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Generating a new SSH key and adding it to the ssh-agent

After you've checked for existing SSH keys, you can generate a new SSH key to use for authentication, then add it to the ssh-agent.

About SSH key generation

If you don't already have an SSH key, you must generate a new SSH key to use for authentication. If you're unsure whether you already have an SSH key, you can check for existing keys. For more information, see "Checking for existing SSH keys."

If you want to use a hardware security key to authenticate to GitHub, you must generate a new SSH key for your hardware security key. You must connect your hardware security key to your computer when you authenticate with the key pair. For more information, see the OpenSSH 8.2 release notes.

If you don't want to reenter your passphrase every time you use your SSH key, you can add your key to the SSH agent, which manages your SSH keys and remembers your passphrase.

Generating a new SSH key

  1. Open TerminalTerminalGit Bash.

  2. Paste the text below, substituting in your GitHub email address.

    $ ssh-keygen -t ed25519 -C "your_email@example.com"

    Note: If you are using a legacy system that doesn't support the Ed25519 algorithm, use:

    $ ssh-keygen -t rsa -b 4096 -C "your_email@example.com"
    This creates a new SSH key, using the provided email as a label. 
    > Generating public/private ed25519 key pair.

  3. When you're prompted to "Enter a file in which to save the key," press Enter. This accepts the default file location.

    > Enter a file in which to save the key (/Users/you/.ssh/id_ed25519): [Press enter]
    > Enter a file in which to save the key (/c/Users/you/.ssh/id_ed25519):[Press enter]
    > Enter a file in which to save the key (/home/you/.ssh/id_ed25519): [Press enter]

  4. At the prompt, type a secure passphrase. For more information, see "Working with SSH key passphrases."

    > Enter passphrase (empty for no passphrase): [Type a passphrase]
> Enter same passphrase again: [Type passphrase again]

Adding your SSH key to the ssh-agent

Before adding a new SSH key to the ssh-agent to manage your keys, you should have checked for existing SSH keys and generated a new SSH key. When adding your SSH key to the agent, use the default macOS ssh-add command, and not an application installed by macports, homebrew, or some other external source.

  1. Start the ssh-agent in the background. 

    $ eval "$(ssh-agent -s)"
> Agent pid 59566

    Depending on your environment, you may need to use a different command. For example, you may need to use root access by running sudo -s -H before starting the ssh-agent, or you may need to use exec ssh-agent bash or exec ssh-agent zsh to run the ssh-agent.

  2. If you're using macOS Sierra 10.12.2 or later, you will need to modify your ~/.ssh/config file to automatically load keys into the ssh-agent and store passphrases in your keychain.

    • First, check to see if your ~/.ssh/config file exists in the default location.

      $ open ~/.ssh/config
> The file /Users/you/.ssh/config does not exist.

    • If the file doesn't exist, create the file.

      $ touch ~/.ssh/config

    • Open your ~/.ssh/config file, then modify the file to contain the following lines. If your SSH key file has a different name or path than the example code, modify the filename or path to match your current setup. 

      Host *
  AddKeysToAgent yes
  UseKeychain yes
  IdentityFile ~/.ssh/id_ed25519

      Note: If you chose not to add a passphrase to your key, you should omit the UseKeychain line.

      Note: If you see an error like this

      /Users/USER/.ssh/config: line 16: Bad configuration option: usekeychain

      add an additional config line to your Host * section:

      Host *
  IgnoreUnknown UseKeychain

  3. Add your SSH private key to the ssh-agent and store your passphrase in the keychain. If you created your key with a different name, or if you are adding an existing key that has a different name, replace id_ed25519 in the command with the name of your private key file.

    $ ssh-add -K ~/.ssh/id_ed25519

    Note: The -K option is Apple's standard version of ssh-add, which stores the passphrase in your keychain for you when you add an SSH key to the ssh-agent. If you chose not to add a passphrase to your key, run the command without the -K option.

    If you don't have Apple's standard version installed, you may receive an error. For more information on resolving this error, see "Error: ssh-add: illegal option -- K."

  4. Add the SSH key to your account on GitHub. For more information, see "Adding a new SSH key to your GitHub account."

If you have GitHub Desktop installed, you can use it to clone repositories and not deal with SSH keys.

  1. Ensure the ssh-agent is running. You can use the "Auto-launching the ssh-agent" instructions in "Working with SSH key passphrases", or start it manually:

    # start the ssh-agent in the background
$ eval "$(ssh-agent -s)"
> Agent pid 59566

  2. Add your SSH private key to the ssh-agent. If you created your key with a different name, or if you are adding an existing key that has a different name, replace id_ed25519 in the command with the name of your private key file.

    $ ssh-add ~/.ssh/id_ed25519

  3. Add the SSH key to your account on GitHub. For more information, see "Adding a new SSH key to your GitHub account."

  1. Start the ssh-agent in the background. 

    $ eval "$(ssh-agent -s)"
> Agent pid 59566

    Depending on your environment, you may need to use a different command. For example, you may need to use root access by running sudo -s -H before starting the ssh-agent, or you may need to use exec ssh-agent bash or exec ssh-agent zsh to run the ssh-agent.

  2. Add your SSH private key to the ssh-agent. If you created your key with a different name, or if you are adding an existing key that has a different name, replace id_ed25519 in the command with the name of your private key file.

    $ ssh-add ~/.ssh/id_ed25519

  3. Add the SSH key to your account on GitHub. For more information, see "Adding a new SSH key to your GitHub account."

Generating a new SSH key for a hardware security key

If you are using macOS or Linux, you may need to update your SSH client or install a new SSH client prior to generating a new SSH key. For more information, see "Error: Unknown key type."

  1. Insert your hardware security key into your computer.

  2. Open TerminalTerminalGit Bash.

  3. Paste the text below, substituting in the email address for your account on GitHub.

    $ ssh-keygen -t ed25519-sk -C "your_email@example.com"

    Note: If the command fails and you receive the error invalid format or feature not supported, you may be using a hardware security key that does not support the Ed25519 algorithm. Enter the following command instead.

    $ ssh-keygen -t ecdsa-sk -C "your_email@example.com"

  4. When you are prompted, touch the button on your hardware security key.

  5. When you are prompted to "Enter a file in which to save the key," press Enter to accept the default file location.

    > Enter a file in which to save the key (/Users/you/.ssh/id_ed25519_sk): [Press enter]
    > Enter a file in which to save the key (/c/Users/you/.ssh/id_ed25519_sk):[Press enter]
    > Enter a file in which to save the key (/home/you/.ssh/id_ed25519_sk): [Press enter]

  6. When you are prompted to type a passphrase, press Enter.

    > Enter passphrase (empty for no passphrase): [Type a passphrase]
> Enter same passphrase again: [Type passphrase again]

  7. Add the SSH key to your account on GitHub. For more information, see "Adding a new SSH key to your GitHub account."

Further reading

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ssh-agent.","tocItems":[],"variant":"compact","featuredLinks":{},"renderedPage":"","currentLearningTrack":{}},"articleContext":{"title":"Generating a new SSH key and adding it to the ssh-agent","intro":"\u003cp\u003eAfter you've checked for existing SSH keys, you can generate a new SSH key to use for authentication, then add it to the ssh-agent.\u003c/p\u003e","renderedPage":"\u003ch2 id=\"about-ssh-key-generation\"\u003e\u003ca aria-hidden=\"\" tabindex=\"-1\" class=\"doctocat-link\" href=\"#about-ssh-key-generation\"\u003e\u003csvg aria-hidden=\"\" role=\"img\" class=\"octicon-link\" viewBox=\"0 0 16 16\" width=\"16\" height=\"16\" fill=\"currentColor\" style=\"display:inline-block;user-select:none;vertical-align:middle\"\u003e\u003cpath fill-rule=\"evenodd\" d=\"M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003eAbout SSH key generation\u003c/h2\u003e\n\u003cp\u003eIf you don't already have an SSH key, you must generate a new SSH key to use for authentication. If you're unsure whether you already have an SSH key, you can check for existing keys. For more information, see \"\u003ca href=\"/en/github/authenticating-to-github/checking-for-existing-ssh-keys\"\u003eChecking for existing SSH keys\u003c/a\u003e.\"\u003c/p\u003e\n\u003cp\u003eIf you want to use a hardware security key to authenticate to GitHub, you must generate a new SSH key for your hardware security key. You must connect your hardware security key to your computer when you authenticate with the key pair. For more information, see the \u003ca href=\"https://www.openssh.com/txt/release-8.2\"\u003eOpenSSH 8.2 release notes\u003c/a\u003e.\u003c/p\u003e\n\u003cp\u003eIf you don't want to reenter your passphrase every time you use your SSH key, you can add your key to the SSH agent, which manages your SSH keys and remembers your passphrase.\u003c/p\u003e\n\u003ch2 id=\"generating-a-new-ssh-key\"\u003e\u003ca aria-hidden=\"\" tabindex=\"-1\" class=\"doctocat-link\" href=\"#generating-a-new-ssh-key\"\u003e\u003csvg aria-hidden=\"\" role=\"img\" class=\"octicon-link\" viewBox=\"0 0 16 16\" width=\"16\" height=\"16\" fill=\"currentColor\" style=\"display:inline-block;user-select:none;vertical-align:middle\"\u003e\u003cpath fill-rule=\"evenodd\" d=\"M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003eGenerating a new SSH key\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003eOpen \u003cspan class=\"platform-mac\"\u003eTerminal\u003c/span\u003e\u003cspan class=\"platform-linux\"\u003eTerminal\u003c/span\u003e\u003cspan class=\"platform-windows\"\u003eGit Bash\u003c/span\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003ePaste the text below, substituting in your GitHub email address.\u003c/p\u003e\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e$ ssh-keygen -t ed25519 -C \"\u003cem\u003eyour_email@example.com\u003c/em\u003e\"\u003c/code\u003e\u003c/pre\u003e\n\u003cdiv class=\"extended-markdown note border rounded-1 mb-4 p-3 color-border-info color-bg-info f5\"\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c/strong\u003e If you are using a legacy system that doesn't support the Ed25519 algorithm, use:\u003c/p\u003e\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e$ ssh-keygen -t rsa -b 4096 -C \"your_email@example.com\"\u003c/code\u003e\u003c/pre\u003e\n\u003c/div\u003e \nThis creates a new SSH key, using the provided email as a label.\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e\u003e Generating public/private ed25519 key pair.\u003c/code\u003e\u003c/pre\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhen you're prompted to \"Enter a file in which to save the key,\" press Enter. This accepts the default file location.\u003c/p\u003e\n\u003cdiv class=\"extended-markdown mac\"\u003e\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e\u003e Enter a file in which to save the key (/Users/\u003cem\u003eyou\u003c/em\u003e/.ssh/id_ed25519): \u003cem\u003e[Press enter]\u003c/em\u003e\u003c/code\u003e\u003c/pre\u003e\n\u003c/div\u003e\n\u003cdiv class=\"extended-markdown windows\"\u003e\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e\u003e Enter a file in which to save the key (/c/Users/\u003cem\u003eyou\u003c/em\u003e/.ssh/id_ed25519):\u003cem\u003e[Press enter]\u003c/em\u003e\u003c/code\u003e\u003c/pre\u003e\n\u003c/div\u003e\n\u003cdiv class=\"extended-markdown linux\"\u003e\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e\u003e Enter a file in which to save the key (/home/\u003cem\u003eyou\u003c/em\u003e/.ssh/id_ed25519): \u003cem\u003e[Press enter]\u003c/em\u003e\u003c/code\u003e\u003c/pre\u003e\n\u003c/div\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003eAt the prompt, type a secure passphrase. For more information, see \u003ca href=\"/en/articles/working-with-ssh-key-passphrases\"\u003e\"Working with SSH key passphrases\u003c/a\u003e.\"\u003c/p\u003e\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e\u003e Enter passphrase (empty for no passphrase): \u003cem\u003e[Type a passphrase]\u003c/em\u003e\n\u003e Enter same passphrase again: \u003cem\u003e[Type passphrase again]\u003c/em\u003e\u003c/code\u003e\u003c/pre\u003e\n\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"adding-your-ssh-key-to-the-ssh-agent\"\u003e\u003ca aria-hidden=\"\" tabindex=\"-1\" class=\"doctocat-link\" href=\"#adding-your-ssh-key-to-the-ssh-agent\"\u003e\u003csvg aria-hidden=\"\" role=\"img\" class=\"octicon-link\" viewBox=\"0 0 16 16\" width=\"16\" height=\"16\" fill=\"currentColor\" style=\"display:inline-block;user-select:none;vertical-align:middle\"\u003e\u003cpath fill-rule=\"evenodd\" d=\"M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003eAdding your SSH key to the ssh-agent\u003c/h2\u003e\n\u003cp\u003eBefore adding a new SSH key to the ssh-agent to manage your keys, you should have checked for existing SSH keys and generated a new SSH key. \u003cspan class=\"platform-mac\"\u003eWhen adding your SSH key to the agent, use the default macOS \u003ccode\u003essh-add\u003c/code\u003e command, and not an application installed by \u003ca href=\"https://www.macports.org/\"\u003emacports\u003c/a\u003e, \u003ca href=\"http://brew.sh/\"\u003ehomebrew\u003c/a\u003e, or some other external source.\u003c/span\u003e\u003c/p\u003e\n\u003cdiv class=\"extended-markdown mac\"\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003eStart the ssh-agent in the background. \u003c/p\u003e\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e$ eval \"$(ssh-agent -s)\"\n\u003e Agent pid 59566\u003c/code\u003e\u003c/pre\u003e\n\u003cp\u003eDepending on your environment, you may need to use a different command. For example, you may need to use root access by running \u003ccode\u003esudo -s -H\u003c/code\u003e before starting the ssh-agent, or you may need to use \u003ccode\u003eexec ssh-agent bash\u003c/code\u003e or \u003ccode\u003eexec ssh-agent zsh\u003c/code\u003e to run the ssh-agent.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003eIf you're using macOS Sierra 10.12.2 or later, you will need to modify your \u003ccode\u003e~/.ssh/config\u003c/code\u003e file to automatically load keys into the ssh-agent and store passphrases in your keychain.\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eFirst, check to see if your \u003ccode\u003e~/.ssh/config\u003c/code\u003e file exists in the default location.\u003c/p\u003e\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e$ open ~/.ssh/config\n\u003e The file /Users/\u003cem\u003eyou\u003c/em\u003e/.ssh/config does not exist.\u003c/code\u003e\u003c/pre\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003eIf the file doesn't exist, create the file.\u003c/p\u003e\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e$ touch ~/.ssh/config\u003c/code\u003e\u003c/pre\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003eOpen your \u003ccode\u003e~/.ssh/config\u003c/code\u003e file, then modify the file to contain the following lines. If your SSH key file has a different name or path than the example code, modify the filename or path to match your current setup. \u003c/p\u003e\n\u003cpre\u003e\u003ccode\u003eHost *\n AddKeysToAgent yes\n UseKeychain yes\n IdentityFile ~/.ssh/id_ed25519\n\u003c/code\u003e\u003c/pre\u003e\n\u003cdiv class=\"extended-markdown note border rounded-1 mb-4 p-3 color-border-info color-bg-info f5\"\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c/strong\u003e If you chose not to add a passphrase to your key, you should omit the \u003ccode\u003eUseKeychain\u003c/code\u003e line.\u003c/p\u003e\n\u003c/div\u003e\n \u003cdiv class=\"extended-markdown mac\"\u003e\n \u003cdiv class=\"extended-markdown note border rounded-1 mb-4 p-3 color-border-info color-bg-info f5\"\u003e\n\u003cp\u003e \u003cstrong\u003eNote:\u003c/strong\u003e If you see an error like this\u003c/p\u003e\n\u003cpre\u003e\u003ccode\u003e/Users/USER/.ssh/config: line 16: Bad configuration option: usekeychain\n\u003c/code\u003e\u003c/pre\u003e\n\u003cp\u003e add an additional config line to your \u003ccode\u003eHost *\u003c/code\u003e section:\u003c/p\u003e\n\u003cpre\u003e\u003ccode\u003eHost *\n IgnoreUnknown UseKeychain\n\u003c/code\u003e\u003c/pre\u003e\n \u003c/div\u003e\n \u003c/div\u003e\n\u003c/li\u003e\n\u003c/ul\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdd your SSH private key to the ssh-agent and store your passphrase in the keychain. If you created your key with a different name, or if you are adding an existing key that has a different name, replace \u003cem\u003eid_ed25519\u003c/em\u003e in the command with the name of your private key file.\u003c/p\u003e\n \u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e$ ssh-add -K ~/.ssh/id_ed25519\u003c/code\u003e\u003c/pre\u003e\n\u003cdiv class=\"extended-markdown note border rounded-1 mb-4 p-3 color-border-info color-bg-info f5\"\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c/strong\u003e The \u003ccode\u003e-K\u003c/code\u003e option is Apple's standard version of \u003ccode\u003essh-add\u003c/code\u003e, which stores the passphrase in your keychain for you when you add an SSH key to the ssh-agent. If you chose not to add a passphrase to your key, run the command without the \u003ccode\u003e-K\u003c/code\u003e option. \u003c/p\u003e\n\u003cp\u003eIf you don't have Apple's standard version installed, you may receive an error. For more information on resolving this error, see \"\u003ca href=\"/en/articles/error-ssh-add-illegal-option-k\"\u003eError: ssh-add: illegal option -- K\u003c/a\u003e.\"\u003c/p\u003e\n\u003c/div\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdd the SSH key to your account on GitHub. For more information, see \"\u003ca href=\"/en/github/authenticating-to-github/adding-a-new-ssh-key-to-your-github-account\"\u003eAdding a new SSH key to your GitHub account\u003c/a\u003e.\"\u003c/p\u003e\n\u003c/li\u003e\n\u003c/ol\u003e\n\u003c/div\u003e\n\u003cdiv class=\"extended-markdown windows\"\u003e\n\u003cp\u003eIf you have \u003ca href=\"https://desktop.github.com/\"\u003eGitHub Desktop\u003c/a\u003e installed, you can use it to clone repositories and not deal with SSH keys.\u003c/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003eEnsure the ssh-agent is running. You can use the \"Auto-launching the ssh-agent\" instructions in \"\u003ca href=\"/en/articles/working-with-ssh-key-passphrases\"\u003eWorking with SSH key passphrases\u003c/a\u003e\", or start it manually:\u003c/p\u003e\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e# start the ssh-agent in the background\n$ eval \"$(ssh-agent -s)\"\n\u003e Agent pid 59566\u003c/code\u003e\u003c/pre\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdd your SSH private key to the ssh-agent. If you created your key with a different name, or if you are adding an existing key that has a different name, replace \u003cem\u003eid_ed25519\u003c/em\u003e in the command with the name of your private key file.\u003c/p\u003e\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e$ ssh-add ~/.ssh/id_ed25519\u003c/code\u003e\u003c/pre\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdd the SSH key to your account on GitHub. For more information, see \"\u003ca href=\"/en/github/authenticating-to-github/adding-a-new-ssh-key-to-your-github-account\"\u003eAdding a new SSH key to your GitHub account\u003c/a\u003e.\"\u003c/p\u003e\n\u003c/li\u003e\n\u003c/ol\u003e\n\u003c/div\u003e\n\u003cdiv class=\"extended-markdown linux\"\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003eStart the ssh-agent in the background. \u003c/p\u003e\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e$ eval \"$(ssh-agent -s)\"\n\u003e Agent pid 59566\u003c/code\u003e\u003c/pre\u003e\n\u003cp\u003eDepending on your environment, you may need to use a different command. For example, you may need to use root access by running \u003ccode\u003esudo -s -H\u003c/code\u003e before starting the ssh-agent, or you may need to use \u003ccode\u003eexec ssh-agent bash\u003c/code\u003e or \u003ccode\u003eexec ssh-agent zsh\u003c/code\u003e to run the ssh-agent.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdd your SSH private key to the ssh-agent. If you created your key with a different name, or if you are adding an existing key that has a different name, replace \u003cem\u003eid_ed25519\u003c/em\u003e in the command with the name of your private key file.\u003c/p\u003e\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e$ ssh-add ~/.ssh/id_ed25519\u003c/code\u003e\u003c/pre\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdd the SSH key to your account on GitHub. For more information, see \"\u003ca href=\"/en/github/authenticating-to-github/adding-a-new-ssh-key-to-your-github-account\"\u003eAdding a new SSH key to your GitHub account\u003c/a\u003e.\"\u003c/p\u003e\n\u003c/li\u003e\n\u003c/ol\u003e\n\u003c/div\u003e\n\u003ch2 id=\"generating-a-new-ssh-key-for-a-hardware-security-key\"\u003e\u003ca aria-hidden=\"\" tabindex=\"-1\" class=\"doctocat-link\" href=\"#generating-a-new-ssh-key-for-a-hardware-security-key\"\u003e\u003csvg aria-hidden=\"\" role=\"img\" class=\"octicon-link\" viewBox=\"0 0 16 16\" width=\"16\" height=\"16\" fill=\"currentColor\" style=\"display:inline-block;user-select:none;vertical-align:middle\"\u003e\u003cpath fill-rule=\"evenodd\" d=\"M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003eGenerating a new SSH key for a hardware security key\u003c/h2\u003e\n\u003cp\u003eIf you are using macOS or Linux, you may need to update your SSH client or install a new SSH client prior to generating a new SSH key. For more information, see \"\u003ca href=\"/en/github/authenticating-to-github/error-unknown-key-type\"\u003eError: Unknown key type\u003c/a\u003e.\"\u003c/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003eInsert your hardware security key into your computer.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003eOpen \u003cspan class=\"platform-mac\"\u003eTerminal\u003c/span\u003e\u003cspan class=\"platform-linux\"\u003eTerminal\u003c/span\u003e\u003cspan class=\"platform-windows\"\u003eGit Bash\u003c/span\u003e.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003ePaste the text below, substituting in the email address for your account on GitHub.\u003c/p\u003e\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e$ ssh-keygen -t ed25519-sk -C \"\u003cem\u003eyour_email@example.com\u003c/em\u003e\"\u003c/code\u003e\u003c/pre\u003e\n\u003cdiv class=\"extended-markdown note border rounded-1 mb-4 p-3 color-border-info color-bg-info f5\"\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c/strong\u003e If the command fails and you receive the error \u003ccode\u003einvalid format\u003c/code\u003e or \u003ccode\u003efeature not supported,\u003c/code\u003e you may be using a hardware security key that does not support the Ed25519 algorithm. Enter the following command instead.\u003c/p\u003e\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e$ ssh-keygen -t ecdsa-sk -C \"your_email@example.com\"\u003c/code\u003e\u003c/pre\u003e\n\u003c/div\u003e \n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhen you are prompted, touch the button on your hardware security key.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhen you are prompted to \"Enter a file in which to save the key,\" press Enter to accept the default file location.\u003c/p\u003e\n\u003cdiv class=\"extended-markdown mac\"\u003e\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e\u003e Enter a file in which to save the key (/Users/\u003cem\u003eyou\u003c/em\u003e/.ssh/id_ed25519_sk): \u003cem\u003e[Press enter]\u003c/em\u003e\u003c/code\u003e\u003c/pre\u003e\n\u003c/div\u003e\n\u003cdiv class=\"extended-markdown windows\"\u003e\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e\u003e Enter a file in which to save the key (/c/Users/\u003cem\u003eyou\u003c/em\u003e/.ssh/id_ed25519_sk):\u003cem\u003e[Press enter]\u003c/em\u003e\u003c/code\u003e\u003c/pre\u003e\n\u003c/div\u003e\n\u003cdiv class=\"extended-markdown linux\"\u003e\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e\u003e Enter a file in which to save the key (/home/\u003cem\u003eyou\u003c/em\u003e/.ssh/id_ed25519_sk): \u003cem\u003e[Press enter]\u003c/em\u003e\u003c/code\u003e\u003c/pre\u003e\n\u003c/div\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhen you are prompted to type a passphrase, press \u003cstrong\u003eEnter\u003c/strong\u003e.\u003c/p\u003e\n\u003cpre\u003e\u003ccode class=\"hljs language-shell\"\u003e\u003e Enter passphrase (empty for no passphrase): \u003cem\u003e[Type a passphrase]\u003c/em\u003e\n\u003e Enter same passphrase again: \u003cem\u003e[Type passphrase again]\u003c/em\u003e\u003c/code\u003e\u003c/pre\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdd the SSH key to your account on GitHub. For more information, see \"\u003ca href=\"/en/github/authenticating-to-github/adding-a-new-ssh-key-to-your-github-account\"\u003eAdding a new SSH key to your GitHub account\u003c/a\u003e.\"\u003c/p\u003e\n\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"further-reading\"\u003e\u003ca aria-hidden=\"\" tabindex=\"-1\" class=\"doctocat-link\" href=\"#further-reading\"\u003e\u003csvg aria-hidden=\"\" role=\"img\" class=\"octicon-link\" viewBox=\"0 0 16 16\" width=\"16\" height=\"16\" fill=\"currentColor\" style=\"display:inline-block;user-select:none;vertical-align:middle\"\u003e\u003cpath fill-rule=\"evenodd\" d=\"M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003eFurther reading\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\"\u003ca href=\"/en/articles/about-ssh\"\u003eAbout SSH\u003c/a\u003e\"\u003c/li\u003e\n\u003cli\u003e\"\u003ca href=\"/en/articles/working-with-ssh-key-passphrases\"\u003eWorking with SSH key passphrases\u003c/a\u003e\"\u003c/li\u003e\n\u003cli\u003e\"\u003ca href=\"/en/articles/authorizing-an-ssh-key-for-use-with-saml-single-sign-on\"\u003eAuthorizing an SSH key for use with SAML single sign-on\u003c/a\u003e\"\u003c/li\u003e\n\u003c/ul\u003e","miniTocItems":[{"indentationLevel":0,"platform":"","contents":"\u003ca href=\"#about-ssh-key-generation\"\u003eAbout SSH key generation\u003c/a\u003e"},{"indentationLevel":0,"platform":"","contents":"\u003ca href=\"#generating-a-new-ssh-key\"\u003eGenerating a new SSH key\u003c/a\u003e"},{"indentationLevel":0,"platform":"","contents":"\u003ca href=\"#adding-your-ssh-key-to-the-ssh-agent\"\u003eAdding your SSH key to the ssh-agent\u003c/a\u003e"},{"indentationLevel":0,"platform":"","contents":"\u003ca href=\"#generating-a-new-ssh-key-for-a-hardware-security-key\"\u003eGenerating a new SSH key for a hardware security key\u003c/a\u003e"},{"indentationLevel":0,"platform":"","contents":"\u003ca href=\"#further-reading\"\u003eFurther reading\u003c/a\u003e"}],"contributor":null,"permissions":"","includesPlatformSpecificContent":true,"defaultPlatform":"","product":"","currentLearningTrack":{}}},"themeProps":{"colorMode":"auto","nightTheme":"dark","dayTheme":"light"},"csrfToken":"1Q9IWAAd-gOldUWm0ax7oEK_GEJV_uxrrX1U","languagesContext":{"languages":{"en":{"name":"English","code":"en","hreflang":"en","dir":"","wip":false},"cn":{"name":"Simplified Chinese","nativeName":"简体中文","code":"cn","hreflang":"zh-Hans","redirectPatterns":[{},{}],"dir":"translations/zh-CN","wip":false},"ja":{"name":"Japanese","nativeName":"日本語","code":"ja","hreflang":"ja","redirectPatterns":[{}],"dir":"translations/ja-JP","wip":false},"es":{"name":"Spanish","nativeName":"Español","code":"es","hreflang":"es","dir":"translations/es-XL","wip":false},"pt":{"name":"Portuguese","nativeName":"Português do Brasil","code":"pt","hreflang":"pt","dir":"translations/pt-BR","wip":false},"de":{"name":"German","nativeName":"Deutsch","code":"de","hreflang":"de","dir":"translations/de-DE","wip":true}}},"__N_SSP":true},"page":"/[versionId]/[productId]/[...restPage]","query":{"versionId":"free-pro-team@latest","productId":"authentication","restPage":["connecting-to-github-with-ssh","generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent"]},"buildId":"edGgo7ZaGV6U16AUhDsto","isFallback":false,"gssp":true,"customServer":true,"appGip":true,"locale":"en","locales":["en","cn","ja","es","pt","de"],"defaultLocale":"en","scriptLoader":[]}</script>

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Ansible role to install and configure Apache with Tisamo's recommended configuration

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