Generate Ssh Key With Expiration Date
- Generate a GPG/PGP key using SSH. In addition to being able to use the GnuPG Keys tool to generate a gpg key, you can also use SSH. Generating a new Gnupg (gpg) key; Generating a new Gnupg (gpg) key. Select Encryption Type; Enter Key Size(1024 is standard) Enter Expiration Date; Enter Name; Enter Email Address; Enter Comment(Description.
- We have a requirement to create RSA key pair using Azure key vault and copy the RSA public key to external system. The requirement is the external system will encrypt the data using public key and internal system will talk to azure key vault and de-crypt the data. I don't have access to Azure key vault yet, so going through the documentation.
I'm setting up git in a corporate environment. Git operations will be primarily though SSH using a single account with SSH keys used for access control. (http will be used for account configuration, web-based code browsing but little else.) But the idea of having SSH keys that never expire sounds foolish to me. I'm trying to create an ssh key for another user. I'm logged in as root. Can I just edit the files generated by ssh-keygen and change root to the user I want? If you generate the key for the user you also have to have a secure method of getting the private key and it's pass phrase to the user. There's no user information in the SSH keys. Out of curiosity, and also to check whether this is doable at all: Is there any way using standard tools to assign an expiry date only to the passphrase of an ssh private key, or to enforce the. WinSCP and Putty use, and Puttygen generates, SSH keys, and SSH keys do not expire. (Unlike for example PGP signed-keys and X.509/SSL/TLS certificates for keys.). (Update August 2019: as shown in 'SSH certificate authentication for GitHub Enterprise Cloud', SSH allows one SSH key (a certificate authority) to sign another SSH key, along with information about the developer it belongs to. And that include an expiration date).
You generate an SSH key through macOS by using the Terminal application. Once you upload a valid public SSH key, the Triton Compute Service uses SmartLogin to copy the public key to any new SmartMachine you provision.
Joyent recommends RSA keys because the node-manta CLI programs work with RSA keys both locally and with the ssh agent. DSA keys will work only if the private key is on the same system as the CLI, and not password-protected.
About Terminal
Terminal is the terminal emulator which provides a text-based command line interface to the Unix shell of macOS.
To open the macOS Terminal, follow these steps:
- In Finder, choose Utilities from the Applications folder.
- Find Terminal in the Utilities listw.
- Open Terminal.
The Terminal window opens with the commandline prompt displaying the name of your machine and your username.
Generating an SSH key
An SSH key consists of a pair of files. One is the private key, which should never be shared with anyone. The other is the public key. The other file is a public key which allows you to log into the containers and VMs you provision. When you generate the keys, you will use ssh-keygen
to store the keys in a safe location so you can bypass the login prompt when connecting to your instances.
To generate SSH keys in macOS, follow these steps:
Enter the following command in the Terminal window.
This starts the key generation process. When you execute this command, the
ssh-keygen
utility prompts you to indicate where to store the key.Press the ENTER key to accept the default location. The
ssh-keygen
utility prompts you for a passphrase.- Type in a passphrase. You can also hit the ENTER key to accept the default (no passphrase). However, this is not recommended.
You will need to enter the passphrase a second time to continue.
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After you confirm the passphrase, the system generates the key pair.
Your private key is saved to the id_rsa
file in the .ssh
directory and is used to verify the public key you use belongs to the same Triton Compute Service account.
Never share your private key with anyone! |
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Your public key is saved to the id_rsa.pub
;file and is the key you upload to your Triton Compute Service account. You can save this key to the clipboard by running this:
Importing your SSH key
Generate Ssh Key With Expiration Date Code
Now you must import the copied SSH key to the portal.
- After you copy the SSH key to the clipboard, return to your account page.
- Choose to Import Public Key and paste your SSH key into the Public Key field.
- In the Key Name field, provide a name for the key. Note: although providing a key name is optional, it is a best practice for ease of managing multiple SSH keys.
- Add the key. It will now appear in your table of keys under SSH.
Troubleshooting
You may see a password prompt like this:
This is because:
- You did not enter the correct passphrase.
- The private key on your Macintosh (
id_rsa
) does not match the public key stored with your Triton Compute Service account. - The public key was not entered correctly in your Triton account.
What are my next steps?
Right in the portal, you can easily create Docker containers, infrastructure containers, and hardware virtual machines.
Generate Ssh Key With Expiration Date Online
In order to use the Terminal to create instances, set up triton
and CloudAPI as well as the triton-docker
commandline tool.