Sntp Authentication-Keyid - H3C S5830V2 Series Command Reference Manual

Usage guidelines
You need to enable SNTP authentication in networks that require time synchronization security to make
sure that SNTP clients are only synchronized to authenticated NTP servers.
To authenticate an NTP server, set an authentication key and specify it as a trusted key.
Examples
# Enable SNTP authentication.
<Sysname> system-view
[Sysname] sntp authentication enable
Related commands

sntp authentication-keyid

•
sntp reliable authentication-keyid
•
sntp authentication-keyid
Use the sntp authentication-keyid command to set an SNTP authentication key.
Use the undo sntp authentication-keyid command to remove the SNTP authentication key.
Syntax
sntp authentication-keyid keyid authentication-mode md5 { cipher | simple } value
undo sntp authentication-keyid keyid
Default
No SNTP authentication key is set.
Views
System view
Predefined user roles
network-admin
Parameters
keyid: Key ID to identify an authentication key, in the range of 1 to 4294967295.
authentication-mode md5 value: Uses the MD5 algorithm for key authentication.
simple: Sets the key as a simple text key.
cipher: Sets the key as a cipher text key.
value: Key value. It is a case-insensitive string of 1 to 73 characters in cipher text, and a case-insensitive
string of 1 to 32 characters in simple text.
Usage guidelines
You need to enable SNTP authentication in networks that require time synchronization security to make
sure that SNTP clients are only synchronized to authenticated NTP servers.
Configure the same key ID and key value on the SNTP client and NTP server. Otherwise, the SNTP client
cannot be synchronized to the NTP server.After you configure an SNTP authentication key, use the sntp
reliable authentication-keyid command to set it as a trusted key. The key automatically changes to
untrusted after you delete the key. In this case, you do not need to execute the undo sntp-service reliable
authentication-keyid command.
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