# GitHub SSH Key 建置與設定指引

作業程序：

Generating a new SSH key
Adding SSH key to the ssh-agent
Add the SSH key to GitHub account

# macOS

Generating a new SSH key

$ ssh-keygen -t ed25519 -C "alanjui.1960@gmail.com"

1

Adding SSH key to the ssh-agent

(1) Start the ssh-agent in the background.
```
 $ eval "$(ssh-agent -s)"
```
(2) If you're using macOS Sierra 10.12.2 or later, you will need to modify your ~/.ssh/config file to automatically load keys into the ssh-agent and store passphrases in your keychain.
```
vim ~/.ssh/config
```
《config》:
```
Host *
  AddKeysToAgent yes
  UseKeychain yes
  IdentityFile ~/.ssh/id_ed25519
```
(3) Add your SSH private key to the ssh-agent and store your passphrase in the keychain.
```
$ ssh-add -K ~/.ssh/id_ed25519
```
Add the SSH key to GitHub account
```
$ pbcopy < ~/.ssh/id_ed25519.pub
```
1

# Linux

Generating a new SSH key

$ ssh-keygen -t ed25519 -C "alanjui.1960@gmail.com"

Adding SSH key to the ssh-agent

Start the ssh-agent in the background.
```
$ eval $(ssh-agent -s)
```

Add the SSH key to GitHub account

ArchLinux

$ sudo pacman -S xclip
$ xclip -selection clipboard < ~/.ssh/id_ed25519.pub

1
2

Debian / Ubuntu

$ sudo apt install xclip
$ xclip -selection clipboard < ~/.ssh/id_ed25519.pub

1
2