여러 SSH 키 설정

1. 새 SSH 키 생성

ssh-keygen -t ed25519 -C "<comment>"

ssh-keygen -t rsa -b 2048 -C "<comment>"

2. SSH 키 추가

eval $(ssh-agent -s)
ssh-add <directory to private SSH key>

3. 구성 설정

Host gitlab-scope
  HostName gitlab.com
  PreferredAuthentications publickey
  IdentityFile ~/.ssh/gitlab_com_rsa

Host aws-codecommit
  HostName git-codecommit.{region}.amazonaws.com
  User APKARF3PHVLQ1EXAMPLE
  PreferredAuthentications publickey
  IdentityFile ~/.ssh/private_key
  PubkeyAcceptedAlgorithms +ssh-rsa
  HostkeyAlgorithms +ssh-rsa

호스트 이름

4. 공개 키 설정

cat private_key.pub

ssh-ed25519 ABBBC3NzaC1lZDI1NTE5AAAAIBSFa3klpakF4ZkNPO7JWMsQDqy3Wd6ZvyPslt <comment>

5. 연결 확인

ssh -T git@gitlab-scope

The authenticity of host 'gitlab.com (172.0.0.1)' can't be established.
ECDSA key fingerprint is SHA256:hfksfbdfoerHKSDKFDFDFDF.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added 'gitlab.com,172.0.0.1' (ECDSA) to the list of known hosts.
Welcome to GitLab, @user!

6. 리포지토리 복제

git clone git@gitlab-scope:project/repository-name.git

git clone ssh://aws-codecommit/v1/repos/repository-name