错误：代理承认签名失败 - GitHub 文档

在 Linux 计算机上尝试 SSH 连接 GitHub.com 时，您可能会在终端看到以下信息

$ ssh -vT git@github.com
> ...
> Agent admitted failure to sign using the key.
> debug1: No more authentication methods to try.
> Permission denied (publickey).

欲了解更多细节，请参阅 Canonical Launchpad 上的此问题报告。

解决方案

您可以通过使用 ssh-add 将密钥加载到 SSH 代理中来修复此错误

# start the ssh-agent in the background
$ eval "$(ssh-agent -s)"
> Agent pid 59566
$ ssh-add
> Enter passphrase for /home/YOU/.ssh/id_rsa: [tippy tap]
> Identity added: /home/YOU/.ssh/id_rsa (/home/YOU/.ssh/id_rsa)

如果您的密钥没有默认文件名（/.ssh/id_rsa），则需要将该路径传递给 ssh-add

# start the ssh-agent in the background
$ eval "$(ssh-agent -s)"
> Agent pid 59566
$ ssh-add ~/.ssh/my_other_key
> Enter passphrase for /home/YOU/.ssh/my_other_key: [tappity tap tap]
> Identity added: /home/YOU/.ssh/my_other_key (/home/YOU/.ssh/my_other_key)