Which command will verify the syntax of the hosts.allow and host.deny files?

Which command will verify the syntax of the hosts.allow and host.deny files?

Which command will verify the syntax of the hosts.allow and host.deny files?

A.
tcpdchk

B.
tcpdmatch

C.
verify –tcp

D.
ipswitch

Explanation:
From the man pages:
tcpdchk examines your tcp wrapper configuration and reports all potential and real problems it can find. The program examines the tcpd access control files (by default, these are /etc/hosts.allow and /etc/hosts.deny), and compares the entries in these files against entries in the inetd network configuration file.
tcpdchk reports problems such as non-existent pathnames; services that appear in tcpd access control rules, but are not controlled by tcpd; services that should not be wrapped; non-existent host names or non-internet address forms; occurrences of host aliases instead of official host names; hosts with a name/address conflict; inappropriate use of wildcard patterns; inappropriate use of NIS netgroups or references to non-existent NIS netgroups; references to non-existent options; invalid arguments to options; and so on.



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