[ntp:questions] ntp-keygen IFF

Grzegorz Daniluk lin_g at o2.pl
Mon May 18 13:45:22 UTC 2009


Hi,
did anybody try to generate keys and certificate for IFF scheme using 
ntp-keygen, but outside the server that will use it ? or maybe it is not 
possible ?
E.g. I need to generate keys and signed certificate on my computer for 
another server (lets say whose hostname is 'A'). Then I tried like this:

ntp-keygen -T -I -s A -p serverpasswd
and then exporting group key:
ntp-keygen -e -q serverpasswd -p clientpasswd > group.key

after this I've sent created files (without group.key) to the server 'A' 
and used ntp-keygen and group.key to create keys on client as described 
on support.ntp.org

however, after running ntp on those machines (both stable ntp-4.2.4p7) 
with debugging (-d) option server A says:
May 18 13:41:22 A ntpd[74185]: report_event: err 
'bad_or_missing_certificate' (0x10d), no peer

and of course client fails to query server A.

When I've generated self-signed certificate and keys on the server A 
(then running ntp-keygen without '-s' option) everything works fine.

Thank you in advance,
Best Regards,
Grzegorz Daniluk




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