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Multiple SSH keys Management

Posted on Edited on

Goal

Use different ssh keys for different hosts in git.

Steps

  1. Generate the keys.

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    ssh-keygen -t rsa -C "your_email@youremail.com"

    Specify the new id_rsa path.

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    Enter file in which to save the key (/Users/user/.ssh/id_rsa): /Users/user/.ssh/id_rsa_company

  2. Evict the oudated Identity cache.

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    ssh-add -D

  3. Add ssh key

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    ssh-add ~/.ssh/id_rsa
    ssh-add ~/.ssh/id_rsa_company

  4. Create ssh config.

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    cd ~/.ssh
    touch config

  5. Modify config.

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    # Company
    Host Company
        HostName github.company.io
        User yourName
        IdentityFile ~/.ssh/id_rsa_company

    # Myself
    Host Myself
        HostName github.com
        User opsmilesum
        IdentityFile ~/.ssh/id_rsa