited internet access. garrettbrian1...@gmail.com schrieb: I have been trying to install the Meinberg NTP build for Windows and the install is going through, yet

Re: [ntp:questions] Why DNS servers should not be NTP servers

2014-06-18 Thread William Unruh
On 2014-06-18, kartik.u...@gmail.com kartik.u...@gmail.com wrote: Please let me know your thoughts on the above statement. I am encouraging the use of atomic time NTP server devices rather than DNS servers to serve time. I need to justify, not using DNS servers, to serve time. Please

Re: [ntp:questions] Why DNS servers should not be NTP servers

2014-06-18 Thread Harlan Stenn
Others have made good points, and I'll just add that DNSSEC requires good time. -- Harlan Stenn st...@ntp.org http://networktimefoundation.org - be a member! ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] NTP Pool Server Costs me $40/mo in Bandwidth--is there a suggested way to rate-limit?

2014-06-18 Thread E-Mail Sent to this address will be added to the BlackLists
http://en.wikipedia.org/wiki/NTP_server_misuse_and_abuse brian.cun...@gmail.com wrote: Is there a suggested way to rate-limit queries by broken clients? Firewall rules? {Depends how broken the remote client is, sometimes this makes them hammer more, if you can get you ISP to block them

Re: [ntp:questions] About use of PPS in NTP sync

2014-06-18 Thread E-Mail Sent to this address will be added to the BlackLists
jthul...@gmail.com wrote: Does it mean that if I set the minpoll and maxpoll values to 4 If you do that for external servers, they may consider that abuse. For _your_ / _your_companies_ servers it can be anything you want. For _your_ reference clocks whatever works best. -- E-Mail Sent to

Re: [ntp:questions] Why DNS servers should not be NTP servers

2014-06-18 Thread E-Mail Sent to this address will be added to the BlackLists
kartik.u...@gmail.com wrote: Please let me know your thoughts on the above statement. I am encouraging the use of atomic time NTP server devices rather than DNS servers to serve time. I need to justify, not using DNS servers, to serve time. Please advise. _Your_ DNS servers can certainly be

Re: [ntp:questions] ntp-dev: PPS is a falseticker?

2014-06-18 Thread E-Mail Sent to this address will be added to the BlackLists
Get the fudge time(s) right, prefer the PPS, increase mindist. -- E-Mail Sent to this address blackl...@anitech-systems.com will be added to the BlackLists. ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] ntp-dev: PPS is a falseticker?

2014-06-18 Thread Paul
On Wed, Jun 18, 2014 at 4:04 PM, E-Mail Sent to this address will be added to the BlackLists Null@blacklist.anitech-systems.invalid wrote: prefer the PPS, The point was that you can't prefer the PPS driver. While this driver can discipline the time and frequency relative to the PPS source,

Re: [ntp:questions] NTP Pool Server Costs me $40/mo in Bandwidth--is there a suggested way to rate-limit?

2014-06-18 Thread Brian Inglis
On 2014-06-18 13:32, E-Mail Sent to this address will be added to the BlackLists wrote: http://en.wikipedia.org/wiki/NTP_server_misuse_and_abuse brian.cun...@gmail.com wrote: Is there a suggested way to rate-limit queries by broken clients? Firewall rules? {Depends how broken the remote