Access git repository using private keys

Posted By Mohit Shakya | 31-Dec-2017

Hi,
We'll learn today how to access git ssh repository protocol using private keys.
So following is the step by step process to use ssh protocol for git.

-> first create an SSH key. (Generate SSH/GPG Keys)
using following steps:

$ ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/home/sysAdmin/.ssh/id_rsa): /home/sysAdmin/gitPVT
Enter passphrase (empty for no passphrase): 
Enter same passphrase again:
Your identification has been saved in /home/sysAdmin/gitPVT.
Your public key has been saved in /home/sysAdmin/gitPVT.pub.
The key fingerprint is:
SHA256:Um1kS4ce1vMLeo2wL87Uehn4P6Xz+Hx4PGHPw7ly+Bs mohit@mohit.shakya
The key's randomart image is:
+---[RSA 2048]----+
|          +o.    |
|         =+oo    |
|        .o+. o   |
|       . .o . .  |
|      . S  = + . |
|       .  +.+ oo.|
|          .+.o+E+|
|         o..=o=OB|
|         .+o .*XX|
+----[SHA256]-----+

-> login to your git account.
-> Go to settings section (there in top right section your profile icon dropdown -> setting.)
-> Now go to SSH and GPG keys (using 'Personal Settings' side menu)
-> click 'new SSH key'
-> paste your public file text

here, and save the key.
-> now you can perform all

GitHub repo I/O operation just by loading key in your terminal.

following are the loading steps:

$ chmod 400 /home/sysAdmin/gitPVT;
$ eval "$(ssh-agent -s)";
$ ssh-add /home/sysAdmin/gitPVT;

For instance, after loading keys in your terminal:
let say your repository: git@github.com:myLabs/baseRepo.git

* To clone the repository you'll use the following command:

$ git clone git@github.com:myLabs/baseRepo.git

* To push/pull data

$ git pull (for pull)
$ git push (for push)

I hope this blog will be helpful to you.
Thanks.

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