Best Way To Fix SSH Root Access Denied In Ubuntu
December 20, 2021
If you are getting Ubuntu SSH root access denied error on your PC, check out these solution ideas.
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Today everyone knows that Linux systems get root access, and bypassing root access, they are passed only to the outside world. For security reasons, it is not recommended to use SSH root access for unauthorized users. Because any hacker can make sure that you and your account have brute-force access to your system.
So it’s best to have a different account that clients use regularly, and then changing it will help the root user su when needed. Before you start, make sure you have a persistent user account and have most of su or sudo to get to the root cause.
In Linux it is very easy to create a separate account, log in as root and just run this “adduser” command to create a separate user. After creating a user, just follow some of the following steps and disable root access via SSH.
We use toConfigure the main sshd folder to disable root login. This can prevent hacking and protect from being rooted. We will also see how to re-enable root search and how this will restrict SSH access based on male and female list.
Disable SSH Root Connection
Open the / etc / ssh / sshd_config file as an administrator and move the following line: FROM: #PermitRootLogin prohibit-password TO: PermitRootLogin yes.Restart SSH Specialist: $ sudo systemctl restart ssh.
To disable the connection pattern, open the main SSH configuration file / etc / ssh / sshd_config with your choice in an editor.
# vi / etc / ssh / sshd_config
#PermitRootLogin no
Remove the “#” sign at the beginning of the “About” line. Make a line something like this.
No PermitRootLogin
# /etc/init.d/sshd restart
As the main one, edit the sshd_config file in / etc / ssh / sshd_config: nano / etc / ssh / sshd_config.In the Authentication section of the ad, add a line that says PermitRootLogin yes :)Save the updated file / etc / ssh / sshd_config.Restart SSH server: restart sshd service.
If you try to log in as root, an “Access Denied” error is displayed.
Login to
For security reasons, it is actually not recommended to allow SSH root access to unwanted users. Because every hacker can try to guess the password as well as gain access to your system. Therefore, it is better to have other accounts that you use regularly and after which you switch to the root user using the su command – if necessary.
So now log in as a normal user and, if so, use the “su” command to switch to the root user.
Login as: tecmintAccess closedPassword [secure email] :Last entry: Tue 17:37:56 16 next year from 172.16.25.125[ [secure email addressEmail] ~] $ su -Password:[ [secure email address] ~] #
Enable SSH Root Vi Connection
# / etc / ssh / sshd_config
Look at the next line, start with a “#” and cut the file.
# PermitRootLogin-Nr.
# /etc/init.d/sshd restart
Restrict Connections For SSH Users
If you have a large number of user accounts associated with the system, please be aware that we are restricting remote access to help you with those who really need users in this situation. Open the file / etc / ssh / sshd_config.
# test template / etc / ssh / sshd_config
Add the AllowUsers line at the bottom of the file, separating it with a list of usernames. For example, users tecmint and sheena have remote ssh access.
Allow user tecmint sheena
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Note that in order to change the root, you first had to run sudo?
Usually Ubuntu is configured in policy so that in addition to the root user you can “sudo” make games, but you cannot log in, even if root is direct. This is a security issue because sudo determines which street was logged in and which street. It can also potentially restrict what you are allowed.
To authorize the root user account found in Ubuntu, you just need to provide the root credentials. When setting a password, be sure to use a strong, unique password. A strong password is usually the most important aspect of your account security.
If you are using putty while using ssh and trying to connect to your old PC, you should definitely use non-root login. Typically, you are logged in with a regular user account and then just run this sudo command inshell prompt to run the scope of these commands, which you think should be run as root.
In fact, there is often a way to overcome this limitation. This usually involves making changes to the sshd_config file. But usually you have no reason to allow root logins when sudo su -root can do the same and combined with more security / accountability.
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