How to Disable Root Access over SFTP?

Root access over SFTP is one of the most vulnerable aspects of web server security. If attackers gain access to the root account through SFTP, they can completely control your server and cause irreparable damage. Therefore, it is very important to disable root access over SFTP.

To do this, simply follow these simple steps:

Step 1: Create a New User

First of all, create a new user with limited privileges. This user will be used for SFTP access instead of root. To do this, execute the following command:

sudo adduser newuser

Step 2: Configure the Firewall

Next, you need to configure the firewall to allow access to the server only to the new user. To do this, use the following command:

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sudo ufw allow ssh sudo ufw allow out 22

Step 3: Disable Root Access

Now disable root access over SFTP. To do this, edit the SSH configuration file:

sudo nano /etc/ssh/sshd_config

Find the line PermitRootLogin yes and change it to PermitRootLogin no. After making changes, save the file and restart the SSH service:

sudo systemctl restart sshd

Congratulations! Root access over SFTP is now disabled, and your server has become more secure. Be careful and monitor security updates to protect your system from new threats.