Problems with version 3.1 not seeing your hosts.allow, and hosts.deny after installing FreeBSD v3.1 ?
The problem with this is, if you
compiled TCP Wrappers from the ports, then the 3.1 expects them to be in the /usr/local/etc not in the /etc directory. So, these files are no longer seen in the /etc directory anymore, they are seen
in the /usr/local/etc instead, so to make sure your system is able to use these files, make sure they are in the /usr/local/etc and NOT in the /etc directory.