Question

In a hardened Linux environment, the firewall's default policy should be:

A) Allow all incoming traffic
B) Deny all incoming traffic
C) Allow all outgoing traffic
D) Deny all outgoing traffic

Answer 1

In a hardened Linux environment, the firewall's default policy should be 'Deny all incoming traffic'. This helps to protect the system from unauthorized access and potential security breaches.

Step-by-step explanation:

In a hardened Linux environment, the firewall's default policy should be Deny all incoming traffic. This means that by default, the firewall should block all incoming connections unless explicitly allowed. This helps to protect the system from unauthorized access and potential security breaches.

A hardened Linux environment refers to a system that has been secured against various threats. By denying all incoming traffic, the firewall acts as a barrier, only allowing specific connections that are needed for the system to function properly.

Denying all incoming traffic can be achieved by using a default firewall policy of DROP instead of ACCEPT. This policy will drop all incoming packets by default unless there are specific rules to allow certain types of traffic.