Tip of the Day: Generating a New SSH Key Stored in the Default Location

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  • Updated 4 years ago
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Prerequisites:
These operations are performed as a command line user on a non-Dephix host, where SSH is installed.  In the remainder of the document we will use:
  • username - to refer to the existing command line user the non-Delphix host
  • host name - to refer to the existing non-Delphix host
These example here should work with a variety of SSH distributions, however your distribution may behave differently.  If you are unable to follow these instructions successfully, consult with your system administrator, and/or your operating system or SSH client vendor.

Procedure:

1. Log in as username to hostname

2. Verify there are no files with the .pub extension in the ~username/.ssh/ directory. If there are you must either use the existing SSH key as described above, or generate a new SSH key in a non-default location as described below.

3.Choose the type of key you wish to create: RSA or DSA for SSH protocol 2, or RSA for SSH protocol 1. If you have no preference, RSA for SSH protocol 2 is most commonly used.

4. Create your keys with no passphrase, by running:

   a. For RSA protocol 2: ssh-keygen -t rsa

       i. This command creates two new files in ~username/.ssh/: id_rsa and id_rsa.pub

   b. For DSA protocol 2: ssh-keygen -t dsa

      i. This command creates two new files in ~username/.ssh/: id_dsa and id_dsa.pub

   c. For RSA protocol 1: ssh-keygen -t rsa1

      i. This command creates two new files in ~username/.ssh/: identity and identity.pub

5. You will be prompted to enter a passphrase, and to confirm the passphrase - simply hit enter twice to create a key with no passphrase for password-less authentication.

6.Input the contents of the created .pub file in the ~username/.ssh/ directory into the publicKey field as described in CLI Cookbook: Configuring Key-Based SSH Authentication for Automation
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Posted 4 years ago

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