Linux Generate Ssh Key Gitlab

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Linux and Mac OS X both come with support for SSH and SSH keys out of the box. Launchpad uses SSH keys to authenticate your computer with your Launchpad account. This guide shows you how to get that done.

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Nov 13, 2017 This New Video shows how to generate SSH keys for GitLab Profile (2017) in user settings, option just above GPG Keys for windows OS using Git Bash GUI. It actually creates a Public SSH Key. If you don't already have an SSH key, you must generate a new SSH key.If you're unsure whether you already have an SSH key, check for existing keys. If you don't want to reenter your passphrase every time you use your SSH key, you can add your key to the SSH agent, which manages your SSH keys and remembers your passphrase.

The first thing you need to do is generate your SSH keypair. A keypair, as the name implies, consists of 2 parts: the public key and the private key.

Public Key

Your public key is placed on remote servers so that they can check back with you to see that you are who you say you are.

Private Key

Your private key should NEVER leave your computer! This is the main file that authenticates you. It contains the special unique data that identifies you.

Generating a Keypair

Generating a keypair is very easy.

  1. Open a terminal
  2. Enter in the following in the terminal:$ ssh-keygen -t rsa -b 4096
  3. Accept the defaults, to save your public and private keys to ~/.ssh
  4. Open your public key (~/.ssh/id_rsa.pub) in a text editor (GEdit or Kate on Linux, TextEdit on Mac OS X)

Generate Ssh Key Gitlab

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When you use Launchpad and Bazaar, it likes to use the SSH keys to authenticate you. We need to add our public key to Launchpad.

Adding Your Public Key to GitLab

  1. Open your browser to GitLab and log in
  2. Go to your home page and click on the 'Profile / Settings' link
  3. Click on the 'SSH Keys' tab (Note: not the OpenPGP keys!)
  4. Paste that public key into the text box at the bottom of the page
  5. Click the 'Add Key' button at the bottom of the page
Linux Generate Ssh Key Gitlab

And you're done!

More In Depth Example

Linux Generate Ssh Key Github

This is specific to Mac OS X 10.6, but should be similar on any Mac or Linux system.

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  1. Open Terminal
  2. Change to hidden SSH folder $ cd ~/.ssh/
  3. Generate a key ssh-keygen -t rsa -b 4096 Prompts for above are as follows, just hit enter for the file name, and then enter the password twice and you are done.
    1. Enter file in which to save the key (/Users/username/.ssh/id_rsa): [Just Hit Enter]
    2. Enter passphrase (empty for no passphrase): [Enter a unique password]
    3. Enter same passphrase again: [Renter a unique password]
    4. Make sure you remember your password you enter
    5. Now you should have 2 new files in your folder, named id_rsa and id_rsa.pub which are your private and public keys respectively.
  4. Set permissions on the keys you just created to be as restrictive as possible. chmod 400 id_rsa*
  5. Modify the SSH config file to automatically use your just created key every time you connect to launchpad
    1. Use your choice of text editor to edit ~/.ssh/config
    2. sudo vi config
    3. Hit i to enter insert mode
    4. Add the following text to the bottom, where it says yourlaunchpdusername replace with your gitlab user name. ( to get yourgitlabname visit https://gitlab.com/~ and it will redirect to add your username to the url after the ~ )Host bazaar.launchpad.net
 IdentityFile ~/.ssh/id_rsa
 User yourgitlabusername
    5. Hit Escape
    6. Hit ZZ
  6. Copy the contents of your public key file on the Maccat ~/.ssh/id_rsa.pub pbcopy Linux users or Mac users can alternatively open ~/.ssh/id_rsa.pub with your favourite text editor or omit pbcopy and just copy it after running the command cat ~/.ssh/id_rsa.pub.
  7. Finally Edit your SSH keys on launchpad as described in Adding Your Public Key to GitLab above. ( you can click on This Link which will take you directly to the page to update your SSH keys on gitlab ). Make sure you are on SSH keys and not PGP keys here.