Meinberg LANTIME M600 Technical Information download pdf (Page 62)

NTP keys and certificates

The fourth and fifth section of the “Security“ page allow you to create the needed

crypto keys and certificates for secure NTP operation (please see NTP authentication

below).

The function “Generate new NTP public key“ is creating a new self-signed certificate

for the timeserver, which is automatically marked as “trusted“.

Important note: This certificate is depending on the hostname of your LANTIME, it

is mandatory to re-create the certificate after changing the hostname. The certificates

are build with the internal command “ntp-keygen -T” (ntp-keygen is part of the in-

stalled NTP suite). Your LANTIME is using the /etc/ntp/ directory for storing its

private and public keys (this is called the “keysdir”). Please refer to the chapter “NTP

Autokey” for further information (below).

The two options “Show NTP MD5 key“ and “Edit NTP MD5 keys“ allow you to

manage the symmetric keys used by NTP. More about that can be found in the

chapter about symmetric keys (below).

SNMP Parameter

In the last Section all parameters for SNMP can be configured. More information

you can find later in this manual.

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Meinberg LANTIME M600 Technical Information Page 62