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Having issues with old data, DNS/DHCP

I'm having a few issues with DNS/DHCP, I'll ask about these one at a time.

bind 9.9.7-P1, dhcpd 4.2.5-P1, Slackware 64, 14.1

First, old leases seem to hang around forever in /var/state/dhcp/dhcpd.leases, example below. Those listed are from back in March. None of the computers in the lease file are currently connected. Why are they hanging around?

Should static IPs be in there? If so, something is not working.

# The format of this file is documented in the dhcpd.leases(5) manual page.
# This lease file was written by isc-dhcp-4.2.5-P1

lease {
  starts 6 2015/03/07 11:46:52;
  ends 0 2015/03/08 11:46:52;
  tstp 0 2015/03/08 11:46:52;
  cltt 6 2015/03/07 11:46:52;
  binding state free;
  hardware ethernet 00:16:17:46:70:69;
  uid "\001\000\026\027Fpi";
lease {
  starts 2 2015/03/17 17:01:10;
  ends 3 2015/03/18 17:01:10;
  tstp 3 2015/03/18 17:01:10;
  cltt 2 2015/03/17 17:01:10;
  binding state free;
  hardware ethernet c8:9c:dc:6e:24:e8;
  uid "\001\310\234\334n$\350";

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My dhcpd.conf file:


ddns-updates on;
update-static-leases on;
allow unknown-clients;  # default, deprecated (man dhcpd.conf)
ignore client-updates;  # see, man dhcpd.conf: ignore client-updates
ddns-update-style interim;
default-lease-time 86400;

log-facility local7;

zone hprs.local. { primary; }
zone { primary; }

subnet netmask {
    option routers;
    option domain-name-servers;
    option domain-name "hprs.local";
    ddns-domainname = "hprs.local.";
    ddns-rev-domainname = "";

# Web Server (Linux)
host webserver {
    hardware ethernet 60:A4:4C:61:9C:FE;

# SQL Server Database Server (Server 2008)
host server {
#    hardware ethernet 40:E0:4C:39:7F:61;
    hardware ethernet 3C:1E:04:47:16:B0;

# Network Attached Storage (Linux)
host ohprsstorage {
    hardware ethernet F4:6D:04:60:04:38;

# COMMON workstation (WIN7)
host COMMON {
    hardware ethernet 2C:27:D7:2F:CF:7A;

host ricoh {
    hardware ethernet 00:26:73:55:63:AB;

# Postage meter
host postage {
    hardware ethernet 00:10:60:B6:72:D4;

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Avatar of Daniel McAllister
Daniel McAllister
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So ... "old" leases never get purged from that file? It just grows forever?

Dan: that script worked well.

IPs statically assigned are not in the lease file, eh? Is that correct? None of my dozen-ish static assignments show as active leases.
Yes, again it is as much a LOG file as anything.