3.4.2 Ensure /etc/hosts.allow is configured (Scored)

Level 1 - Server
Level 1 - Workstation 

The /etc/hosts.allow file specifies which IP addresses are permitted to connect to the host. It is intended to be used in conjunction with the /etc/hosts.deny file.

The /etc/hosts.allow file supports access control by IP and helps ensure that only authorized systems can connect to the system.

Run the following command and verify the contents of the /etc/hosts.allow file:

# cat /etc/hosts.allow

Run the following command to create /etc/hosts.allow:

# echo "ALL: <net>/<mask>, <net>/<mask>, ..." >/etc/hosts.allow

where each <net>/<mask> combination (for example, “”) represents one network block in use by your organization that requires access to this system.

Contents of the /etc/hosts.allow file will vary depending on your network configuration.

  • ubuntu1604/3/4/2.txt
  • Last modified: 2017/05/02 13:39
  • by Piotr Kłoczewski