Permission denied with mutiple github accounts

Question

I'm trying to set up personal git account along with my work account. I followed this guide https://www.freecodecamp.org/news/manage-multiple-github-accounts-the-ssh-way-2dadc30ccaca/ and my ~/.ssh/config is (some-name is my user name for personal github account)

host github.com
   Hostname github.com
   User git
   AddKeysToAgent yes
   UseKeychain yes
   IdentityFile ~/.ssh/id_rsa
host some-name.github.com
   Hostname github.com
   Identityfile ~/.ssh/id_rsa_personal

After this, I ran ssh-add ~/.ssh/id_rsa_personal which was successful.

However, when I do ssh -T some-name.github.com, it fails with somename@github.com: Permission denied (publickey) The work account is working fine. I also uploaded newly generated public key on github account.

My git config --list shows user.name=some-name.

update: based on VonC's response, I was able to get ssh -T some-name.github.com to run successfully. However, I am still getting following error when I try to push code into a repo in github account.

ERROR: Permission to some-name/docker-react.git denied to User.
fatal: Could not read from remote repository.

I checked the ssh keys uploaded on github, and it is correct.

Answer 1

首先，将用户 git 添加到您的第二个配置中：

host some-name.github.com
   Hostname github.com
   Identityfile ~/.ssh/id_rsa_personal
   User git

然后OP agyeya必须origin相应地修改远程 URL：

git remote set-url origin git@some-name.github.com:some-name/docker-react.git

如果这仍然不起作用（假设公钥已注册到您的 GitHub 帐户）：

尝试创建第一个没有关联密码的密钥，以对其进行测试。
这将避免 ssh-agent 需求（同样，用于测试）

请参阅“凭据中私钥的正确格式是什么”，以使用旧的 PEM 格式创建私钥：

ssh-keygen -m PEM -t rsa -P "" -f ~/.ssh/id_rsa_personal