1. Check existing keys
   $ cd ~/.ssh
$ ls
$ cat ~/.ssh/id_rsa.pub

Note for Windows 10

• Just start from step 2

2. $ ssh-keygen -t rsa -b 4096 -C "your comment"
   ex $ ssh-keygen -t rsa -b 4096 -C "msi-laptop"
   ed25519 ssh-keygen -t ed25519 -C "your comment"

Note for Windows 10

• It will be saved in the default location (c/Users/you/.ssh/id_rsa)

3. Generating public/private rsa key pair.
   Enter file in which to save the key (/home/user/.ssh/id_rsa):
   /** Leave it empty, just hit enter **/

4. $ eval "$(ssh-agent -s)"
$ ssh-add <path to private SSH key>
   ex. $ ssh-add ~/.ssh/id_rsa
   /** Add to agent **/

5. $ cat ~/.ssh/id_rsa.pub

Add SSH Keys on GitHub/ GitLab/ Bitbucket
then…check the keys

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ssh -T [e-mail]

Hi wolfzxcv! You've successfully authenticated, but GitHub does not provide shell access.

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ssh -T [e-mail]

Welcome to GitLab, @neja.chou!

---

$ ssh -T [e-mail]

logged in as nejachou

You can use git or hg to connect to Bitbucket. Shell access is disabled

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Might have to install this, in order to clone from remote sites properly

sudo apt install ssh-askpass

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Login from A(you) to B(server) without password

• 放在使用者資料夾下的 .ssh 資料夾中，其中 id_rsa 為私鑰、id_rsa.pub 則為公鑰
• 1. Check existing keys
     $ cd ~/.ssh
$ ls
$ cat ~/.ssh/id_rsa.pub
• 2. Upload the key
  • Point to the path where id_rsa.pub locates $ cd ~/.ssh
  • Copy the key to the server you wanna connect $ ssh-copy-id [B's user]@[B's host]
    ex. ssh-copy-id pmduser@10.20.30.215
  • Now you can login to B without password