DBA必备的NTP 时间服务器详细配置使用手册

codedba

2019

46页

285次

2021-04-20

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1 NTP ······················································································································································· 1-1

1.1 NTP 简介 ··········································································································································· 1-1

1.1.1 NTP 应用场合 ························································································································· 1-1

1.1.2 NTP 基本工作原理 ·················································································································· 1-1

1.1.3 NTP 网络结构及时钟层数 ······································································································· 1-2

1.1.4 NTP 的工作模式 ······················································································································ 1-3

1.1.5 NTP 安全功能 ························································································································· 1-4

1.1.6 协议规范 ································································································································· 1-6

1.2 NTP 配置限制和指导 ························································································································· 1-6

1.3 NTP 配置任务简介 ····························································································································· 1-6

1.4 开启 NTP 服务 ··································································································································· 1-7

1.5 配置不同工作模式下的 NTP ·············································································································· 1-7

1.5.1 配置客户端/服务器模式下的 NTP ··························································································· 1-7

1.5.2 配置对等体模式下的 NTP ······································································································· 1-8

1.5.3 配置广播模式下的 NTP ··········································································································· 1-8

1.5.4 配置组播模式下的 NTP ··········································································································· 1-9

1.6 配置本地时钟作为参考时钟 ············································································································· 1-10

1.7 配置 NTP 服务的访问控制权限········································································································ 1-10

1.8 配置 NTP 验证功能 ·························································································································· 1-11

1.8.1 配置客户端/服务器模式的 NTP 验证功能 ············································································· 1-11

1.8.2 配置对等体模式的 NTP 验证功能 ························································································· 1-12

1.8.3 配置广播模式的 NTP 验证功能 ····························································································· 1-14

1.8.4 配置组播模式的 NTP 验证功能 ····························································································· 1-15

1.9 控制 NTP 报文的收发 ······················································································································ 1-17

1.9.1 配置 NTP 报文的源地址 ········································································································ 1-17

1.9.2 关闭接口接收 NTP 报文功能································································································· 1-18

1.9.3 配置动态会话的最大数目 ······································································································ 1-18

1.9.4 配置 NTP 报文的 DSCP 优先级 ···························································································· 1-19

1.10 控制 NTP 同步时的日志和告警信息的打印 ··················································································· 1-19

1.11 NTP 显示和维护 ···························································································································· 1-20

1.12 NTP 典型配置举例 ························································································································· 1-20

1.12.1 配置 NTP 客户端/服务器模式······························································································ 1-20

1.12.2 配置 IPv6 NTP 客户端/服务器模式 ····················································································· 1-21

1.12.3 配置 NTP 对等体模式 ········································································································· 1-23

1.12.4 配置 IPv6 NTP 对等体模式 ································································································· 1-24

1.12.5 配置 NTP 广播模式 ············································································································· 1-26

1.12.6 配置 NTP 组播模式 ············································································································· 1-28

1.12.7 配置 IPv6 NTP 组播模式 ····································································································· 1-30

1.12.8 配置带验证功能的 NTP 客户端/服务器模式 ········································································ 1-34

1.12.9 配置带验证功能的 NTP 广播模式 ······················································································· 1-35

2 SNTP ···················································································································································· 2-1

2.1 SNTP 简介 ········································································································································· 2-1

2.1.1 SNTP 的工作模式 ··················································································································· 2-1

2.1.2 协议规范 ································································································································· 2-1

2.2 SNTP 配置限制和指导······················································································································· 2-1

2.3 SNTP 配置任务简介 ·························································································································· 2-1

2.4 开启 SNTP 服务 ································································································································ 2-2

2.5 为 SNTP 客户端指定 NTP 服务器 ····································································································· 2-2

2.6 配置 SNTP 验证功能 ························································································································· 2-3

2.7 控制 SNTP 同步时的日志和告警信息的打印 ····················································································· 2-4

2.8 SNTP 显示和维护 ······························································································································ 2-4

2.9 SNTP 典型配置举例 ·························································································································· 2-4

2.9.1 SNTP 基本组网配置举例 ········································································································ 2-4

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