The doorman guards the door of a server, manipulating firewall rules to admit only recognized parties

doorman-0.5.1
.............\acinclude.m4
.............\aclocal.m4
.............\AUTHORS
.............\ChangeLog
.............\config.h.in
.............\configure
.............\configure.ac
.............\config_win.h
.............\constants.h
.............\COPYING
.............\depcomp
.............\doormand.8
.............\doormand.c
.............\doormand.cf.5
.............\doormand.cf.EXAMPLE
.............\guestlist.5
.............\guestlist.EXAMPLE
.............\INSTALL
.............\install-sh
.............\ipchains_add
.............\ipchains_delete
.............\iptables_add
.............\iptables_delete
.............\knock.1
.............\knock.c
.............\KNOCK.CFG
.............\KNOCK.HTM
.............\KNOCK.TXT
.............\knockcf
.............\knockcf.5
.............\KNOCKCFG.HTM
.............\KNOCKCFG.TXT
.............\lexer.l
.............\lstat.c
.............\Makefile.am
.............\Makefile.in
.............\missing
.............\mkinstalldirs
.............\NEWS
.............\README
.............\README.TXT
.............\Replacement_fns
.............\...............\bpf.h
.............\...............\daemon.c
.............\...............\getopt.c
.............\...............\gettimeofday.c
.............\...............\hmac_md5.c
.............\...............\hmac_md5.h
.............\...............\md5.c
.............\...............\md5.h
.............\...............\pcap.h
.............\roll_distribution
.............\utilities.c
.............\utilities.h
.............\WINNOCK.DSP
.............\WINNOCK.DSW

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