Enable SSH Key based authentication and Disable Password Authentication in ssh
Set Up SSH Key Authentication and Turn Off Password Login
Overview: This article covers hardening SSH authentication by enabling SSH key-based authentication and disabling password authentication. It involves modifying the /etc/ssh/sshd_config file to set PubkeyAuthentication yes and PasswordAuthentication no, followed by restarting the SSH service to apply the changes.
Hardening Authentication in SSH
- Enable SSH Key based authentication
- Disable Password Authentication in sshd configuration file
root@gateway :vi /etc/ssh/sshd_config
PubkeyAuthentication yes
# To disable tunneled clear text passwords, change to no here!
PasswordAuthentication no
:wq
root@gateway : service sshd restart
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