Re: ntpd replacement (Was: Re: Import of DragonFly Mail Agent)

From: Joe Holden <lists_at_rewt.org.uk>
Date: Mon, 24 Feb 2014 11:33:02 +0000
On 24/02/2014 11:26, Joe Holden wrote:
> On 24/02/2014 11:18, Ollivier Robert wrote:
>> According to Joe Holden on Mon, Feb 24, 2014 at 11:13:23AM +0000:
>>> hm, I can't say I have noticed this as being a problem where I've
>>> used it, are there any scenarios where this is a showstopper?
>>
>> Non-support for auth is a concern, lack of NTPv4 protocol support is
>> another.  Base ntpd also include SNTP which is a lightweight NTPv3
>> client.
>>
> I suspect if you can't be reasonably sure about the integrity of your
> network traffic you have other problems anyway... one can run ntpd -s to
> get a similar function to ntpdate/sntp.
>
> But again, for 99% of installs as a client, auth and/or ntpv4 doesn't
> matter and much like sendmail/dma, one can always install ntp.org from
> ports if they require authentication (I've never seen it used).

The other point I should make here is that if you care that much about 
time security you shouldn't be contacting ntp servers over 3rd party 
networks anyway, at least not without some IP-level 
encryption/authentication, or use a source that can't easily be used as 
an attack surface, such as GPS/MSF etc.
Received on Mon Feb 24 2014 - 10:33:13 UTC

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