Final answer:
To allow any host to have access to your system, add the line 'allow from all' to the /etc/ file.
Step-by-step explanation:
To allow any host to have access to your system, you need to modify the /etc/ file on your system. You can accomplish this by adding the following line item: allow from all This line allows access from any host to your system, granting unrestricted access. It is important to note that this can pose a security risk, so it should only be used in certain situations where strict access controls are not necessary.