How do I whitelist an IP address in ssh?

How do I whitelist an IP address in ssh?

Whitelist IP Address

1. Connect to your server via SSH as the ‘root’ user.
2. Run the following command, but be sure to replace the example IP address (123.45. 67.89) with the address you want to whitelist. /scripts/cphulkdwhitelist 123.45.67.89. You will then see a response similar to the following:

How do I enable ssh access?

5.2. 2. Enable root login over SSH

1. As root, edit the sshd_config file in /etc/ssh/sshd_config : nano /etc/ssh/sshd_config.
2. Add a line in the Authentication section of the file that says PermitRootLogin yes .
3. Save the updated /etc/ssh/sshd_config file.
4. Restart the SSH server: service sshd restart.

What is Gssapi authentication in SSH?

Description. GSSAPI authentication is used to provide additional authentication mechanisms to applications. Allowing GSSAPI authentication through SSH exposes the system’s GSSAPI to remote hosts, increasing the attack surface of the system. GSSAPI authentication must be disabled unless needed.

How to restrict SSH access only to specific IPs?

Now we will allow a list of known IPs who should be able to login to SSH. For that we need to add an entry to /etc/hosts.allow file, so we go ahead and open it again with your favorite editor ?

How to allow SSH access to a particular user?

To allow SSH access for a particular user, for example sk, edit sshd_config file: Press “i” to enter into insert mode and add or modify the following line: Replace “sk” with your username. Please mind the space indentation between “AllowUsers” and “sk”.

How to allow or deny SSH access in Linux?

Allow Or Deny SSH Access To A Particular User Or Group In Linux. 1 1. Allow SSH Access to a user or group. To allow SSH access for a particular user, for example sk, edit sshd_config file: Press “i” to enter into 2 2. Deny SSH Access to a user or group. 3 3. Disable SSH Root Login.

Who is allowed to SSH into my Linux server?

Restart SSH service to take effect the changes. Now, the user sk and all the members of the “root” group are allowed to ssh into your Linux server. The other users (except sk and members of “root” group) are not allowed to access the system via ssh.