Mailinglist Archive: opensuse (807 mails)

[Marcus Meissner <meissner@xxxxxxx>]

On Thu, Apr 15, 2010 at 06:43:52AM +0200, Hans Witvliet wrote:
> perhaps a simple question, but it kept me awake all night and google
> didn't help either..
>
> Most services have a ssl/tls equivalent, like http, imap, ldap.
> But how about an ssl/tls version of ntp?
>
> How can i know for certain that a time server is who he claims to be?
>
> Or am i looking for something impossible??
> There are situations where a gps-receiver is not feasable.

NTP does have cryptography support, authentication, symmetric and assymetric
encryption.

I have however not set it up personally, but there is "ntp-doc" with HTML
docu in /usr/share/doc/packages/ntp-doc/ and likely web documentation how to do 
it.

Ciao, Marcus
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