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How-to-use guide for SSH
If you want to watch the video version of this, here the link (https://youtu.be/lWWlEDRO2uo).
SSH Authentication Methods
Don't use root to login. Instead create a new user
Create a new user
adduser chloe[Can be any name]
Now add chloe to sudo group
sudo usermod -aG sudo chloe.
Since you created a new user, add the public key to that user .ssh folder. It's usually located at /home/chloe. Create a new .ssh folder and create authorized_keys if not exist and paste public key inside.
# Login into remote server and navigate to /home/chloe
# Create a new .ssh folder
sudo mkdir /home/chloe/.ssh# Create file 'authorized_keys'
# Paste client public key inside
# Save it
sudo nano authorized_keysNext, change the ownership of the folder to chloe.
sudo chown -R chloe:chloe /home/chloechown - change ownership
R - Everything
chloe:chloe - user:group
/home/chloe - folder path
Now, on client side, if you're using new public/private key pair then you have to add them.
ssh-add /path/to/privatekey [eg. ~/.ssh/id_rso_new][optional]There a possibility that ssh agent inactive. Active by run
eval `ssh-agent -s`That all. Hope the steps simple enough to understand. Peace :)