## Name

`named.conf` — configuration file for named

## Synopsis

`named.conf`

## DESCRIPTION

`named.conf` is the configuration file for named. Statements are enclosed in braces and terminated with a semi-colon. Clauses in the statements are also semi-colon terminated. The usual comment styles are supported:

C style: /* */

C++ style: // to end of line

Unix style: # to end of line

## ACL

acl `string` { `address_match_element`; ... };

## CONTROLS

controls {
inet ( `ipv4_address` | `ipv6_address` |
* ) [ port ( `integer` | * ) ] allow
{ `address_match_element`; ... } [
keys { `string`; ... } ] [ read-only
`boolean` ];
unix `quoted_string` perm `integer`
owner `integer` group `integer` [
keys { `string`; ... } ] [ read-only
`boolean` ];
};

## DLZ

dlz `string` {
database `string`;
search `boolean`;
};

## DYNDB

dyndb `string` `quoted_string` {
`unspecified-text` };

## KEY

key `string` {
algorithm `string`;
secret `string`;
};

## LOGGING

logging {
category `string` { `string`; ... };
channel `string` {
buffered `boolean`;
file `quoted_string` [ versions ( unlimited | `integer` ) ]
[ size `size` ] [ suffix ( increment | timestamp ) ];
null;
print-category `boolean`;
print-severity `boolean`;
print-time ( iso8601 | iso8601-utc | local | `boolean` );
severity `log_severity`;
stderr;
syslog [ `syslog_facility` ];
};
};

## MANAGED-KEYS

managed-keys { `string` `string` `integer`
`integer` `integer` `quoted_string`; ... };

## MASTERS

masters `string` [ port `integer` ] [ dscp
`integer` ] { ( `masters` | `ipv4_address` [
port `integer` ] | `ipv6_address` [ port
`integer` ] ) [ key `string` ]; ... };

## OPTIONS

options {
allow-new-zones `boolean`;
allow-notify { `address_match_element`; ... };
allow-query { `address_match_element`; ... };
allow-query-cache { `address_match_element`; ... };
allow-query-cache-on { `address_match_element`; ... };
allow-query-on { `address_match_element`; ... };
allow-recursion { `address_match_element`; ... };
allow-recursion-on { `address_match_element`; ... };
allow-transfer { `address_match_element`; ... };
allow-update { `address_match_element`; ... };
allow-update-forwarding { `address_match_element`; ... };
also-notify [ port `integer` ] [ dscp `integer` ] { ( `masters` |
`ipv4_address` [ port `integer` ] | `ipv6_address` [ port
`integer` ] ) [ key `string` ]; ... };
alt-transfer-source ( `ipv4_address` | * ) [ port ( `integer` | * )
] [ dscp `integer` ];
alt-transfer-source-v6 ( `ipv6_address` | * ) [ port ( `integer` |
* ) ] [ dscp `integer` ];
answer-cookie `boolean`;
attach-cache `string`;
auth-nxdomain `boolean`; // default changed
auto-dnssec ( allow | maintain | off );
automatic-interface-scan `boolean`;
avoid-v4-udp-ports { `portrange`; ... };
avoid-v6-udp-ports { `portrange`; ... };
bindkeys-file `quoted_string`;
blackhole { `address_match_element`; ... };
cache-file `quoted_string`;
catalog-zones { zone `string` [ default-masters [ port `integer` ]
[ dscp `integer` ] { ( `masters` | `ipv4_address` [ port
`integer` ] | `ipv6_address` [ port `integer` ] ) [ key
`string` ]; ... } ] [ zone-directory `quoted_string` ] [
in-memory `boolean` ] [ min-update-interval `ttlval` ]; ... };
check-dup-records ( fail | warn | ignore );
check-integrity `boolean`;
check-mx ( fail | warn | ignore );
check-mx-cname ( fail | warn | ignore );
check-names ( primary | master |
secondary | slave | response ) (
fail | warn | ignore );
check-sibling `boolean`;
check-spf ( warn | ignore );
check-srv-cname ( fail | warn | ignore );
check-wildcard `boolean`;
cleaning-interval `integer`;
clients-per-query `integer`;
cookie-algorithm ( aes | sha1 | sha256 );
cookie-secret `string`;
coresize ( default | unlimited | `sizeval` );
datasize ( default | unlimited | `sizeval` );
deny-answer-addresses { `address_match_element`; ... } [
except-from { `string`; ... } ];
deny-answer-aliases { `string`; ... } [ except-from { `string`; ...
} ];
dialup ( notify | notify-passive | passive | refresh | `boolean` );
directory `quoted_string`;
disable-algorithms `string` { `string`;
... };
disable-ds-digests `string` { `string`;
... };
disable-empty-zone `string`;
dns64 `netprefix` {
break-dnssec `boolean`;
clients { `address_match_element`; ... };
exclude { `address_match_element`; ... };
mapped { `address_match_element`; ... };
recursive-only `boolean`;
suffix `ipv6_address`;
};
dns64-contact `string`;
dns64-server `string`;
dnskey-sig-validity `integer`;
dnsrps-enable `boolean`;
dnsrps-options { `unspecified-text` };
dnssec-accept-expired `boolean`;
dnssec-dnskey-kskonly `boolean`;
dnssec-enable `boolean`;
dnssec-loadkeys-interval `integer`;
dnssec-lookaside ( `string` trust-anchor
`string` | auto | no );
dnssec-must-be-secure `string` `boolean`;
dnssec-secure-to-insecure `boolean`;
dnssec-update-mode ( maintain | no-resign );
dnssec-validation ( yes | no | auto );
dnstap { ( all | auth | client | forwarder |
resolver | update ) [ ( query | response ) ];
... };
dnstap-identity ( `quoted_string` | none |
hostname );
dnstap-output ( file | unix ) `quoted_string` [
size ( unlimited | `size` ) ] [ versions (
unlimited | `integer` ) ] [ suffix ( increment
| timestamp ) ];
dnstap-version ( `quoted_string` | none );
dscp `integer`;
dual-stack-servers [ port `integer` ] { ( `quoted_string` [ port
`integer` ] [ dscp `integer` ] | `ipv4_address` [ port
`integer` ] [ dscp `integer` ] | `ipv6_address` [ port
`integer` ] [ dscp `integer` ] ); ... };
dump-file `quoted_string`;
edns-udp-size `integer`;
empty-contact `string`;
empty-server `string`;
empty-zones-enable `boolean`;
fetch-quota-params `integer` `fixedpoint` `fixedpoint` `fixedpoint`;
fetches-per-server `integer` [ ( drop | fail ) ];
fetches-per-zone `integer` [ ( drop | fail ) ];
files ( default | unlimited | `sizeval` );
flush-zones-on-shutdown `boolean`;
forward ( first | only );
forwarders [ port `integer` ] [ dscp `integer` ] { ( `ipv4_address`
| `ipv6_address` ) [ port `integer` ] [ dscp `integer` ]; ... };
fstrm-set-buffer-hint `integer`;
fstrm-set-flush-timeout `integer`;
fstrm-set-input-queue-size `integer`;
fstrm-set-output-notify-threshold `integer`;
fstrm-set-output-queue-model ( mpsc | spsc );
fstrm-set-output-queue-size `integer`;
fstrm-set-reopen-interval `ttlval`;
geoip-directory ( `quoted_string` | none );
glue-cache `boolean`;
heartbeat-interval `integer`;
hostname ( `quoted_string` | none );
inline-signing `boolean`;
interface-interval `ttlval`;
ixfr-from-differences ( primary | master | secondary | slave |
`boolean` );
keep-response-order { `address_match_element`; ... };
key-directory `quoted_string`;
lame-ttl `ttlval`;
listen-on [ port `integer` ] [ dscp
`integer` ] {
`address_match_element`; ... };
listen-on-v6 [ port `integer` ] [ dscp
`integer` ] {
`address_match_element`; ... };
lmdb-mapsize `sizeval`;
lock-file ( `quoted_string` | none );
managed-keys-directory `quoted_string`;
masterfile-format ( map | raw | text );
masterfile-style ( full | relative );
match-mapped-addresses `boolean`;
max-cache-size ( default | unlimited | `sizeval` | `percentage` );
max-cache-ttl `ttlval`;
max-clients-per-query `integer`;
max-journal-size ( default | unlimited | `sizeval` );
max-ncache-ttl `ttlval`;
max-records `integer`;
max-recursion-depth `integer`;
max-recursion-queries `integer`;
max-refresh-time `integer`;
max-retry-time `integer`;
max-rsa-exponent-size `integer`;
max-stale-ttl `ttlval`;
max-transfer-idle-in `integer`;
max-transfer-idle-out `integer`;
max-transfer-time-in `integer`;
max-transfer-time-out `integer`;
max-udp-size `integer`;
max-zone-ttl ( unlimited | `ttlval` );
memstatistics `boolean`;
memstatistics-file `quoted_string`;
message-compression `boolean`;
min-cache-ttl `ttlval`;
min-ncache-ttl `ttlval`;
min-refresh-time `integer`;
min-retry-time `integer`;
minimal-any `boolean`;
minimal-responses ( no-auth | no-auth-recursive | `boolean` );
multi-master `boolean`;
new-zones-directory `quoted_string`;
no-case-compress { `address_match_element`; ... };
nocookie-udp-size `integer`;
notify ( explicit | master-only | `boolean` );
notify-delay `integer`;
notify-rate `integer`;
notify-source ( `ipv4_address` | * ) [ port ( `integer` | * ) ] [
dscp `integer` ];
notify-source-v6 ( `ipv6_address` | * ) [ port ( `integer` | * ) ]
[ dscp `integer` ];
notify-to-soa `boolean`;
nta-lifetime `ttlval`;
nta-recheck `ttlval`;
nxdomain-redirect `string`;
pid-file ( `quoted_string` | none );
port `integer`;
preferred-glue `string`;
prefetch `integer` [ `integer` ];
provide-ixfr `boolean`;
qname-minimization ( strict | relaxed | disabled | off );
query-source ( ( [ address ] ( `ipv4_address` | * ) [ port (
`integer` | * ) ] ) | ( [ [ address ] ( `ipv4_address` | * ) ]
port ( `integer` | * ) ) ) [ dscp `integer` ];
query-source-v6 ( ( [ address ] ( `ipv6_address` | * ) [ port (
`integer` | * ) ] ) | ( [ [ address ] ( `ipv6_address` | * ) ]
port ( `integer` | * ) ) ) [ dscp `integer` ];
querylog `boolean`;
random-device ( `quoted_string` | none );
rate-limit {
all-per-second `integer`;
errors-per-second `integer`;
exempt-clients { `address_match_element`; ... };
ipv4-prefix-length `integer`;
ipv6-prefix-length `integer`;
log-only `boolean`;
max-table-size `integer`;
min-table-size `integer`;
nodata-per-second `integer`;
nxdomains-per-second `integer`;
qps-scale `integer`;
referrals-per-second `integer`;
responses-per-second `integer`;
slip `integer`;
window `integer`;
};
recursing-file `quoted_string`;
recursion `boolean`;
recursive-clients `integer`;
request-expire `boolean`;
request-ixfr `boolean`;
request-nsid `boolean`;
require-server-cookie `boolean`;
reserved-sockets `integer`;
resolver-nonbackoff-tries `integer`;
resolver-query-timeout `integer`;
resolver-retry-interval `integer`;
response-padding { `address_match_element`; ... } block-size
`integer`;
response-policy { zone `string` [ log `boolean` ] [ max-policy-ttl
`ttlval` ] [ min-update-interval `ttlval` ] [ policy ( cname |
disabled | drop | given | no-op | nodata | nxdomain | passthru
| tcp-only `quoted_string` ) ] [ recursive-only `boolean` ] [
nsip-enable `boolean` ] [ nsdname-enable `boolean` ]; ... } [
break-dnssec `boolean` ] [ max-policy-ttl `ttlval` ] [
min-update-interval `ttlval` ] [ min-ns-dots `integer` ] [
nsip-wait-recurse `boolean` ] [ qname-wait-recurse `boolean` ]
[ recursive-only `boolean` ] [ nsip-enable `boolean` ] [
nsdname-enable `boolean` ] [ dnsrps-enable `boolean` ] [
dnsrps-options { `unspecified-text` } ];
root-delegation-only [ exclude { `string`; ... } ];
root-key-sentinel `boolean`;
rrset-order { [ class `string` ] [ type `string` ] [ name
`quoted_string` ] `string` `string`; ... };
secroots-file `quoted_string`;
send-cookie `boolean`;
serial-query-rate `integer`;
serial-update-method ( date | increment | unixtime );
server-id ( `quoted_string` | none | hostname );
servfail-ttl `ttlval`;
session-keyalg `string`;
session-keyfile ( `quoted_string` | none );
session-keyname `string`;
sig-signing-nodes `integer`;
sig-signing-signatures `integer`;
sig-signing-type `integer`;
sig-validity-interval `integer` [ `integer` ];
sortlist { `address_match_element`; ... };
stacksize ( default | unlimited | `sizeval` );
stale-answer-enable `boolean`;
stale-answer-ttl `ttlval`;
startup-notify-rate `integer`;
statistics-file `quoted_string`;
synth-from-dnssec `boolean`;
tcp-advertised-timeout `integer`;
tcp-clients `integer`;
tcp-idle-timeout `integer`;
tcp-initial-timeout `integer`;
tcp-keepalive-timeout `integer`;
tcp-listen-queue `integer`;
tkey-dhkey `quoted_string` `integer`;
tkey-domain `quoted_string`;
tkey-gssapi-credential `quoted_string`;
tkey-gssapi-keytab `quoted_string`;
transfer-format ( many-answers | one-answer );
transfer-message-size `integer`;
transfer-source ( `ipv4_address` | * ) [ port ( `integer` | * ) ] [
dscp `integer` ];
transfer-source-v6 ( `ipv6_address` | * ) [ port ( `integer` | * )
] [ dscp `integer` ];
transfers-in `integer`;
transfers-out `integer`;
transfers-per-ns `integer`;
trust-anchor-telemetry `boolean`; // experimental
try-tcp-refresh `boolean`;
update-check-ksk `boolean`;
use-alt-transfer-source `boolean`;
use-v4-udp-ports { `portrange`; ... };
use-v6-udp-ports { `portrange`; ... };
v6-bias `integer`;
validate-except { `string`; ... };
version ( `quoted_string` | none );
zero-no-soa-ttl `boolean`;
zero-no-soa-ttl-cache `boolean`;
zone-statistics ( full | terse | none | `boolean` );
};

## PLUGIN

plugin ( query ) `string` [ { `unspecified-text`
} ];

## SERVER

server `netprefix` {
bogus `boolean`;
edns `boolean`;
edns-udp-size `integer`;
edns-version `integer`;
keys `server_key`;
max-udp-size `integer`;
notify-source ( `ipv4_address` | * ) [ port ( `integer` | * ) ] [
dscp `integer` ];
notify-source-v6 ( `ipv6_address` | * ) [ port ( `integer` | * ) ]
[ dscp `integer` ];
padding `integer`;
provide-ixfr `boolean`;
query-source ( ( [ address ] ( `ipv4_address` | * ) [ port (
`integer` | * ) ] ) | ( [ [ address ] ( `ipv4_address` | * ) ]
port ( `integer` | * ) ) ) [ dscp `integer` ];
query-source-v6 ( ( [ address ] ( `ipv6_address` | * ) [ port (
`integer` | * ) ] ) | ( [ [ address ] ( `ipv6_address` | * ) ]
port ( `integer` | * ) ) ) [ dscp `integer` ];
request-expire `boolean`;
request-ixfr `boolean`;
request-nsid `boolean`;
send-cookie `boolean`;
tcp-keepalive `boolean`;
tcp-only `boolean`;
transfer-format ( many-answers | one-answer );
transfer-source ( `ipv4_address` | * ) [ port ( `integer` | * ) ] [
dscp `integer` ];
transfer-source-v6 ( `ipv6_address` | * ) [ port ( `integer` | * )
] [ dscp `integer` ];
transfers `integer`;
};

## STATISTICS-CHANNELS

statistics-channels {
inet ( `ipv4_address` | `ipv6_address` |
* ) [ port ( `integer` | * ) ] [
allow { `address_match_element`; ...
} ];
};

## TRUSTED-KEYS

trusted-keys { `string` `integer` `integer`
`integer` `quoted_string`; ... };

## VIEW

view `string` [ `class` ] {
allow-new-zones `boolean`;
allow-notify { `address_match_element`; ... };
allow-query { `address_match_element`; ... };
allow-query-cache { `address_match_element`; ... };
allow-query-cache-on { `address_match_element`; ... };
allow-query-on { `address_match_element`; ... };
allow-recursion { `address_match_element`; ... };
allow-recursion-on { `address_match_element`; ... };
allow-transfer { `address_match_element`; ... };
allow-update { `address_match_element`; ... };
allow-update-forwarding { `address_match_element`; ... };
also-notify [ port `integer` ] [ dscp `integer` ] { ( `masters` |
`ipv4_address` [ port `integer` ] | `ipv6_address` [ port
`integer` ] ) [ key `string` ]; ... };
alt-transfer-source ( `ipv4_address` | * ) [ port ( `integer` | * )
] [ dscp `integer` ];
alt-transfer-source-v6 ( `ipv6_address` | * ) [ port ( `integer` |
* ) ] [ dscp `integer` ];
attach-cache `string`;
auth-nxdomain `boolean`; // default changed
auto-dnssec ( allow | maintain | off );
cache-file `quoted_string`;
catalog-zones { zone `string` [ default-masters [ port `integer` ]
[ dscp `integer` ] { ( `masters` | `ipv4_address` [ port
`integer` ] | `ipv6_address` [ port `integer` ] ) [ key
`string` ]; ... } ] [ zone-directory `quoted_string` ] [
in-memory `boolean` ] [ min-update-interval `ttlval` ]; ... };
check-dup-records ( fail | warn | ignore );
check-integrity `boolean`;
check-mx ( fail | warn | ignore );
check-mx-cname ( fail | warn | ignore );
check-names ( primary | master |
secondary | slave | response ) (
fail | warn | ignore );
check-sibling `boolean`;
check-spf ( warn | ignore );
check-srv-cname ( fail | warn | ignore );
check-wildcard `boolean`;
cleaning-interval `integer`;
clients-per-query `integer`;
deny-answer-addresses { `address_match_element`; ... } [
except-from { `string`; ... } ];
deny-answer-aliases { `string`; ... } [ except-from { `string`; ...
} ];
dialup ( notify | notify-passive | passive | refresh | `boolean` );
disable-algorithms `string` { `string`;
... };
disable-ds-digests `string` { `string`;
... };
disable-empty-zone `string`;
dlz `string` {
database `string`;
search `boolean`;
};
dns64 `netprefix` {
break-dnssec `boolean`;
clients { `address_match_element`; ... };
exclude { `address_match_element`; ... };
mapped { `address_match_element`; ... };
recursive-only `boolean`;
suffix `ipv6_address`;
};
dns64-contact `string`;
dns64-server `string`;
dnskey-sig-validity `integer`;
dnsrps-enable `boolean`;
dnsrps-options { `unspecified-text` };
dnssec-accept-expired `boolean`;
dnssec-dnskey-kskonly `boolean`;
dnssec-enable `boolean`;
dnssec-loadkeys-interval `integer`;
dnssec-lookaside ( `string` trust-anchor
`string` | auto | no );
dnssec-must-be-secure `string` `boolean`;
dnssec-secure-to-insecure `boolean`;
dnssec-update-mode ( maintain | no-resign );
dnssec-validation ( yes | no | auto );
dnstap { ( all | auth | client | forwarder |
resolver | update ) [ ( query | response ) ];
... };
dual-stack-servers [ port `integer` ] { ( `quoted_string` [ port
`integer` ] [ dscp `integer` ] | `ipv4_address` [ port
`integer` ] [ dscp `integer` ] | `ipv6_address` [ port
`integer` ] [ dscp `integer` ] ); ... };
dyndb `string` `quoted_string` {
`unspecified-text` };
edns-udp-size `integer`;
empty-contact `string`;
empty-server `string`;
empty-zones-enable `boolean`;
fetch-quota-params `integer` `fixedpoint` `fixedpoint` `fixedpoint`;
fetches-per-server `integer` [ ( drop | fail ) ];
fetches-per-zone `integer` [ ( drop | fail ) ];
forward ( first | only );
forwarders [ port `integer` ] [ dscp `integer` ] { ( `ipv4_address`
| `ipv6_address` ) [ port `integer` ] [ dscp `integer` ]; ... };
glue-cache `boolean`;
inline-signing `boolean`;
ixfr-from-differences ( primary | master | secondary | slave |
`boolean` );
key `string` {
algorithm `string`;
secret `string`;
};
key-directory `quoted_string`;
lame-ttl `ttlval`;
lmdb-mapsize `sizeval`;
managed-keys { `string` `string`
`integer` `integer` `integer`
`quoted_string`; ... };
masterfile-format ( map | raw | text );
masterfile-style ( full | relative );
match-clients { `address_match_element`; ... };
match-destinations { `address_match_element`; ... };
match-recursive-only `boolean`;
max-cache-size ( default | unlimited | `sizeval` | `percentage` );
max-cache-ttl `ttlval`;
max-clients-per-query `integer`;
max-journal-size ( default | unlimited | `sizeval` );
max-ncache-ttl `ttlval`;
max-records `integer`;
max-recursion-depth `integer`;
max-recursion-queries `integer`;
max-refresh-time `integer`;
max-retry-time `integer`;
max-stale-ttl `ttlval`;
max-transfer-idle-in `integer`;
max-transfer-idle-out `integer`;
max-transfer-time-in `integer`;
max-transfer-time-out `integer`;
max-udp-size `integer`;
max-zone-ttl ( unlimited | `ttlval` );
message-compression `boolean`;
min-cache-ttl `ttlval`;
min-ncache-ttl `ttlval`;
min-refresh-time `integer`;
min-retry-time `integer`;
minimal-any `boolean`;
minimal-responses ( no-auth | no-auth-recursive | `boolean` );
multi-master `boolean`;
new-zones-directory `quoted_string`;
no-case-compress { `address_match_element`; ... };
nocookie-udp-size `integer`;
notify ( explicit | master-only | `boolean` );
notify-delay `integer`;
notify-source ( `ipv4_address` | * ) [ port ( `integer` | * ) ] [
dscp `integer` ];
notify-source-v6 ( `ipv6_address` | * ) [ port ( `integer` | * ) ]
[ dscp `integer` ];
notify-to-soa `boolean`;
nta-lifetime `ttlval`;
nta-recheck `ttlval`;
nxdomain-redirect `string`;
plugin ( query ) `string` [ {
`unspecified-text` } ];
preferred-glue `string`;
prefetch `integer` [ `integer` ];
provide-ixfr `boolean`;
qname-minimization ( strict | relaxed | disabled | off );
query-source ( ( [ address ] ( `ipv4_address` | * ) [ port (
`integer` | * ) ] ) | ( [ [ address ] ( `ipv4_address` | * ) ]
port ( `integer` | * ) ) ) [ dscp `integer` ];
query-source-v6 ( ( [ address ] ( `ipv6_address` | * ) [ port (
`integer` | * ) ] ) | ( [ [ address ] ( `ipv6_address` | * ) ]
port ( `integer` | * ) ) ) [ dscp `integer` ];
rate-limit {
all-per-second `integer`;
errors-per-second `integer`;
exempt-clients { `address_match_element`; ... };
ipv4-prefix-length `integer`;
ipv6-prefix-length `integer`;
log-only `boolean`;
max-table-size `integer`;
min-table-size `integer`;
nodata-per-second `integer`;
nxdomains-per-second `integer`;
qps-scale `integer`;
referrals-per-second `integer`;
responses-per-second `integer`;
slip `integer`;
window `integer`;
};
recursion `boolean`;
request-expire `boolean`;
request-ixfr `boolean`;
request-nsid `boolean`;
require-server-cookie `boolean`;
resolver-nonbackoff-tries `integer`;
resolver-query-timeout `integer`;
resolver-retry-interval `integer`;
response-padding { `address_match_element`; ... } block-size
`integer`;
response-policy { zone `string` [ log `boolean` ] [ max-policy-ttl
`ttlval` ] [ min-update-interval `ttlval` ] [ policy ( cname |
disabled | drop | given | no-op | nodata | nxdomain | passthru
| tcp-only `quoted_string` ) ] [ recursive-only `boolean` ] [
nsip-enable `boolean` ] [ nsdname-enable `boolean` ]; ... } [
break-dnssec `boolean` ] [ max-policy-ttl `ttlval` ] [
min-update-interval `ttlval` ] [ min-ns-dots `integer` ] [
nsip-wait-recurse `boolean` ] [ qname-wait-recurse `boolean` ]
[ recursive-only `boolean` ] [ nsip-enable `boolean` ] [
nsdname-enable `boolean` ] [ dnsrps-enable `boolean` ] [
dnsrps-options { `unspecified-text` } ];
root-delegation-only [ exclude { `string`; ... } ];
root-key-sentinel `boolean`;
rrset-order { [ class `string` ] [ type `string` ] [ name
`quoted_string` ] `string` `string`; ... };
send-cookie `boolean`;
serial-update-method ( date | increment | unixtime );
server `netprefix` {
bogus `boolean`;
edns `boolean`;
edns-udp-size `integer`;
edns-version `integer`;
keys `server_key`;
max-udp-size `integer`;
notify-source ( `ipv4_address` | * ) [ port ( `integer` | *
) ] [ dscp `integer` ];
notify-source-v6 ( `ipv6_address` | * ) [ port ( `integer`
| * ) ] [ dscp `integer` ];
padding `integer`;
provide-ixfr `boolean`;
query-source ( ( [ address ] ( `ipv4_address` | * ) [ port
( `integer` | * ) ] ) | ( [ [ address ] (
`ipv4_address` | * ) ] port ( `integer` | * ) ) ) [
dscp `integer` ];
query-source-v6 ( ( [ address ] ( `ipv6_address` | * ) [
port ( `integer` | * ) ] ) | ( [ [ address ] (
`ipv6_address` | * ) ] port ( `integer` | * ) ) ) [
dscp `integer` ];
request-expire `boolean`;
request-ixfr `boolean`;
request-nsid `boolean`;
send-cookie `boolean`;
tcp-keepalive `boolean`;
tcp-only `boolean`;
transfer-format ( many-answers | one-answer );
transfer-source ( `ipv4_address` | * ) [ port ( `integer` |
* ) ] [ dscp `integer` ];
transfer-source-v6 ( `ipv6_address` | * ) [ port (
`integer` | * ) ] [ dscp `integer` ];
transfers `integer`;
};
servfail-ttl `ttlval`;
sig-signing-nodes `integer`;
sig-signing-signatures `integer`;
sig-signing-type `integer`;
sig-validity-interval `integer` [ `integer` ];
sortlist { `address_match_element`; ... };
stale-answer-enable `boolean`;
stale-answer-ttl `ttlval`;
synth-from-dnssec `boolean`;
transfer-format ( many-answers | one-answer );
transfer-source ( `ipv4_address` | * ) [ port ( `integer` | * ) ] [
dscp `integer` ];
transfer-source-v6 ( `ipv6_address` | * ) [ port ( `integer` | * )
] [ dscp `integer` ];
trust-anchor-telemetry `boolean`; // experimental
trusted-keys { `string` `integer`
`integer` `integer` `quoted_string`;
... };
try-tcp-refresh `boolean`;
update-check-ksk `boolean`;
use-alt-transfer-source `boolean`;
v6-bias `integer`;
validate-except { `string`; ... };
zero-no-soa-ttl `boolean`;
zero-no-soa-ttl-cache `boolean`;
zone `string` [ `class` ] {
allow-notify { `address_match_element`; ... };
allow-query { `address_match_element`; ... };
allow-query-on { `address_match_element`; ... };
allow-transfer { `address_match_element`; ... };
allow-update { `address_match_element`; ... };
allow-update-forwarding { `address_match_element`; ... };
also-notify [ port `integer` ] [ dscp `integer` ] { (
`masters` | `ipv4_address` [ port `integer` ] |
`ipv6_address` [ port `integer` ] ) [ key `string` ];
... };
alt-transfer-source ( `ipv4_address` | * ) [ port (
`integer` | * ) ] [ dscp `integer` ];
alt-transfer-source-v6 ( `ipv6_address` | * ) [ port (
`integer` | * ) ] [ dscp `integer` ];
auto-dnssec ( allow | maintain | off );
check-dup-records ( fail | warn | ignore );
check-integrity `boolean`;
check-mx ( fail | warn | ignore );
check-mx-cname ( fail | warn | ignore );
check-names ( fail | warn | ignore );
check-sibling `boolean`;
check-spf ( warn | ignore );
check-srv-cname ( fail | warn | ignore );
check-wildcard `boolean`;
database `string`;
delegation-only `boolean`;
dialup ( notify | notify-passive | passive | refresh |
`boolean` );
dlz `string`;
dnskey-sig-validity `integer`;
dnssec-dnskey-kskonly `boolean`;
dnssec-loadkeys-interval `integer`;
dnssec-secure-to-insecure `boolean`;
dnssec-update-mode ( maintain | no-resign );
file `quoted_string`;
forward ( first | only );
forwarders [ port `integer` ] [ dscp `integer` ] { (
`ipv4_address` | `ipv6_address` ) [ port `integer` ] [
dscp `integer` ]; ... };
in-view `string`;
inline-signing `boolean`;
ixfr-from-differences `boolean`;
journal `quoted_string`;
key-directory `quoted_string`;
masterfile-format ( map | raw | text );
masterfile-style ( full | relative );
masters [ port `integer` ] [ dscp `integer` ] { ( `masters`
| `ipv4_address` [ port `integer` ] | `ipv6_address` [
port `integer` ] ) [ key `string` ]; ... };
max-ixfr-log-size ( default | unlimited |
max-journal-size ( default | unlimited | `sizeval` );
max-records `integer`;
max-refresh-time `integer`;
max-retry-time `integer`;
max-transfer-idle-in `integer`;
max-transfer-idle-out `integer`;
max-transfer-time-in `integer`;
max-transfer-time-out `integer`;
max-zone-ttl ( unlimited | `ttlval` );
min-refresh-time `integer`;
min-retry-time `integer`;
multi-master `boolean`;
notify ( explicit | master-only | `boolean` );
notify-delay `integer`;
notify-source ( `ipv4_address` | * ) [ port ( `integer` | *
) ] [ dscp `integer` ];
notify-source-v6 ( `ipv6_address` | * ) [ port ( `integer`
| * ) ] [ dscp `integer` ];
notify-to-soa `boolean`;
pubkey `integer` `integer` `integer`
request-expire `boolean`;
request-ixfr `boolean`;
serial-update-method ( date | increment | unixtime );
server-addresses { ( `ipv4_address` | `ipv6_address` ); ... };
server-names { `string`; ... };
sig-signing-nodes `integer`;
sig-signing-signatures `integer`;
sig-signing-type `integer`;
sig-validity-interval `integer` [ `integer` ];
transfer-source ( `ipv4_address` | * ) [ port ( `integer` |
* ) ] [ dscp `integer` ];
transfer-source-v6 ( `ipv6_address` | * ) [ port (
`integer` | * ) ] [ dscp `integer` ];
try-tcp-refresh `boolean`;
type ( primary | master | secondary | slave | mirror |
delegation-only | forward | hint | redirect |
static-stub | stub );
update-check-ksk `boolean`;
update-policy ( local | { ( deny | grant ) `string` (
6to4-self | external | krb5-self | krb5-selfsub |
krb5-subdomain | ms-self | ms-selfsub | ms-subdomain |
name | self | selfsub | selfwild | subdomain | tcp-self
| wildcard | zonesub ) [ `string` ] `rrtypelist`; ... };
use-alt-transfer-source `boolean`;
zero-no-soa-ttl `boolean`;
zone-statistics ( full | terse | none | `boolean` );
};
zone-statistics ( full | terse | none | `boolean` );
};

## ZONE

zone `string` [ `class` ] {
allow-notify { `address_match_element`; ... };
allow-query { `address_match_element`; ... };
allow-query-on { `address_match_element`; ... };
allow-transfer { `address_match_element`; ... };
allow-update { `address_match_element`; ... };
allow-update-forwarding { `address_match_element`; ... };
also-notify [ port `integer` ] [ dscp `integer` ] { ( `masters` |
`ipv4_address` [ port `integer` ] | `ipv6_address` [ port
`integer` ] ) [ key `string` ]; ... };
alt-transfer-source ( `ipv4_address` | * ) [ port ( `integer` | * )
] [ dscp `integer` ];
alt-transfer-source-v6 ( `ipv6_address` | * ) [ port ( `integer` |
* ) ] [ dscp `integer` ];
auto-dnssec ( allow | maintain | off );
check-dup-records ( fail | warn | ignore );
check-integrity `boolean`;
check-mx ( fail | warn | ignore );
check-mx-cname ( fail | warn | ignore );
check-names ( fail | warn | ignore );
check-sibling `boolean`;
check-spf ( warn | ignore );
check-srv-cname ( fail | warn | ignore );
check-wildcard `boolean`;
database `string`;
delegation-only `boolean`;
dialup ( notify | notify-passive | passive | refresh | `boolean` );
dlz `string`;
dnskey-sig-validity `integer`;
dnssec-dnskey-kskonly `boolean`;
dnssec-loadkeys-interval `integer`;
dnssec-secure-to-insecure `boolean`;
dnssec-update-mode ( maintain | no-resign );
file `quoted_string`;
forward ( first | only );
forwarders [ port `integer` ] [ dscp `integer` ] { ( `ipv4_address`
| `ipv6_address` ) [ port `integer` ] [ dscp `integer` ]; ... };
in-view `string`;
inline-signing `boolean`;
ixfr-from-differences `boolean`;
journal `quoted_string`;
key-directory `quoted_string`;
masterfile-format ( map | raw | text );
masterfile-style ( full | relative );
masters [ port `integer` ] [ dscp `integer` ] { ( `masters` |
`ipv4_address` [ port `integer` ] | `ipv6_address` [ port
`integer` ] ) [ key `string` ]; ... };
max-journal-size ( default | unlimited | `sizeval` );
max-records `integer`;
max-refresh-time `integer`;
max-retry-time `integer`;
max-transfer-idle-in `integer`;
max-transfer-idle-out `integer`;
max-transfer-time-in `integer`;
max-transfer-time-out `integer`;
max-zone-ttl ( unlimited | `ttlval` );
min-refresh-time `integer`;
min-retry-time `integer`;
multi-master `boolean`;
notify ( explicit | master-only | `boolean` );
notify-delay `integer`;
notify-source ( `ipv4_address` | * ) [ port ( `integer` | * ) ] [
dscp `integer` ];
notify-source-v6 ( `ipv6_address` | * ) [ port ( `integer` | * ) ]
[ dscp `integer` ];
notify-to-soa `boolean`;
request-expire `boolean`;
request-ixfr `boolean`;
serial-update-method ( date | increment | unixtime );
server-addresses { ( `ipv4_address` | `ipv6_address` ); ... };
server-names { `string`; ... };
sig-signing-nodes `integer`;
sig-signing-signatures `integer`;
sig-signing-type `integer`;
sig-validity-interval `integer` [ `integer` ];
transfer-source ( `ipv4_address` | * ) [ port ( `integer` | * ) ] [
dscp `integer` ];
transfer-source-v6 ( `ipv6_address` | * ) [ port ( `integer` | * )
] [ dscp `integer` ];
try-tcp-refresh `boolean`;
type ( primary | master | secondary | slave | mirror |
delegation-only | forward | hint | redirect | static-stub |
stub );
update-check-ksk `boolean`;
update-policy ( local | { ( deny | grant ) `string` ( 6to4-self |
external | krb5-self | krb5-selfsub | krb5-subdomain | ms-self
| ms-selfsub | ms-subdomain | name | self | selfsub | selfwild
| subdomain | tcp-self | wildcard | zonesub ) [ `string` ]
`rrtypelist`; ... };
use-alt-transfer-source `boolean`;
zero-no-soa-ttl `boolean`;
zone-statistics ( full | terse | none | `boolean` );
};

## FILES

`/etc/named.conf`

## SEE ALSO

ddns-confgen(8) , named(8) , named-checkconf(8) , rndc(8) , rndc-confgen(8) , BIND 9 Administrator Reference Manual.