I use this file to control tunnels I always use, the private key needed for the connection, the username (if it differs from my local username), etc. ssh and enter it.Ĭonfig is the file name, it is a plain text file with configuration parameters. If you're in Terminal and in your home directory, you can simply run cd. ~, your home directory, it expands on my system to /Users/jason. This file doesn't exist by default (per the comments on the question), but should be written at ~/.ssh/config. The SSH client allows you to store an amazing amount of properties based on a given hostname, even global defaults, in the "ssh_config" client file. On Linux, OS X, and most other UNIX-y based environments, SSH is generally purely command line, but still amazingly powerful. However, PuTTy users will need it for the creation of the SSH keys.PuTTY is a great Windows frontend, not to mention the need for an SSH client in the first place. You can even download it separately if you only need to generate public and private key pairs. The app is not strictly related to PuTTy. Moreover, it allows the loading of existing ones so that you can make changes to them. It simplifies the process and creates new key pairs with a few clicks. PuTTYgen is a useful networking tool that allows users to generate SSH keys. Meanwhile, SSH-2 supports multiple key types, including Digital Signature Algorithm (DSA), Elliptic Curve Digital Signature Algorithm (ECDSA), and Ed25519. However, SSH-1 only supports one key, which is Rivest–Shamir–Adleman (RSA). The app currently supports key types for both SSH-2 and SSH-1 protocols. You can even make extra copies of the public key.īefore generating a key pair, it is important to know the type of key that PuTTYgen supports. You can also load existing key pairs to the app, which can change its passphrase and comment. Then the public key will be available for copying and pasting. If you want, you can load the private key back into the app later.
The public key can be copied to your server by either copy-pasting it from the public key to the OpenSSH authorized_keys file box or through the Save public key button.
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