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linux_wiki:configure_key-based_authentication [2016/09/06 21:45] billdozor [SSH Key Creation and Distribution] |
linux_wiki:configure_key-based_authentication [2019/05/25 23:50] (current) |
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| SSH key based authentication (password-less). | SSH key based authentication (password-less). | ||
| + | |||
| + | ---- | ||
| + | |||
| + | ====== Lab Setup ====== | ||
| + | |||
| + | The following virtual machines will be used: | ||
| + | * server1.example.com (192.168.1.150) -> The SSH client | ||
| + | * server2.example.com (192.168.1.151) -> The SSH server | ||
| ---- | ---- | ||
| Line 27: | Line 35: | ||
| * Prompted for password login | * Prompted for password login | ||
| * Next normal ssh login will be password-less | * Next normal ssh login will be password-less | ||
| + | |||
| + | \\ | ||
| + | __**Key Pair with Passphrase**__ | ||
| + | |||
| + | If you created the key pair with a passphrase, it is useful to cache the passphrase for a bash session to avoid re-entering it for each ssh connect. | ||
| + | |||
| + | \\ | ||
| + | Start the ssh-agent for the current shell | ||
| + | <code bash> | ||
| + | ssh-agent bash | ||
| + | </ | ||
| + | |||
| + | \\ | ||
| + | Add the passphrase | ||
| + | <code bash> | ||
| + | ssh-add | ||
| + | </ | ||
| + | * Prompted for the ssh key passphrase | ||
| + | |||
| + | \\ | ||
| + | Connect as normal with ssh, you should not be prompted for a password if the public key has already been copied to the remote server. | ||
| ---- | ---- | ||