文档章节

Generating SSH keys

冰珊孤雪
 冰珊孤雪
发布于 2015/09/06 20:38
字数 915
阅读 93
收藏 1

Generating SSH keys

SSH keys are a way to identify trusted computers, without involving passwords. The steps below will walk you through generating an SSH key and adding the public key to your GitHub account.

We recommend that you regularly review your SSH keys list and revoke any that haven't been used in a while.

Tip: If you have GitHub for Windows installed, you can use it to clone repositories and not deal with SSH keys. It also comes with the Git Bash tool, which is the preferred way of running git commands on Windows.

Step 1: Check for SSH keys

First, we need to check for existing SSH keys on your computer. Open Git Bash and enter:

ls -al ~/.ssh# Lists the files in your .ssh directory, if they exist

Check the directory listing to see if you already have a public SSH key. By default, the filenames of the public keys are one of the following:

  • id_dsa.pub

  • id_ecdsa.pub

  • id_ed25519.pub

  • id_rsa.pub

If you see an existing public and private key pair listed (for example id_rsa.pub and id_rsa) that you would like to use to connect to GitHub, you can skip Step 2 and go straight to Step 3.

Tip: If you receive an error that ~/.ssh doesn't exist, don't worry! We'll create it in Step 2.

Step 2: Generate a new SSH key

  1. With Git Bash still open, copy and paste the text below. Make sure you substitute in your GitHub email address.

    ssh-keygen -t rsa -b 4096 -C "your_email@example.com"# Creates a new ssh key, using the provided email as a label# Generating public/private rsa key pair.
  2. We strongly suggest keeping the default settings as they are, so when you're prompted to "Enter a file in which to save the key", just press Enter to continue.

    # Enter file in which to save the key (/Users/you/.ssh/id_rsa): [Press enter]
  3. You'll be asked to enter a passphrase.

    # Enter passphrase (empty for no passphrase): [Type a passphrase]# Enter same passphrase again: [Type passphrase again]

    Tip: We strongly recommend a very good, secure passphrase. For more information, see "Working with SSH key passphrases".

  4. After you enter a passphrase, you'll be given the fingerprint, or id, of your SSH key. It will look something like this:

    # Your identification has been saved in /Users/you/.ssh/id_rsa.# Your public key has been saved in /Users/you/.ssh/id_rsa.pub.# The key fingerprint is:# 01:0f:f4:3b:ca:85:d6:17:a1:7d:f0:68:9d:f0:a2:db your_email@example.com

Step 3: Add your key to the ssh-agent

To configure the ssh-agent program to use your SSH key:

If you have GitHub for Windows installed, you can use it to clone repositories and not deal with SSH keys. It also comes with the Git Bash tool, which is the preferred way of running git commands on Windows.

  1. Ensure ssh-agent is enabled:

    • If you are using Git Bash, turn on ssh-agent:

      # start the ssh-agent in the backgroundssh-agent -s# Agent pid 59566
    • If you are using another terminal prompt, such as msysgit, turn on ssh-agent:

      # start the ssh-agent in the backgroundeval $(ssh-agent -s)# Agent pid 59566
  2. Add your SSH key to the ssh-agent:

    ssh-add ~/.ssh/id_rsa

Tip: If you didn't generate a new SSH key in Step 2, and used an existing SSH key instead, you will need to replace id_rsain the above command with the name of your existing private key file.

Step 4: Add your SSH key to your account

To configure your GitHub account to use your SSH key:

Copy the SSH key to your clipboard. If your key is named id_dsa.pub, id_ecdsa.pub orid_ed25519.pub, then change the filename below from id_rsa.pub to the one that matches your key:

clip < ~/.ssh/id_rsa.pub# Copies the contents of the id_rsa.pub file to your clipboard

Warning: It's important to copy the key exactly without adding newlines or whitespace.

Add the copied key to GitHub:

  1. Settings icon in the user barIn the top right corner of any page, click your profile photo, then click Settings.

  2. SSH keysIn the user settings sidebar, click SSH keys.

  3. SSH Key buttonClick Add SSH key.

  4. In the Title field, add a descriptive label for the new key. For example, if you're using a personal Mac, you might call this key "Personal MacBook Air".

  5. The key fieldPaste your key into the "Key" field.

  6. The Add key buttonClick Add key.

  7. Confirm the action by entering your GitHub password.

Step 5: Test the connection

To make sure everything is working, you'll now try to SSH into GitHub. When you do this, you will be asked to authenticate this action using your password, which is the SSH key passphrase you created earlier.

  1. Open Git Bash and enter:

    ssh -T git@github.com# Attempts to ssh to GitHub
  2. You may see this warning:

    # The authenticity of host 'github.com (207.97.227.239)' can't be established.# RSA key fingerprint is 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48.# Are you sure you want to continue connecting (yes/no)?

    Verify the fingerprint in the message you see matches the following message, then type yes:

    # Hi username! You've successfully authenticated, but GitHub does not# provide shell access.
  3. If the username in the message is yours, you've successfully set up your SSH key!

    If you receive a message about "access denied," you can read these instructions for diagnosing the issue.

    If you're switching from HTTPS to SSH, you'll now need to update your remote repository URLs. For more information, see Changing a remote's URL.

本文转载自:https://help.github.com/articles/generating-ssh-keys/

冰珊孤雪
粉丝 7
博文 28
码字总数 4129
作品 0
苏州
私信 提问
git 在mac上使用git clone时每次需要输入密码的解决方案

Generating a new SSH key and adding it to the ssh-agent MAC WINDOWS LINUX After you've checked for existing SSH keys, you can generate a new SSH key to use for authentication, t......

张宏亮1982
2018/05/13
0
0
使用 scp 在 Linux 主机之间复制文件/目录

当两台Linux主机之间要互传文件时可使用SCP命令来实现,建立信任关系之后可不输入密码。 把你的本地主机用户的 ssh公匙文件复制到远程主机用户的~/.ssh/authorized_keys文件中 假设本地主机l...

鉴客
2012/05/18
4.1K
1
ssh免密登录

[root@aniu-saas-1 ~]# ssh-keygen -t rsa -P '' Generating public/private rsa key pair. Enter file in which to save the key (/root/.ssh/id_rsa): Created directory '/root/.ssh'. Yo......

zuowuhan
2017/11/15
0
0
Linux SSH建立信任关系

为了方便管理,特别是在机器众多的时候,免密码登录系统就显得很需要了。 建立信任关系其实很简单…… 模拟情况,A机器想要免密码用ssh登录B机器: 1、生成A机器的公私钥匙对,英文原文是这样...

行走在路上
2014/07/09
0
0
How to ssh on Debian

How to ssh on Debian installation >>> apt-get install ssh PS: This is a convenient way to install both the OpenSSH client and the OpenSSH sever. More details: aptitude show ssh ......

gurdy
2011/09/10
0
0

没有更多内容

加载失败,请刷新页面

加载更多

Hadoop集群搭建-05安装配置YARN

Hadoop集群搭建-04安装配置HDFS Hadoop集群搭建-03编译安装hadoop Hadoop集群搭建-02安装配置Zookeeper Hadoop集群搭建-01前期准备 先保证集群5台虚拟机, nn1 nn2 s1 s2 s3 hadoop 是 是 是 ...

虚拟世界的懒猫
48分钟前
5
0
聊聊spring cloud的ConsulServiceRegistry

序 本文主要研究一下spring cloud的ConsulServiceRegistry ServiceRegistry spring-cloud-commons-2.1.2.RELEASE-sources.jar!/org/springframework/cloud/client/serviceregistry/ServiceR......

go4it
昨天
5
0
Nextjs 学习 —— hooks

22

lemos
昨天
2
0
如何在spring mvc restful接口中定制化类型转换和格式化

1.痛点 最近小胖哥搞了个小程序,有几个spring mvc 接口传递了时间,时间用java 8 time 相关的api 来直接接收: 当使用根据ISO 8601格式化的参数向任何这些方法发送POST请求时,报出了如下异...

码农小胖哥
昨天
17
0
docker日志监控

日志处理机制 我们先来了解一下docker日志处理的机制,当启动一个容器的时候,它其实是docker daemon的一个子进程,docker daemon可以拿到你容器里面进程的标准输出,拿到标准输出后,它会通...

爱宝贝丶
昨天
3
0

没有更多内容

加载失败,请刷新页面

加载更多

返回顶部
顶部