/usr/share/logwatch/scripts/services/dhcpd is in logwatch 7.4.1-2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 | #!/usr/bin/perl
use strict;
##########################################################################
# $Id: dhcpd 236 2014-09-15 22:10:32Z bjorn1 $
##########################################################################
########################################################
## Copyright (c) 2008 Kirk Bauer
## Covered under the included MIT/X-Consortium License:
## http://www.opensource.org/licenses/mit-license.php
## All modifications and contributions by other persons to
## this script are assumed to have been donated to the
## Logwatch project and thus assume the above copyright
## and licensing terms. If you want to make contributions
## under your own copyright or a different license this
## must be explicitly stated in the contribution an the
## Logwatch project reserves the right to not accept such
## contributions. If you have made significant
## contributions to this script and want to claim
## copyright please contact logwatch-devel@lists.sourceforge.net.
#########################################################
my $Detail = $ENV{'LOGWATCH_DETAIL_LEVEL'} || 0;
my %data;
my %clientrequest;
# This filter is very basic... much more could be done with it
while (my $line = <STDIN>) {
chomp $line;
$line =~ s/^\s+//;
$line =~ s/\s+$//;
next unless $line;
if (
# All of these entries are generated at startup unless -q option used :(
# Name of ISC was changed in 2004
($line =~ /^Internet (Systems|Software) Consortium DHCP Server/) or
($line =~ /^Copyright/) or
($line =~ /^All rights reserved/) or
($line =~ /^Please contribute if you find this software useful/) or
($line =~ /^For info, please visit/) or
# Other lines to ignore
($line =~ /^Wrote .* to leases file\./) or
($line =~ /^already acking lease/) or
($line =~ /^dhcpd shutdown .*succeeded/) or
($line =~ /^dhcpd startup .*succeeded/) or
($line =~ /^Sending on/) or
($line =~ /^Dynamic and static leases present for/) or
# backup server pool balancing
($line =~ /^balanc(?:ed|ing) pool/) or
# apparently these are normal with dynamic update and balancing
#[TD] dhcpd: bind update on 192.168.148.197 from subnet148 rejected: ...
($line =~ /rejected: incoming update is less critical than outgoing update/) or
# Remove host declaration host_name or remove 10.0.0.199
($line =~ /^from the dynamic address pool for/) or
($line =~ /^parse_option_buffer: option [\w-]+ \(\d+\) larger than buffer/) or
($line =~ /xid mismatch/) or
($line =~ /^BOOTREQUEST/) or
($line =~ /^DHCPACK/) or
($line =~ /^DHCPNAK/) or
($line =~ /^DHCPINFORM/) or
($line =~ /^DHCPDISCOVER from .* via \S+$/) or
($line =~ /^DHCPREQUEST/) or
($line =~ /^DHCPRELEASE/) or
($line =~ /^Abandoning IP address/) or
($line =~ /^Unable to add (forward|reverse) map/) or
($line =~ /^Can\'t update (forward|reverse) map/) or
($line =~ /^Not searching LDAP since ldap-server, ldap-port and ldap-base-dn were not specified in the config file/) or
($line =~ /^Solicit message from/) or
($line =~ /^Sending Advertise to/) or
($line =~ /^pool [0-9a-f]+ /)
) {
# Ignore these lines
} elsif ($line =~ s/Listening on\s+//) {
$data{'DHCP Server Listening On'}{$line}++;
} elsif (
($line =~ /^you want, please write a subnet declaration/) or
($line =~ /^in your dhcpd.conf file for the network segment/) or
($line =~ /^to which interface [a-z\d\.]+ is attached./) or
($line =~ /^If you did not get this software from ftp.isc.org, please/) or
($line =~ /^get the latest from ftp.isc.org and install that before/) or
($line =~ /^requesting help./) or
($line =~ /^If you did get this software from ftp.isc.org and have not/) or
($line =~ /^yet read the README, please read it before requesting help./) or
($line =~ /^If you intend to request help from the dhcp-server\@isc.org/) or
($line =~ /^mailing list, please read the section on the README about/) or
($line =~ /^help directly to the authors of this software - please/) or
($line =~ /^submitting bug reports and requests for help./) or
($line =~ /^Please do not under any circumstances send requests for/) or
($line =~ /^help directly to the authors of this software - please/) or
($line =~ /^send them to the appropriate mailing list as described in/) or
($line =~ /^the README file./)
) {
# Do nothing
} elsif (
# If this DHCP server is authoritative for that subnet
($line =~ /^please write an `authoritative;' directive either in the/) or
($line =~ /^subnet declaration or in some scope that encloses the/) or
($line =~ /^subnet declaration - for example, write it at the top/) or
($line =~ /^of the dhcpd.conf file\./)
) {
# Do nothing
} elsif ($line =~ s/^exiting./DHCP server exiting./) {
$data{'Generic error'}{$line}++;
} elsif ($line =~ /^There's already a DHCP server running./) {
$data{'Generic error'}{$line}++;
} elsif ($line =~ s/^\*\* Ignoring requests on ([a-z\d\.]+). If this is not what\s*$/Ignoring interface $1/) {
$data{'Config error'}{$line}++;
} elsif ($line =~ s/^No subnet6? declaration for ([a-z\d\.]+) ([\(\)\d\.ia-fA-F:]+).\s*$/No subnet declaration for $1 $2/) {
$data{'Config error'}{$line}++;
} elsif ($line =~ /^If this DHCP server is authoritative for that subnet,$/) {
$data{'Config error'}{'missing authoritative directive'}++;
} elsif ($line =~ s/^WARNING: (Host declarations are global).\s+.*$/\1/) {
$data{'Config error'}{$line}++;
} elsif ($line =~ s/Not searching LDAP\s+.*$/No support for LDAP configured/) {
$data{'Config error'}{$line}++;
} elsif ($line =~ s/^DHCPOFFER on ([\d\.]+) to ([a-f\d:]+) via (\S+)\s*$/$1 -> $2 ($3)/) {
if ($Detail >= 5) {
$data{'Addresses Leased'}{$line}++;
}
} elsif ($line =~ s/^DHCPOFFER on ([\d\.]+) to ([a-f\d:]+) \(([^)]+)\) via (\S+)\s*$/$1 -> $2 [$3] ($4)/) {
if ($Detail >= 5) {
$data{'Addresses Leased'}{$line}++;
}
} elsif ($line =~ s/^DHCPOFFER on ([\d\.]+) to ("")(?: \(([^)]+)\))? via (\S+)\s*$/$1 -> $2 [$3] ($4)/) {
if ($Detail >= 5) {
$data{'Warnings'}{$line}++;
}
} elsif ($line =~ s/^DHCPDECLINE of ([\d\.]+) from ([\w:]+) (?:\(([^)]+)\) )?via ([\d\.]+).*$/$1 -> $2 [$3] ($4)/) {
if ($Detail >= 5) {
$data{'Addresses Declined'}{$line}++;
}
} elsif ( ($line =~ s/^BOOTREPLY for ([\d\.]+) to ([a-zA-Z\d_-]+) \(([a-f\d:]+)\) via (\S+)\s*$/$1 -> $3 [$2] ($4\/bootp)/)
or ($line =~ s/^BOOTREPLY on ([\d\.]+) to ([a-f\d:]+) via (\S+)\s*$/$1 -> $2 [] ($3\/bootp)/) ) {
if ($Detail >= 5) {
$data{'Addresses Leased'}{$line}++;
}
} elsif ($line =~ /^(Request|Confirm|Rebind|Renew|Release) message from ([0-9a-fA-F:]+)/) {
$clientrequest{$2} = $1;
} elsif ($line =~ s/^Sending Reply to ([0-9a-fA-F:]+) port \d+/$1 (IPv6)/) {
my $clientrequest = $clientrequest{$1};
undef($clientrequest{$1});
if (($Detail >= 5) and ($clientrequest eq 'Request')) {
$data{'Addresses Leased'}{$line}++;
} elsif (($Detail >= 10) and ($clientrequest =~ /Rebind|Renew/)) {
$data{"Addresses $clientrequest"}{$line}++;
}
} elsif ($line =~ /^Client ([0-9a-fA-F:]+) releases address ([0-9a-fA-F:]+), which is not leased to it.$/) {
if ($Detail >= 5) {
$data{'Warnings'}{$line}++;
}
} elsif ($line =~ s/^Client ([0-9a-fA-F:]+) releases address ([0-9a-fA-F:]+)$/$1\n -> $2 (IPv6)/) {
if ($Detail >= 5) {
$data{'Addresses Released'}{$line}++;
}
} elsif ($line =~ s/^[Aa]dded reverse map from ([\d]+)\.([\d]+)\.([\d]+)\.([\d]+)\.in-addr\.arpa\.? to ([a-zA-Z\d._-]+)\s*$/Add reverse $4.$3.$2.$1 -> $5/) {
if ($Detail >= 7) {
$data{'DNS Mappings'}{$line}++;
}
} elsif ($line =~ s/^[Rr]emoved reverse map on ([\d]+)\.([\d]+)\.([\d]+)\.([\d]+)\.in-addr\.arpa\.?\s*$/Remove reverse $4.$3.$2.$1/) {
if ($Detail >= 7) {
$data{'DNS Mappings'}{$line}++;
}
} elsif ($line =~ s/^Added new forward map from ([a-zA-Z\d\-_.]+) to ([\d.]+)\s*$/Add forward $1 -> $2/) {
if ($Detail >= 7) {
$data{'DNS Mappings'}{$line}++;
}
} elsif ($line =~ s/^Removed forward map from ([a-zA-Z\d\-_.]+) to ([\d.]+)\s*$/Remove forward $1 -> $2/) {
if ($Detail >= 7) {
$data{'DNS Mappings'}{$line}++;
}
} elsif ($line =~ /^No hostname for [\d.]+\s*$/) {
if ($Detail >= 7) {
$data{'Warnings'}{$line}++;
}
} elsif ($line =~ s/^if ([a-zA-Z\d\-_.]+) IN A rrset doesn't exist delete ([a-zA-Z\d\-_.]+) IN TXT "([a-f\d]+)": success.\s*$/Remove forward TXT from $1 (TXT "$3")/) {
if ($Detail >= 7) {
$data{'DNS Mappings'}{$line}++;
}
} elsif ($line =~ s/^if ([a-zA-Z\d\-_.]+) IN TXT "([a-f\d]+)" rrset exists and ([a-zA-Z\d\-_.]+) IN A ([\d.]+) rrset exists delete ([a-zA-Z\d\-_.]+) IN A ([\d.]+): success.\s*$/Remove forward $1 -> $4 (TXT "$2")/) {
if ($Detail >= 7) {
$data{'DNS Mappings'}{$line}++;
}
} elsif ($line =~ /^.* rrset .*/) {
if ($Detail >= 7) {
$data{'DNS Mappings'}{$line}++;
}
} elsif ($line =~ s/^Remove host declaration ([a-zA-Z\d.-]+) or remove ([\d.]+)\s*$/Host $2 ($1) has static and dynamic mappings, remove other/) {
if ($Detail >= 3) {
$data{'Warnings'}{$line}++;
}
} elsif ($line =~ s/^uid lease ([\da-fA-F\.:]+) for client ([^ ]*) is duplicate on ([^ ]*)/uid lease $1 for client $2 is duplicate/) {
if ($Detail >= 3) {
$data{'Duplicate lease'}{$line}++;
}
} elsif ($line =~ s/^client ([a-f0-9:]{17}) has duplicate leases on ([a-f0-9\/.:]+)$/$1 on $2/ ) {
if ($Detail >= 3) {
$data{'Duplicate lease'}{$line}++;
}
} elsif ($line =~ /^DHCPDISCOVER from .* via \S+: (.*): no free leases/) {
$data{'No Free Leases'}{$1}++;
} elsif ($line =~ /^DHCPDISCOVER from .* via (\S+): unknown network segment/) {
$data{'Unknown Network Segments'}{$1}++;
} elsif ($line =~ /^DHCPDISCOVER from .* via (\S+): load balance to peer/) {
$data{'Load balance to peer'}{$1}++
} elsif ($line =~ /^ICMP Echo Reply for ([\da-fA-F\.:]+) late or spurious/) {
$data{'Late or spurious Echo Reply for'}{$1}++;
} elsif ($line =~ /^ICMP Echo reply while lease ([\da-fA-F\.:]+) valid/) {
$data{'Echo reply while lease valid'}{$1}++;
} else {
$data{'Unknown Entries'}{$line}++;
}
}
if (keys %data) {
foreach my $type (sort keys %data) {
print "$type:\n";
foreach my $entry (sort {$a cmp $b} keys %{$data{$type}}) {
print " $entry: $data{$type}{$entry} Time(s)\n";
}
print "\n";
}
}
# vi: shiftwidth=3 tabstop=3 syntax=perl et
# Local Variables:
# mode: perl
# perl-indent-level: 3
# indent-tabs-mode: nil
# End:
|