Skey will read a file named /etc/skey.access to determine
if the system is friendly and can use .rhost and/or unix passwd
or it they access MUST be via OTP
skey.access example
==========================
# There are two actions deny and permit
# permit allows the use of unix passwd
# format is (W/O #)
# deny|permit   IP.ADDRESS    MASK
# if the source address && MASK is equal to IP.ADDRESS
# the action deny or permit is  taken
# deny access by flash 
deny   128.96.32.20    255.255.255.255
# deny access from dail in via  annex orphan
deny    128.96.41.60    255.255.255.255
#deny access to system OUTSIDE and its slip lines
deny    128.96.58.0     255.255.255.0
# deny access from chauncey (see dvw)
deny    128.96.40.126   255.255.255.255
#allow all bellcore
permit  128.96.0.0      255.255.0.0
# deny outside networks
# deny access from TINA-C subnet
deny    192.4.160.0     255.255.255.0
#  Dart net
deny    192.4.153.0     255.255.255.0
permit  192.4.0.0       255.255.0.0
#allow default server
permit  127.0.0.1       255.255.255.255
#all others will be denied
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