FSCK Otomatis
If your server/box gets stuck at fsck after a reboot or a crash, then just add the following lines to /etc/rc.conf:

fsck_y_enable=”YES”

It will run fsck automatically and will avoid your box getting stuck after reboot waiting for somebody to manually run fsck.

IPFW tanpa compile kernel
IF you don’t want to recompile kernel, just because you want to enable ipfw, you can use the following command to do so:

kldload ipfw && ipfw add 65534 allow all from any to any

Never issue the above command without ipfw add 65534 allow all from any to any else you might end up with a locked box.