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tcpwrappers

	vi /etc/default/inetd
		#ENABLE_TCPWRAPPERS=NO to
		ENABLE_TCPWRAPPERS=YES

	Create a NIS netgoup.  The netgroup will contain the required servers.
	Also, list aliases for them in the user group (FQDN).

	vi /etc/nsswitch.conf
		add "nis" to the netgroup line (first)

	vi /etc/hosts.allow

		# rsh (but not rlogin) allowed between cluster nodes for VCS and
		# Oracle installation.
		in.rshd: @itest_cluster   

		# Netbackup media servers must be able to connect to bpcd
		bpcd: @netbackup_servers

		# Enable ssh from everywhere
		sshd: ALL
		in.ftpd: server1, server2 
		in.telnetd: server1, server2 

		# Deny all other connections. This makes hosts.deny unneeded
		ALL: ALL: deny

	/etc/init.d/inetsvc stop; /etc/init.d/inetsvc start

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