TCP Wrappers
Some more examples:
#The following example applies to any host within the example.com domain:
ALL : .example.com
#The following example applies to any host within the 192.168.x.x network:
ALL : 192.168.
#The following example applies to any host with an
#address range of 192.168.0.0 through 192.168.1.255:
ALL : 192.168.0.0/255.255.254.0
#The following example would apply to any host within the example.com domain:
ALL : *.example.com
#The slash (/) — If a client list begins with a slash, it is treated as a file name.
#This is useful if rules specifying large numbers of hosts are necessary.
#The following example refers TCP Wrappers to the /etc/telnet.hosts file
#for all Telnet connections:in.telnetd : /etc/telnet.hosts#The following example applies to any host e.g. 0.0.0.0/255.255.255.255 :
ALL : ALL
