配置 NTP (CLI)

1. 在 configuration services ntp 下，使用 authkey 命令编辑授权：

   hostname:configuration services ntp> authkey
   hostname:configuration services ntp authkey>
   

2. 在此上下文中，可使用 create 命令添加新密钥：

   hostname:configuration services ntp authkey> create
   hostname:configuration services ntp authkey-000 (uncommitted)> get
                           keyno = (unset)
                            type = (unset)
                             key = (unset)
   hostname:configuration services ntp authkey-000 (uncommitted)> set keyno=1
                           keyno = 1 (uncommitted)
   hostname:configuration services ntp authkey-000 (uncommitted)> set type=A 
                            type = A (uncommitted)
   hostname:configuration services ntp authkey-000 (uncommitted)> set key=coconuts
                             key = ******** (uncommitted)
   hostname:configuration services ntp authkey-000 (uncommitted)> commit
   hostname:configuration services ntp authkey> 

3. 要通过 CLI 将验证密钥与服务器相关联，应将 serverkeys 属性设置为一系列值，其中的每个值是要与 servers 属性中对应的服务器相关联的一个密钥。

   如果服务器不使用验证，应将对应的服务器密钥设置为 0。例如，要使用上面创建的密钥验证服务器 "gefilte" 和 "carp"：

   hostname:configuration services ntp> set servers=gefilte,carp
                         servers = gefilte,carp (uncommitted)
   hostname:configuration services ntp> set serverkeys=1,1
                      serverkeys = 1,1 (uncommitted)
   hostname:configuration services ntp> commit
   hostname:configuration services ntp>

4. 要将验证密钥与服务器相关联，请将 serverkeys 属性设置为一系列值，其中的每个值是要与 servers 属性中对应的服务器相关联的一个密钥。

   如果服务器不使用验证，应将对应的服务器密钥设置为 0。例如，要使用上面创建的密钥验证服务器 "gefilte" 和 "carp"：

   hostname:configuration services ntp> set servers=gefilte,carp
                         servers = gefilte,carp (uncommitted)
   hostname:configuration services ntp> set serverkeys=1,1
                      serverkeys = 1,1 (uncommitted)
   hostname:configuration services ntp> commit
   hostname:configuration services ntp>

5. 要用密钥 1 验证服务器 "gefilte"、用密钥 2 验证服务器 "carp"，并用密钥 3 验证服务器 "dory"：

   hostname:configuration services ntp> set servers=gefilte,carp,dory
                         servers = gefilte,carp,dory (uncommitted)
   hostname:configuration services ntp> set serverkeys=1,2,3
                      serverkeys = 1,2,3 (uncommitted)
   hostname:configuration services ntp> commit
   hostname:configuration services ntp>

6. 要用密钥 1 验证服务器 "gefilte" 和 "carp"，并另外设置一个未经验证的 NTP 服务器 "dory"，请执行以下操作：

   hostname:configuration services ntp> set servers=gefilte,carp,dory
                         servers = gefilte,carp,dory (uncommitted)
   hostname:configuration services ntp> set serverkeys=1,1,0
                      serverkeys = 1,1,0 (uncommitted)
   hostname:configuration services ntp> commit
   hostname:configuration services ntp>