Authoritative name serverをNSDをマスターにしてknot DNSをスレイブで構成する

Authoritative name serverをマスターもスレイブもNSDで構成していたのだが、同じ実装で揃えるのはいけないと思い直して、 スレイブをknot DNSに変更していた。 後ほど参照する必要がありそうなことを書いておく。 NSDとknot DNSのいずれもpkgsrcからインストールしている。

#
# nsd.conf -- the NSD(8) configuration file, nsd.conf(5).
#
# Copyright (c) 2001-2011, NLnet Labs. All rights reserved.
#
# See LICENSE for the license.
#

# This is a comment.
# Sample configuration file
# include: "file" # include that file's text over here.  Globbed, "*.conf"

# options for the nsd server
server:
 # Number of NSD servers to fork.  Put the number of CPUs to use here.
 server-count: 1

 # uncomment to specify specific interfaces to bind (default are the
 # wildcard interfaces 0.0.0.0 and ::0).
 # For servers with multiple IP addresses, list them one by one,
 # or the source address of replies could be wrong.
 # Use ip-transparent to be able to list addresses that turn on later.
 # ip-address: 1.2.3.4
 # ip-address: 1.2.3.4@5678
 # ip-address: 12fe::8ef0
 ip-address: xxx.xxx.xxx.xxx
 ip-address: xxxx::xxxx

 # Allow binding to non local addresses. Default no.
 # ip-transparent: no

 # use the reuseport socket option for performance. Default no.
 # reuseport: no

 # enable debug mode, does not fork daemon process into the background.
 # debug-mode: no

 # listen on IPv4 connections
 # do-ip4: yes
 do-ip4: yes

 # listen on IPv6 connections
 # do-ip6: yes
 do-ip6: yes

 # port to answer queries on. default is 53.
 # port: 53
 port: 53

 # Verbosity level.
 # verbosity: 0
 verbosity: 0

 # After binding socket, drop user privileges.
 # can be a username, id or id.gid.
 # username: nsd
 username: nsd

 # Run NSD in a chroot-jail.
 # make sure to have pidfile and database reachable from there.
 # by default, no chroot-jail is used.
 # chroot: "/usr/pkg/etc/nsd"
 #chroot: "/usr/pkg/etc/nsd"

 # The directory for zonefile: files.  The daemon chdirs here.
 # zonesdir: "/usr/pkg/etc/nsd"
 zonesdir: "/usr/pkg/etc/nsd"

 # the list of dynamically added zones.
 # zonelistfile: "/var/nsd/zone.list"
 zonelistfile: "/usr/pkg/etc/nsd/zone.list"

 # the database to use
 # if set to "" then no disk-database is used, less memory usage.
 # database: "/var/nsd/nsd.db"
 database: "/usr/pkg/etc/nsd/nsd.db"

 # log messages to file. Default to stderr and syslog (with
 # facility LOG_DAEMON).  stderr disappears when daemon goes to bg.
 # logfile: "/var/log/nsd.log"
 logfile: "/usr/pkg/etc/nsd/nsd.log"

 # File to store pid for nsd in.
 # pidfile: "/var/run/nsd/nsd.pid"
 pidfile: "/usr/pkg/etc/nsd/nsd.pid"

 # The file where secondary zone refresh and expire timeouts are kept.
 # If you delete this file, all secondary zones are forced to be 
 # 'refreshing' (as if nsd got a notify).  Set to "" to disable.
 # xfrdfile: "/var/nsd/nsd-xfrd.state"
 xfrdfile: "/usr/pkg/etc/nsd/nsd-xfrd.state"

 # The directory where zone transfers are stored, in a subdir of it.
 # xfrdir: "/tmp"
 xfrdir: "/usr/pkg/etc/nsd"

 # don't answer VERSION.BIND and VERSION.SERVER CHAOS class queries
 # hide-version: no
 hide-version: yes

 # version string the server responds with for chaos queries.
 # default is 'NSD x.y.z' with the server's version number.
 # version: "NSD"

 # identify the server (CH TXT ID.SERVER entry).
 # identity: "unidentified server"

 # NSID identity (hex string, or "ascii_somestring"). default disabled.
 # nsid: "aabbccdd"

 # Maximum number of concurrent TCP connections per server.
 # tcp-count: 100
 tcp-count: 100

 # Maximum number of queries served on a single TCP connection.
 # By default 0, which means no maximum.
 # tcp-query-count: 0
 tcp-query-count: 100

 # Override the default (120 seconds) TCP timeout.
 # tcp-timeout: 120
 tcp-timeout: 120

 # Preferred EDNS buffer size for IPv4.
 # ipv4-edns-size: 4096
 ipv4-edns-size: 4096

 # Preferred EDNS buffer size for IPv6.
 # ipv6-edns-size: 4096
 ipv6-edns-size: 4096

 # statistics are produced every number of seconds. Prints to log.
 # Default is 0, meaning no statistics are produced.
 # statistics: 3600
 statistics: 0

 # Number of seconds between reloads triggered by xfrd.
 # xfrd-reload-timeout: 1
 
 # log timestamp in ascii (y-m-d h:m:s.msec), yes is default.
 # log-time-ascii: yes

 # round robin rotation of records in the answer.
 # round-robin: no

 # check mtime of all zone files on start and sighup
 # zonefiles-check: yes
 zonefiles-check: yes
 
 # write changed zonefiles to disk, every N seconds.
 # default is 0(disabled) or 3600(if database is "").
 # zonefiles-write: 3600


# Remote control config section. 
remote-control:
 # Enable remote control with nsd-control(8) here.
 # set up the keys and certificates with nsd-control-setup.
 # control-enable: no
 control-enable: yes

 # what interfaces are listened to for control, default is on localhost.
 # control-interface: 127.0.0.1
 # control-interface: ::1
 control-interface: 127.0.0.1
 control-interface: ::1

 # port number for remote control operations (uses TLS over TCP).
 # control-port: 8952
 control-port: 8952

 # nsd server key file for remote control.
 # server-key-file: "/usr/pkg/etc/nsd/nsd_server.key"
 server-key-file: "/usr/pkg/etc/nsd/nsd_server.key"

 # nsd server certificate file for remote control.
 # server-cert-file: "/usr/pkg/etc/nsd/nsd_server.pem"
 server-cert-file: "/usr/pkg/etc/nsd/nsd_server.pem"

 # nsd-control key file.
 # control-key-file: "/usr/pkg/etc/nsd/nsd_control.key"
 control-key-file: "/usr/pkg/etc/nsd/nsd_control.key"

 # nsd-control certificate file.
 # control-cert-file: "/usr/pkg/etc/nsd/nsd_control.pem"
 control-cert-file: "/usr/pkg/etc/nsd/nsd_control.pem"


# Secret keys for TSIGs that secure zone transfers.
# You could include: "secret.keys" and put the 'key:' statements in there,
# and give that file special access control permissions.
#
# key:
 # The key name is sent to the other party, it must be the same
 #name: "keyname"
 # algorithm hmac-md5, or hmac-sha1, or hmac-sha256 (if compiled in)
 #algorithm: hmac-sha256
 # secret material, must be the same as the other party uses.
 # base64 encoded random number.
 # e.g. from dd if=/dev/random of=/dev/stdout count=1 bs=32 | base64
 #secret: "K2tf3TRjvQkVCmJF3/Z9vA=="
key:
 name: "key"
 algorithm: hmac-sha256
 secret: "SECRETSTRING"


# Patterns have zone configuration and they are shared by one or more zones.
# 
# pattern:
 # name by which the pattern is referred to
 #name: "myzones"
 # the zonefile for the zones that use this pattern.
 # if relative then from the zonesdir (inside the chroot).
 # the name is processed: %s - zone name (as appears in zone:name).
 # %1 - first character of zone name, %2 second, %3 third.
 # %z - topleveldomain label of zone, %y, %x next labels in name.
 # if label or character does not exist you get a dot '.'.
 # for example "%s.zone" or "zones/%1/%2/%3/%s" or "secondary/%z/%s"
 #zonefile: "%s.zone"
 
 # If no master and slave access control elements are provided,
 # this zone will not be served to/from other servers.

 # A master zone needs notify: and provide-xfr: lists.  A slave
 # may also allow zone transfer (for debug or other secondaries).
 # notify these slaves when the master zone changes, address TSIG|NOKEY
 # IP can be ipv4 and ipv6, with @port for a nondefault port number.
 #notify: 192.0.2.1 NOKEY
 # allow these IPs and TSIG to transfer zones, addr TSIG|NOKEY|BLOCKED
 # address range 192.0.2.0/24, 1.2.3.4&255.255.0.0, 3.0.2.20-3.0.2.40
 #provide-xfr: 192.0.2.0/24 my_tsig_key_name
 # set the number of retries for notify.
 #notify-retry: 5

 # uncomment to provide AXFR to all the world
 # provide-xfr: 0.0.0.0/0 NOKEY
 # provide-xfr: ::0/0 NOKEY

 # A slave zone needs allow-notify: and request-xfr: lists.
 #allow-notify: 2001:db8::0/64 my_tsig_key_name
 # By default, a slave will request a zone transfer with IXFR/TCP.
 # If you want to make use of IXFR/UDP use: UDP addr tsigkey
 # for a master that only speaks AXFR (like NSD) use AXFR addr tsigkey
 #request-xfr: 192.0.2.2 the_tsig_key_name
 # Attention: You cannot use UDP and AXFR together. AXFR is always over 
 # TCP. If you use UDP, we higly recommend you to deploy TSIG.
 # Allow AXFR fallback if the master does not support IXFR. Default
 # is yes.
 #allow-axfr-fallback: yes
 # set local interface for sending zone transfer requests.
 # default is let the OS choose.
 #outgoing-interface: 10.0.0.10

 # if compiled with --enable-zone-stats, give name of stat block for
 # this zone (or group of zones).  Output from nsd-control stats.
 # zonestats: "%s"

 # if you give another pattern name here, at this point the settings
 # from that pattern are inserted into this one (as if it were a 
 # macro).  The statement can be given in between other statements,
 # because the order of access control elements can make a difference
 # (which master to request from first, which slave to notify first).
 #include-pattern: "common-masters"


# Fixed zone entries.  Here you can config zones that cannot be deleted.
# Zones that are dynamically added and deleted are put in the zonelist file.
#
# zone:
  # name: "example.com"
  # you can give a pattern here, all the settings from that pattern
  # are then inserted at this point
  # include-pattern: "master"
  # You can also specify (additional) options directly for this zone.
  # zonefile: "example.com.zone"
  # request-xfr: 192.0.2.1 example.com.key
zone:
 name: zzz.zzz
 zonefile: onodera.net.zone
 notify: yyy.yyy.yyy.yyy key
 notify-retry: 5
 provide-xfr: yyy.yyy.yyy.yyy key
 outgoing-interface: xxx.xxx.xxx.xxx

# This is a sample of a minimal configuration file for Knot DNS.
# See knot.conf(5) or refer to the server documentation.

key:
  - id: key
    algorithm: hmac-sha256
    secret: SECRETSTRING

server:
    rundir: "/var/run/knot"
    user: root:wheel
    listen: [ 0.0.0.0@53, ::@53 ]

log:
  - target: syslog
    any: info

remote:
#  - id: slave
#    address: 192.168.1.1@53
#
  - id: master
    key: key
    address: xxx.xxx.xxx.xxx@53

acl:
#  - id: acl_slave
#    address: 192.168.1.1
#    action: transfer

  - id: acl_master
    address: xxx.xxx.xx
    key: key
    action: notify

template:
  - id: default
    storage: "/usr/pkg/etc/knot"
    file: "%s.zone"

zone:
#    # Master zone
#  - domain: example.com
#    notify: slave
#    acl: acl_slave

    # Slave zone
  - domain: zzz.zzz
    master: master
    acl: acl_master

nsd-config notifyでスレイブに反映できる。force_transferなのかと思ったが、notifyでないといけなかった。