It is best to work on your firewall directly from a system console and not from a remote connection because $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$

a$.$

you could be configuring the wrong firewall

b$.$

a small mistake in a rule can lock you out of the remote system

c$.$

Secure Linux does not allow remote connections.

d$.$

somebody could eavesdrop on your configuration