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Usage guidelines
You need to enable SNTP authentication in networks that require time synchronization security to
make sure SNTP clients are synchronized only to authenticated NTP servers.
Configure the same key ID and key 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.
You can set a maximum of128 keys by executing the command.
Examples
# Set an MD5 authentication key, with the key ID of
10
and key value of
BetterKey
. Input the key in
plain text.
<Sysname> system-view
[Sysname] sntp authentication enable
[Sysname]sntp authentication-keyid 10 authentication-mode md5 simple BetterKey
Related commands
sntp authentication enable
sntp reliable authentication-keyid
sntp enable
Use
sntp enable
to enable the SNTP service.
Use
undo sntp enable
to disable the SNTP service.
Syntax
sntpenable
undo sntpenable
Default
The SNTP service is disabled.
Views
System view
Predefined user roles
network-admin
Examples
# Enable the SNTP service.
<Sysname> system-view
[Sysname]sntpenable
