How do I restrict SSH to specific IP?

How do I restrict SSH to specific IP?

Here is how to restrict SSH access to certain IP addresses on a machine.

  1. Edit the /etc/hosts. allow file to include these lines, assuming your machine is on the 192.168.
  2. Edit your /etc/hosts.deny file to include this line:
  3. These lines refuse SSH connections from anyone not in the IP address blocks listed.

How do I restrict users in SSH?

To disable or deny SSH access to an user or group, you need to add/modify the following directives in your remote server’s sshd_config file.

  1. DenyUsers.
  2. DenyGroups.

How do I whitelist 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 allow only certain users to SSH my Linux server?

Restrict certain users log onto a system via SSH server

  1. Step # 1: Open sshd_config file. # vi /etc/ssh/sshd_config.
  2. Step # 2: Add a user. Only allow user vivek to login by adding following line: AllowUsers vivek.
  3. Step # 3: Restart sshd. Save and close the file.

How do I whitelist an IP in Linux?

How to whitelist IP address using CLI in CSF?

  1. Login to your linux server using root or sudo user.
  2. Go to the path /etc/csf/.
  3. Inside the CSF directory, edit the file called csf. allow.
  4. Add the IP address which you want to whitelist. Save the file.
  5. Restart the firewall after adding the IP address.

How do I SSH to a specific user?

How to Connect via SSH

  1. Open the SSH terminal on your machine and run the following command: ssh your_username@host_ip_address.
  2. Type in your password and hit Enter.
  3. When you are connecting to a server for the very first time, it will ask you if you want to continue connecting.

What is Semanage command?

The semanage command is used to adjust file contexts, port contexts, and booleans. If there is still a conflict with a particular process, that domain can be placed into permissive mode until further investigation can be completed. This leaves the rest of the system protected in enforcing mode.

How do I restrict access to a folder in Linux?

Restricting file access on Linux and UNIX

  1. Change the ownership of the folder. chown -R root:root auth_dir. The authentication process takes place in the auth_dir folder.
  2. Change the permissions for the folder. chmod -R 700 auth_dir.

How do I whitelist a Port in Linux?

Individual commands method

  1. Run the following command to allow traffic on port 80: sudo iptables -I INPUT -p tcp -m tcp –dport 80 -j ACCEPT.
  2. Run the following command to allow traffic on port 443: sudo iptables -I INPUT -p tcp -m tcp –dport 443 -j ACCEPT.

How do I whitelist an IP in Ubuntu server?

Here are the commands to whitelist an IP address on your Linux server, both incoming and outgoing.

  1. Example: How to whitelist IP address 192.168.0.1.
  2. Step 1: Log into the server via SSH.
  3. Step 2: Allow incoming connections from 192.168.0.1.
  4. Step 3: Allow outgoing connections to 192.168.0.1.
  5. Additional Options:

How do I restrict IP address?

Block a range of IP addresses

  1. Go to Clarity > Settings > IP blocking, and select Block IP address.
  2. On the Block IP address screen, make your selections and select Add. Name: Enter a friendly name to identify the range of IP addresses. Block my current IP: Check the box if you want to exclude your IP address.