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  • https://coderwall.com/p/7smjkq/multiple-ssh-keys-for-different-accounts-on-github-or-gitlab

    Multiple SSH keys for different accounts on Github or Gitlab

    SSH GIT GITLAB GITHUB
    Sometimes you need more accounts than one for access to Github or Gitlab and similar tools. For example you can have one account for your projects at home and second account for your company.

    Case 1: Multiple accounts on Github

    Create SSH keys with different names

    $ ssh-keygen -t rsa -C "your_name@home_email.com"
    When you see this message

    Generating public/private rsa key pair.
    Enter file in which to save the key (/home/user_name/.ssh/id_rsa):
    Enter unique name, for example:

    id_rsa_home
    Next, you'll be asked to enter a passphrase.

    So, you'll have created SSH key for your home account, now you can generate SSH key for your company account.

    Call SSH key generator again with second mail.

    $ ssh-keygen -t rsa -C "your_name@company_email.com"
    Enter name for file

    id_rsa_company
    After all steps you can check that all keys were created.

    $ ls ~/.ssh
    You should see a similar files list:

    id_rsa_home id_rsa_company id_rsa_home.pub id_rsa_company.pub
    Now you need a config file for organise these keys.

    $ cd ~/.ssh/
    $ touch config
    $ nano config
    Add into config file:

    Home account

    Host home.github.com
    HostName github.com
    PreferredAuthentications publickey
    IdentityFile ~/.ssh/id_rsa_home

    Company account

    Host company.github.com
    HostName github.com
    PreferredAuthentications publickey
    IdentityFile ~/.ssh/id_rsa_company
    Next you'll delete cached keys

    $ ssh-add -D
    If you see a message

    Could not open a connection to your authentication agent.
    Then enter:

    eval ssh-agent -s
    and try again previous command.

    Next, you can check that your keys were added:

    $ ssh-add -l
    2048 d4:e0:39:e1:bf:6f:e3:26:14:6b:26:73:4e:b4:53:83 /home/user/.ssh/id_rsa_home (RSA)
    2048 7a:32:06:3f:3d:6c:f4:a1:d4:65:13:64:a4:ed:1d:63 /home/mateusz/.ssh/id_rsa_company (RSA)
    If you haven't any entries then you should add your keys

    ssh-add ~/.ssh/id_rsa_company
    ssh-add ~/.ssh/id_rsa_home
    Now you can check connection

    $ ssh -T git@home.github.com
    Hi home_user! You've successfully authenticated, but GitHub does not provide shell access.

    $ ssh -T git@work.github.com
    Hi company_user! You've successfully authenticated, but GitHub does not provide shell access.
    Note! Check the last paragraph of this tip.

    Case 2: Account on Github and Gitlab

    This is very similar case to the previous. I won't describe it step by step, because all steps are the same. I'll add only example config file.

    For example you have own account for home works and company account on gitlab.

    GITLAB

    Host gitlab.company_url.com
    HostName gitlab.company_url.com
    PreferredAuthentications publickey
    IdentityFile ~/.ssh/id_rsa_company

    GITHUB

    Host github.com
    HostName github.com
    PreferredAuthentications publickey
    IdentityFile ~/.ssh/id_rsa_home
    The test connections

    $ ssh -T git@gitlab.company_url.com
    Welcome to GitLab, CompanyUser!

    $ ssh -T git@github.com
    Hi home_user! You've successfully authenticated, but GitHub does not provide shell access.
    As you probably have seen, prefix on hostname isn't required.

    You may need to set git config user details for any project.

    It's required to distinguish your accounts.

    $ cd ~/home_project
    $ git config user.name "home_user"
    $ git config user.email "your_name@home_email.com"

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  • 原文地址:https://www.cnblogs.com/joe-yang/p/7496559.html
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