yum --enablerepo=epel -y install tripwire

# install from EPEL

/usr/sbin/tripwire-setup-keyfiles

# input pass phrase during installation like below

cd /etc/tripwire

vi twcfg.txt

# line 9: change

true

# line 12: change

4

twadmin -m F -c tw.cfg -S site.key twcfg.txt

# create the file below

vi twpolmake.pl

#!/usr/bin/perl
# Tripwire Policy File customize tool
# ----------------------------------------------------------------
# Copyright (C) 2003 Hiroaki Izumi
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
# ----------------------------------------------------------------
# Usage:
#    perl twpolmake.pl {Pol file}
# ----------------------------------------------------------------
#
$POLFILE=$ARGV[0];

open(POL,"$POLFILE") or die "open error: $POLFILE" ;
my($myhost,$thost) ;
my($sharp,$tpath,$cond) ;
my($INRULE) = 0 ;

while (<POL>) {
     chomp;
     if (($thost) = /^HOSTNAME\s*=\s*(.*)\s*;/) {
          $myhost = `hostname` ; chomp($myhost) ;
          if ($thost ne $myhost) {
               $_="HOSTNAME=\"$myhost\";" ;
          }
     }
     elsif ( /^{/ ) {
          $INRULE=1 ;
     }
     elsif ( /^}/ ) {
          $INRULE=0 ;
     }
     elsif ($INRULE == 1 and ($sharp,$tpath,$cond) = /^(\s*\#?\s*)(\/\S+)\b(\s+->\s+.+)$/) {
          $ret = ($sharp =~ s/\#//g) ;
          if ($tpath eq '/sbin/e2fsadm' ) {
               $cond =~ s/;\s+(tune2fs.*)$/; \#$1/ ;
          }
          if (! -s $tpath) {
               $_ = "$sharp#$tpath$cond" if ($ret == 0) ;
          }
          else {
               $_ = "$sharp$tpath$cond" ;
          }
     }
     print "$_\n" ;
}
close(POL) ;

perl twpolmake.pl twpol.txt > twpol.txt.new

twadmin -m P -c tw.cfg -p tw.pol -S site.key twpol.txt.new

tripwire -m i -s -c tw.cfg

tripwire -m c -s -c tw.cfg

touch hacking

tripwire -m c -s -c /etc/tripwire/tw.cfg

tripwire -m u -r /var/lib/tripwire/report/www.server-linux.info-20070517-014755.twr

# save and exit if it's all no ploblem. Then passphrase is required. Input it and then database is updated.