Wednesday, 14 August 2013

Restricting Superuser Access in Ubuntu

In a Linux system it is a vulnerable problem when anyone trying to login as root from a remote terminal. There is an easy way to disable a person to login into system using a remote terminal as root. In other words you can say, the admin can restrict the superuser access(else known as Root access) to general public or any user.

Follow the steps exactly mentioned below.

1. Login to the system

2. Open terminal

3. su – or sudo

4. vim /etc/ssh/sshd_config

or open the file sshd_config in the /etc/sshd directory

5. Find line PermitRootLogin yes

change it to PermitRootLogin no

6 . Restart the service

/etc/init.d/sshd restart

Now your Ubuntu server/single user system 
 is secure.


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