github ssh 密钥名称

Question

I'm trying to configure git so I don't have to keep authenticating (and also learn a bit more about git).

I had previously been using password-based authentication, which is repetitive to keep typing in my passwords. I followed the steps (using windows) to set up SSH keys in github. I gave my key a specific name, anticipating that I will need more than one SSH key at some point. It doesn't make sense to always have id_rsa for github! I received the email that the key was successfully created, and I used git bash (because windows) to start the SSH client silently and added my private key. But running a git clone gave me this error:

git@github.com: Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

I then had the idea to try it with the default name ( id_rsa ), rather than my custom name, and of course it works. So my question is how do I avoid this? I don't want the default name to be reserved for github.

Answer 1

You can set up an ssh configuration file to tell the ssh command to use that specific key when connecting to github.

Create the file .ssh/config with the content:

Host github.com
  IdentityFile ~/.ssh/github_rsa_key

Assuming that you've named your private key ~/.ssh/github_rsa_key .

Now try connecting to github:

$ ssh git@github.com

You should see:

Hi <your github username>! You've successfully authenticated, but GitHub does not provide shell access.