1-6NTP service access-control rights from the highest to the lowest are peer, server, synchronization,and query. When a local NTP server receives an NTP request, it will perform an access-control rightmatch and will use the first matched right.The ntp-service access command only provides a minimal degree of security measure. A more secureway is to perform identity authentication.Refer to the ntp-service authentication enable command for related configuration.Examples# Configure the access right from the remote device in ACL 2076 to the local NTP server as peer. system-viewSystem View: return to User View with Ctrl+Z.[Sysname] ntp-service access peer 2076# Configure the access right from the remote device in ACL 2028 to the local NTP server as server. system-viewSystem View: return to User View with Ctrl+Z.[Sysname] ntp-service access server 2028ntp-service authentication enableSyntaxntp-service authentication enableundo ntp-service authentication enableViewSystem viewParametersNoneDescriptionUse the ntp-service authentication enable command to enable the NTP authentication.Use the undo ntp-service authentication enable command to disable the NTP authentication.By default, the NTP authentication is disabled.Refer to the ntp-service reliable authentication-keyid and ntp-service authentication-keyidcommands for related configuration.Examples# Enable the NTP authentication. system-viewSystem View: return to User View with Ctrl+Z.[Sysname] ntp-service authentication enable
