GitHubのSSH接続エラー

Question

前提・実現したいこと

GitHubにSSHで ssh -T [e-mail]コマンドを使用して接続しようとしたとことエラーがでて接続できませんでした。おそらくですが、GitHubに接続する際に使用しているキーが違うと思います。もしそうであった場合は使用キーの変更方法を教えて頂きたいです。よろしくお願いいたします

発生している問題・エラーメッセージ

キーを作成してGitHubに接続しようとすると以下のメッセージが表示されます

[e-mail]: Permission denied (publickey).

該当のソースコード

ファイル構成

Host github
  HostName github.com
  IdentityFile ~/.ssh/id_rsa_github
  User git

デバッグ情報 ssh -vT [e-mail]でデバッグ

UYserName@Mac-Pro .ssh % ssh -vT [e-mail]
OpenSSH_8.1p1, LibreSSL 2.7.3
debug1: Reading configuration data /Users/UserName/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 47: Applying options for *
debug1: Connecting to github.com port 22.
debug1: Connection established.
debug1: identity file /Users/UserName/.ssh/id_rsa type -1
debug1: identity file /Users/UserName/.ssh/id_rsa-cert type -1
debug1: identity file /Users/UserName/.ssh/id_dsa type -1
debug1: identity file /Users/UserName/.ssh/id_dsa-cert type -1
debug1: identity file /Users/UserName/.ssh/id_ecdsa type -1
debug1: identity file /Users/UserName/.ssh/id_ecdsa-cert type -1
debug1: identity file /Users/UserName/.ssh/id_ed25519 type 3
debug1: identity file /Users/UserName/.ssh/id_ed25519-cert type -1
debug1: identity file /Users/UserName/.ssh/id_xmss type -1
debug1: identity file /Users/UserName/.ssh/id_xmss-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_8.1
debug1: Remote protocol version 2.0, remote software version babeld-8b756cb2
debug1: no match: babeld-8b756cb2
debug1: Authenticating to github.com:22 as 'git'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: -
debug1: kex: server->client cipher: [e-mail] MAC: <implicit> compression: none
debug1: kex: client->server cipher: [e-mail] MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ssh-rsa -
debug1: Host 'github.com' is known and matches the RSA host key.
debug1: Found key in /Users/UserName/.ssh/known_hosts:4
debug1: rekey out after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey in after 134217728 blocks
debug1: Will attempt key: /Users/UserName/.ssh/id_rsa
debug1: Will attempt key: /Users/UserName/.ssh/id_dsa
debug1: Will attempt key: /Users/UserName/.ssh/id_ecdsa
debug1: Will attempt key: /Users/UserName/.ssh/id_ed25519 ED25519 SHA256:-
debug1: Will attempt key: /Users/UserName/.ssh/id_xmss
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],ssh-ed25519,ecdsa-sha2-nistp521,ecdsa-sha2-nistp384,ecdsa-sha2-nistp256,rsa-sha2-512,rsa-sha2-256,ssh-rsa,ssh-dss>
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Trying private key: /Users/UserName/.ssh/id_rsa
debug1: Trying private key: /Users/UserName/.ssh/id_dsa
debug1: Trying private key: /Users/UserName/.ssh/id_ecdsa
debug1: Offering public key: /Users/UserName/.ssh/id_ed25519 ED25519 SHA256:-
debug1: Authentications that can continue: publickey
debug1: Trying private key: /Users/UserName/.ssh/id_xmss
debug1: No more authentication methods to try.
[e-mail]: Permission denied (publickey).

試したこと

・GitHuibでキーの貼り直し、確認
・configファイルの作成、記述
・known_hostsのfingerprint情報の削除

Answer 1

[e-mail]: Permission denied (publickey).

お察しのとおり、接続鍵が違う場合にこのエラーが出ます。

GitHubでssh接続する手順公開鍵・秘密鍵の生成から - Qiita

どーこーいじくるよりも、
あっさり最初からやり直してしまうほうが早そうです