How to Edit Hosts File on Linux

本文将深入探讨 Linux 中 `hosts` 文件的路径、结构、工作原理、常见用法、最佳实践及故障排查，帮助读者全面掌握这一系统工具。

Hosts 文件（全称“hostname resolution file”）是一个**纯文本配置文件**，用于将 IP 地址映射到主机名（hostname），实现本地 hostname 解析。 它是操作系统中最早的 hostname 解析机制之一，甚至早于 DNS（域名系统）出现。

In the Linux operating system, the host file path plays a crucial role in network configuration and system management. The host file, commonly known as `/etc/hosts`, is a simple text-based file that maps hostnames to IP addresses.

在 Linux 系统中， hosts 文件通常位于 /etc/ 目录下，其完整路径为 /etc/hosts。 这个目录是系统中存放系统配置文件的地方，因此 hosts 文件作为系统级别的网络配置文件，也被放置在此目录中。

Edit the hosts file on Linux to manually map hostnames and domains to local and public IP addresses. Read this short tutorial to learn how.

In this comprehensive guide, we‘ll dive into the history of the hosts file, its format and usage, some relevant examples, and security best practices – equipping you with the knowledge to harness the simplicity and flexibility of local hostnam

Learn how to view and edit a host file location in Linux with our latest easy-to-follow guide, or get our system admins to do it for you.