1. SSH Key তৈরি

--> ssh-keygen -t ed25519 -C "nomanit-vps-github"

Public key দেখুন:

--> cat ~/.ssh/id_ed25519.pub

এই key GitHub → Settings → SSH and GPG keys → New SSH Key-এ add করুন।

2. SSH Config

cat > ~/.ssh/config << 'EOF'
Host github.com
    HostName github.com
    User git
    IdentityFile ~/.ssh/id_ed25519
    IdentitiesOnly yes
EOF
chmod 600 ~/.ssh/config

3. GitHub Connection Test

--> ssh -T git@github.com

সফল হলে:

-->Hi nomancse19! You've successfully authenticated, but GitHub does not provide shell access.

4. Private Repository-তে SSH Remote সেট করুন

HTTPS:

--> https://github.com/username/repository.git

এর পরিবর্তে SSH:

--> git@github.com:username/repository.git

উদাহরণ:

--> git remote set-url origin git@github.com:nomancse19/nomanit.git

Verify:

--> git remote -v

5. Repository Access Test

--> git ls-remote origin

এটি remote repository-এর branch/ref information দেখাবে এবং কোনো file পরিবর্তন করবে না।

এরপর সাধারণভাবে:

git fetch origin

git pull origin main

git push origin main