Insert your hardware security key into your computer. You have no guarantee that the server is. For Number of bits in a generated key, leave the default value of 2048. For Type of Key to generate, select SSH-2 RSA. From the Start menu, go to All Programs then PuTTY and then PuTTYgen and run the PuTTYgen program.
CHANGE HOST KEY FOR SSH ON MAC INSTALL
For more information, see " Error: Unknown key type." 35 brings a major update to the SSH algorithms adding support for AES-GCM ciphers, new key exchange and MAC algorithms, Encrypt-then-MAC (EtM) mode. 0 Authentication timeout: 120 secs Authentication retries: 3 Minimum expected Diffie. After you download and install PuTTY: Make a copy of your private key just in case you lose it when changing the format. 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. Generating a new SSH key for a hardware security key For more information, see " Adding a new SSH key to your GitHub account." $ ssh-add ~/.ssh/id_ed25519Īdd the SSH key to your account on GitHub. 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. Host *Īdd your SSH private key to the ssh-agent. 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. From the terminal, enter ssh-keygen at the command line.
By default, the system adds keys to the /Users/Open your ~/.ssh/config file, then modify the file to contain the following lines. Use this section to create a default identity and SSH key on macOS or Linux. and my router always reused the same IP since the MAC address was the same.
If you want to change it before enabling password-based authentication. If the file doesn't exist, create the file. Then edit knownhosts to clear the original key, then ssh to the host using. Our second host server (php-web2) is accessible with ssh key-pair with user root. > The file /Users/ you/.ssh/config does not exist. 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.įirst, check to see if your ~/.ssh/config file exists in the default location.
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. $ eval "$(ssh-agent -s)"ĭepending on your environment, you may need to use a different command.
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