中国互联网络信息中心&互联网域名管理技术国家工程实验室 目录 专业术语表....................................................................................................................................... 2 摘要 .................................................................................................................................................. 3 1、 前言....................................................................................................................................... 1 2、 域名服务安全状况............................................................................................................... 3 2.1 根域名服务......................................................................................................................... 3 2.1.1 简介 .......................................................................................................................... 3 2.1.2 系统软件 .................................................................................................................. 4 2.1.3 协议支持 .................................................................................................................. 4 2.1.4 服务性能 .................................................................................................................. 5 2.2 顶级域名服务..................................................................................................................... 7 2.2.1 简介 .......................................................................................................................... 7 2.2.2 系统软件 .................................................................................................................. 7 2.2.3 协议支持 .................................................................................................................. 8 2.2.4 服务性能 .................................................................................................................. 9 2.3 二级及以下权威域名服务 ............................................................................................... 10 2.3.1 简介 ........................................................................................................................ 10 2.3.2 系统软件 ................................................................................................................ 11 2.3.3 协议支持 ................................................................................................................ 11 2.3.4 服务性能 ................................................................................................................ 12 2.3.5 重点权威域名服务 ................................................................................................ 13 2.4 递归域名服务................................................................................................................... 16 2.4.1 简介 ........................................................................................................................ 16 2.4.2 系统软件 ................................................................................................................ 17 2.4.3 协议支持 ................................................................................................................ 17 2.4.4 服务性能 ................................................................................................................ 18 2.4.5 主要递归域名服务 ................................................................................................ 19 域名服务安全总体评估 ..................................................................................................... 23 3.1 权威域名服务............................................................................................................. 23 3.2 递归域名服务............................................................................................................. 24 4、 我国域名服务体系安全态势分析 ..................................................................................... 26 3、 中国互联网络信息中心&互联网域名管理技术国家工程实验室 专业术语表 缩略语 英文全称 AS ccTLD CDN DNS DNSSEC DDoS EDNS0 gTLD IANA ICANN Autonomous System 自治系统 Country Code Top Level Domain 国家与地区顶级域名 Content Delivery Network 内容分发网络 Domain Name System 域名系统 DNS Security Extensions 域名系统安全扩展 Distributed Denial of Service 分布式拒绝服务攻击 Extension Mechanisms for DNS Version 0 DNS的扩展名机制 General Top Level Domain 通用顶级域名 Internet Assigned Numbers Authority 互联网数字分配机构 Internet Corporation for Assigned Names and 互联网名称与数字地址分配 Numbers 机构 Internet Protocol 网络之间互联的协议 Internet Protocol version 4 互联网协议第四版本 Internet Protocol version 6 互联网协议第六版本 Internet Software Consortium 互联网系统协会