Good afternoon.
The DHCP server cannot update the zone file.
Zone log files do not appear in / var / lib / bind.
Please tell me what I'm doing wrong.
Ubuntu server 20.04
IP server dns and dhcp: 172.26.15.17
Gateway: 172.26.15.1
Hostname server: ddns
Purpose: to configure a dynamically updated DNS server for the local network.
Log dhcp:
Nov 15 17:30:54 ddns dhcpd[683]: Sending on Socket/fallback/fallback-net
Nov 15 17:30:54 ddns dhcpd[683]: Can't create PID file /run/dhcp-server/dhcpd.pid: No such file or directory.
Nov 15 17:30:54 ddns dhcpd[683]: Server starting service.
Nov 15 17:57:01 ddns dhcpd[683]: DHCPREQUEST for 172.26.15.24 from 08:00:27:cb:1e:43 via enp0s3: unknown lease 172.26.15.24.
Nov 15 18:00:24 ddns dhcpd[683]: DHCPREQUEST for 172.26.15.24 from 08:00:27:cb:1e:43 via enp0s3: unknown lease 172.26.15.24.
Nov 15 18:00:26 ddns dhcpd[683]: DHCPDISCOVER from 08:00:27:cb:1e:43 via enp0s3
Nov 15 18:00:27 ddns dhcpd[683]: DHCPOFFER on 172.26.15.103 to 08:00:27:cb:1e:43 (test01) via enp0s3
Nov 15 18:00:27 ddns dhcpd[683]: DHCPREQUEST for 172.26.15.103 (172.26.15.17) from 08:00:27:cb:1e:43 (test01) via enp0s3
Nov 15 18:00:27 ddns dhcpd[683]: DHCPACK on 172.26.15.103 to 08:00:27:cb:1e:43 (test01) via enp0s3
Nov 15 18:00:27 ddns dhcpd[683]: Unable to add forward map from test01.LAB.LOCAL to 172.26.15.103: REFUSED
Log bind:
Nov 15 17:30:56 ddns named[687]: zone 15.26.172.in-addr.arpa/IN: loaded serial 2
Nov 15 17:30:56 ddns named[687]: zone localhost/IN: loaded serial 2
Nov 15 17:30:56 ddns named[687]: zone 127.in-addr.arpa/IN: loaded serial 1
Nov 15 17:30:56 ddns named[687]: zone LAB.LOCAL/IN: loaded serial 2
Nov 15 17:30:56 ddns named[687]: zone 255.in-addr.arpa/IN: loaded serial 1
Nov 15 17:30:56 ddns named[687]: all zones loaded
Nov 15 17:30:56 ddns named[687]: running
Nov 15 17:30:56 ddns named[687]: managed-keys-zone: Key 20326 for zone . is now trusted (acceptance timer complete)
Nov 15 17:30:57 ddns named[687]: resolver priming query complete
Nov 15 18:00:27 ddns named[687]: client @0x7fd4180228b0 172.26.15.17#40487/key dhcp_updater: update 'LAB.LOCAL/IN' denied
Configure isc-dhcp-server
/etc/dhcp/dhcpd.conf
Code:
default-lease-time 600;
max-lease-time 7200;
ddns-updates on;
ddns-update-style interim;
update-static-leases on;
authoritative;
key DHCP_UPDATER {
algorithm HMAC-MD5;
secret "zeR6EAytjI4bhleeKj9Xbg==";
}
zone LAB.LOCAL {
primary 172.26.15.17;
key DHCP_UPDATER;
}
zone 15.26.172.in-addr.arpa. {
primary 172.26.15.17;
key DHCP_UPDATER;
}
subnet 172.26.15.0 netmask 255.255.255.0 {
interface enp0s3;
range 172.26.15.100 172.26.15.120;
option domain-name "LAB.LOCAL";
option domain-name-servers 172.26.15.17;
option routers 172.26.15.1;
option broadcast-address 172.26.15.255;
}
log-facility local7;
/etc/default/isc-dhcp-server
Code:
INTERFACESv4="enp0s3"
INTERFACESv6=""
/etc/resolv.conf
Code:
nameserver 172.26.15.17
search LAB.LOCAL
Configure Bind9
/etc/bind/named.conf.options
Code:
options {
directory "/var/cache/bind";
forwarders {
8.8.8.8;
8.8.4.4;
};
listen-on {
127.0.0.1;
172.26.15.17;
};
dnssec-validation auto;
};
Live view area
/var/lib/bind/forward.bind
Code:
$TTL 604800
@ IN SOA ddns.LAB.LOCAL. root.ddns.LAB.LOCAL. (
2 ; Serial
604800 ; Refresh
86400 ; Retry
2419200 ; Expire
604800 ) ; Negative Cache TTL
;
@ IN NS ddns.LAB.LOCAL.
@ IN A 172.26.15.17
ddns IN A 172.26.15.17
test IN A 172.26.15.20
Reverse lookup zone
/var/lib/bind/reverse.bind
Code:
$TTL 604800
@ IN SOA ddns.LAB.LOCAL. root.ddns.LAB.LOCAL. (
2 ; Serial
604800 ; Refresh
86400 ; Retry
2419200 ; Expire
604800 ) ; Negative Cache TTL
;
@ IN NS ddns.LAB.LOCAL.
17 IN PTR ddns.LAB.LOCAL.
20 IN PTR test.LAB.LOCAL.
/etc/bind/named.conf.local
Code:
key DHCP_UPDATER {
algorithm HMAC-MD5.SIG-ALG.REG.INT;
secret "zeR6EAytjI4bhleeKj9Xbg==";
};
zone "LAB.LOCAL" {
type master;
file "/var/lib/bind/forward.bind";
};
zone "15.26.172.in-addr.arpa" {
type master;
file "/var/lib/bind/reverse.bind";
};
