GitHub per SSH-Key einrichten und erreichen

SSH CLI apps location on Windows Systems

C:\Windows\System32\OpenSSH
location of SSH keys on Windows Systems

C:\Users\%USERNAME%\.ssh
C:\Users\%USERNAME%\.ssh\known_hosts

create SSH key pair für GitHub:

run in Terminal:

ssh-keygen -t ed25519 -C "your_email@example.com"

example

ssh-keygen -t ed25519 -C "peter.pan@gmx.aut"

C:\Users\marcu>ssh-keygen -t ed25519 -C "marcus.trommen@gmx.net"
Generating public/private ed25519 key pair.
Enter file in which to save the key (C:\Users\marcu/.ssh/id_ed25519):
Created directory 'C:\\Users\\marcu/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in C:\Users\marcu/.ssh/id_ed25519
Your public key has been saved in C:\Users\marcu/.ssh/id_ed25519.pub
The key fingerprint is:
SHA256:xZURojfPqeU2zCbKxf/plR9/FR5XSdiwskfmzldyr1A peter.pan@gmx.aut
The key's randomart image is:
+--[ED25519 256]--+
|          . ++ o.|
|         o o. . o|
|        . =  . o.|
|         o + .+o=|
|        S   = EB+|
|         . * .o.B|
|          = O  O=|
|       . o = o oX|
|        o   .o=.=|
+----[SHA256]-----+

generates with default values in folder C:\Users\%USERNAME%\.ssh

following files:

id_ed25519 and id_ed25519.pub

Add SSH key to SSH-Agent

see: https://docs.github.com/de/authentication/connecting-to-github-with-ssh/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent oben PowerWhell Window with Admin rights and run following commands
```
# start the ssh-agent in the background
Get-Service -Name ssh-agent | Set-Service -StartupType Manual
Start-Service ssh-agent
```
add the generated key:
```
ssh-add c:/Users/YOU/.ssh/id_ed25519
```
add the SSH Key to the GitHub account

https://docs.github.com/de/authentication/connecting-to-github-with-ssh/adding-a-new-ssh-key-to-your-github-account

Open in web browser https://github.com/settings/keys and add the public key

Test ssh connection to GitHub

Open Windows terminal (cmd) and enter the command:

ssh -T git@github.com

C:\Users\marcu>ssh -T git@github.com
The authenticity of host 'github.com (140.82.121.3)' can't be established.
ED25519 key fingerprint is SHA256:+DiY3wvvV6TuJJhbpZisF/zLDA0zPMSvHdkr4UvCOqU.
This key is not known by any other names.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added 'github.com' (ED25519) to the list of known hosts.

create new GitHub Repo and connect it to an existing local Repo

Link to article

SSH: git@github.com:marctrommen/my_project.git
```
git remote add origin git@github.com:marctrommen/my_project.git
git push
```