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--- | ||
layout: post | ||
title: "创建 ssh 密钥对" | ||
author: "Ronan" | ||
header-style: text | ||
tags: | ||
- docs | ||
--- | ||
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# 1.创建密钥对(此方法适用于从未创建过密钥对的本地主机) | ||
在终端输入以下命令: | ||
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``` | ||
ssh-keygen | ||
``` | ||
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之后一路回车,不出意外的话,看到以下画面,密钥(包含私钥和公钥,公钥以 .pub 结尾)就创建成功了 | ||
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对于 linux 和类 linux 系统,该密钥存放于 `~/.ssh/` ,可以通过 `ls ~/.ssh` 查看。 | ||
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# 2.创建多个密钥对 | ||
有时候可能会需要多个密钥对,但是又不想影响到之前已创建的密钥对 | ||
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``` | ||
ssh-keygen -t ed25519 -C "这是写注释" -f ~/.ssh/id_ed25519_new_name | ||
``` | ||
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`ssh-keygen`:这是一个用于生成、管理和转换 SSH 密钥的命令行工具。 | ||
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`-t ed25519`:指定要生成的密钥类型为 ed25519。这种类型的密钥被认为更安全,并且通常生成更快。 | ||
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`-C "这是写注释"`:这是一个注释(通常使用邮箱,但是我不喜欢),用于标识这个密钥的用途。 | ||
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`-f ~/.ssh/id_ed25519_new_name`:指定生成的密钥文件的存储路径和名称。在这里,密钥会被保存为 ~/.ssh/id_ed25519_new_name,私钥为 id_ed25519_new_name,而公钥则为 id_ed25519_new_name.pub。 | ||
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# 3. 配置 `~/.ssh/config` 文件(以 GitHub 为例) | ||
为了方便管理不同的 SSH 密钥,可以在 `~/.ssh/config` 文件中为每个密钥配置别名。打开并编辑 `~/.ssh/config` 文件,添加如下内容: | ||
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```bash | ||
# 默认 SSH 配置 | ||
Host github.com | ||
HostName ssh.github.com | ||
User git | ||
Port 443 | ||
IdentityFile ~/.ssh/id_ed25519 | ||
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# 为另一个服务或项目的 SSH 配置 | ||
Host github_new | ||
HostName ssh.github.com | ||
User git | ||
Port 443 | ||
IdentityFile ~/.ssh/id_ed25519_new_name | ||
``` | ||
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在这个例子中,`github_new` 是自定义的别名,用于指定不同的 SSH 密钥。当你使用该别名连接 GitHub 时,会使用 `~/.ssh/id_rsa_new` 这个密钥。 |