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Key-Based ssh Login


In this post we will look at how to use ssh key-based login.


[pre class="brush:bash"]
ssh-keygen -t rsa

# copy id_rsa.pub to the server. Then
cp authorized_keys authorized_keys_Backup
cat id_rsa.pub >> authorized_keys

# if .ssh or authorized_keys is not available,
#follow the following instructions to create them,
# create the .ssh directory:
mkdir ~/.ssh
# set the right permissions:
chmod 700 ~/.ssh
# create the authorized_keys file:
touch ~/.ssh/authorized_keys

# set the right permissions:
chmod 600 ~/.ssh/authorized_keys

cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys[/pre]

Source1, Source2

How to generate a key pair in MobaXterm?

Enter the following command in the MobaXterm terminal
[pre class="brush:bash"]ssh-keygen -t rsa -q -f ~/.ssh/id_rsa[/pre]
This will generate the private and public key pair inside .ssh folder located in your home directory (source).

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