---
id: "primary-and-secondary-server"
kind: "glossary-term"
title: "主服务器和辅助服务器"
language: "zh-Hans"
category: "DNS与技术基础"
updated: "2026-10-10T12:00:00Z"
canonical: "https://tldlog.com/zh/cihui/zhu-fuwuqi-fuzhu-fuwuqi/"
translations:
  en: "https://tldlog.com/glossary/primary-and-secondary-server/"
  es: "https://tldlog.com/es/glosario/servidor-primario-servidor-secundario/"
  de: "https://tldlog.com/de/glossar/primaerer-sekundaerer-nameserver/"
  fr: "https://tldlog.com/fr/glossaire/serveur-primaire-serveurs-secondaires/"
  it: "https://tldlog.com/it/glossario/server-primario-server-secondari/"
  pt-BR: "https://tldlog.com/pt/glossario/servidor-primario-servidores-secundarios/"
  ru: "https://tldlog.com/ru/glossariy/pervichnyy-vtorichnyy-servery/"
---

# 主服务器和辅助服务器

区域权威域名服务器的两种角色。主服务器保存进行修改的那份副本。辅助服务器从主服务器获取副本，并以同样方式应答查询。用户无法区分它们。把辅助服务器分布在不同网络中，可以在其中一台出故障时保证域名仍可访问。

## 相关术语

- [权威服务器](https://tldlog.com/zh/cihui/quanwei-fuwuqi/)
- [区域传送](https://tldlog.com/zh/cihui/quyu-chuansong/)
- [域名服务器](https://tldlog.com/zh/cihui/yuming-fuwuqi/)
- [SOA记录](https://tldlog.com/zh/cihui/soa-jilu/)
- [TSIG](https://tldlog.com/zh/cihui/tsig/)