权限错误github(无法识别ssh密钥)

Question

从另一个(本地)存储库推送到github帐户后,我似乎失去了对github帐户的权限.我现在收到以下错误:

git push 
Permission denied (publickey).fatal: 
The remote end hung up unexpectedly

然后,我按照以下步骤重新生成密钥:

ssh-keygen
Set up an ssh on my account for this laptop, using id_rsa.pub

但是,这是不成功的.当我尝试以下代码建议时,我收到以下错误:

ssh-add -l
Could not open a connection to your authentication agent.

有什么想法吗？

Answer 1

我按照这个分步说明解决了这个问题:

第1步:检查SSH密钥

$ cd ~/.ssh
# Checks to see if there is a directory named ".ssh" in your user directory
# If it says "No such file or directory" skip to step 3. Otherwise continue to step 2.

第2步:备份并删除现有的SSH密钥

$ ls
# Lists all the subdirectories in the current directory
# config  id_rsa  id_rsa.pub  known_hosts

$ mkdir key_backup
# Makes a subdirectory called "key_backup" in the current directory

$ cp id_rsa* key_backup
# Copies the id_rsa keypair into key_backup

$ rm id_rsa*
# Deletes the id_rsa keypair

第3步:生成新的SSH密钥

$ ssh-keygen -t rsa -C "your_email@youremail.com"
# Creates a new ssh key using the provided email

# Generating public/private rsa key pair.
# Enter file in which to save the key (/home/you/.ssh/id_rsa):    
# Enter passphrase (empty for no passphrase): [Type a passphrase]
# Enter same passphrase again: [Type passphrase again]    
# Your identification has been saved in /home/you/.ssh/id_rsa.
# Your public key has been saved in /home/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@youremail.com

第4步:将SSH密钥添加到GitHub

$ sudo apt-get install xclip
# Downloads and installs xclip

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

然后,转到hithub,并执行:

1. 转到您的帐户设置
2. 单击左侧栏中的"SSH密钥"
3. 点击"添加SSH密钥"
4. 将您的密钥粘贴到"密钥"字段中
5. 点击"添加密钥"
6. 输入您的GitHub密码确认操作

第5步:测试一切

$ ssh -T git@github.com
# Attempts to ssh to github

好的,你会看到

Hi username! You've successfully authenticated, but GitHub does not
# provide shell access.

否则(它发生在我身上),你会看到

Agent admitted failure to sign using the key.
# debug1: No more authentication methods to try.
# Permission denied (publickey).

要解决这个问题

$ ssh-add
# Enter passphrase for /home/you/.ssh/id_rsa: [tippy tap]
# Identity added: /home/you/.ssh/id_rsa (/home/you/.ssh/id_rsa)

原始信息

https://help.github.com/articles/generating-ssh-keys

https://help.github.com/articles/error-agent-admitted-failure-to-sign

Answer 2

如果您已经在 ~/.ssh 中有一个公钥（并且已经将该密钥添加到您的 github 帐户），您可能只需要再次将您的密钥加载到 SSH 代理中。

要测试 SSH 代理是否具有密钥，请键入ssh-add -l If 结果为：

The agent has no identities.

然后只需像这样将您的密钥加载到 SSH 代理中：

ssh-add ~/.ssh/github_rsa

（github_rsa 是我机器上存储的 SSH 密钥的名称。这个文件也可以命名为：id_rsa）

之后，您必须输入密钥的密码（这可能是您登录 github 的密码）。如果您收到这样的消息：

Identity added: /Users/name/.ssh/github_rsa (/Users/cpotzinger/.ssh/github_rsa)