If your system hangs when you are configuring SKIP and you do not have access to your machine, reboot your machine in the single-user mode and become root.
With a text editor, such as vi, edit the file acl.network_interface in the /etc/skip/ directory so that line
skiphost -i <network_interface>-o on |
reads
skiphost -i network_interface -o off |
This will to disable SKIP.
Reboot your machine normally to clean up the file system.
You, then, as root, may reconfigure your access control list as your security policy dictates.
If your system hangs when you are configuring SKIP and you still have access to your machine and can become root, enter
# skiphost -o off -i network_interface |
This will disable SKIP on the network interface
Then, as root, you may reconfigure your access control list as your security policy dictates.