unfortunately NSD 4.1.26 still does not work on Debian 10 Buster due to permission errors.
I have tested it on two fresh Debian 10 Buster installations and I still get this error messages:
> error: Cannot open /var/log/nsd.log for appending (Read-only file system), logging to stderr
> warning: failed to unlink pidfile /run/nsd/nsd.pid: Permission denied
> error: could not open zone list /var/lib/nsd/zone.list: Permission denied
> error: could not read zonelist file /var/lib/nsd/zone.list
Please find attached the configuration file I use (in this case for the master, slave is almost the same).
Kind Regards,
Kaulkwappe
---
#
# 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: 45.***.***.***
ip-address: 2a03:***:***:***::***
# Allow binding to non local addresses. Default no.
# ip-transparent: no
# Allow binding to addresses that are down. Default no.
# ip-freebind: 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
# listen on IPv6 connections
do-ip6: yes
# port to answer queries on. default is 53.
port: 53
# Verbosity level.
# verbosity: 0
# After binding socket, drop user privileges.
# can be a username, id or id.gid.
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: "/etc/nsd"
# The directory for zonefile: files. The daemon chdirs here.
zonesdir: "/etc/nsd/zones"
# the list of dynamically added zones.
zonelistfile: "/var/lib/nsd/zone.list"
# the database to use
# if set to "" then no disk-database is used, less memory usage.
#database: "/var/lib/nsd/nsd.db"
database: ""
# 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"
# File to store pid for nsd in.
pidfile: "/run/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/lib/nsd/xfrd.state"
# The directory where zone transfers are stored, in a subdir of it.
# xfrdir: "/tmp"
# don't answer VERSION.BIND and VERSION.SERVER CHAOS class queries
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
# Maximum number of queries served on a single TCP connection.
# By default 0, which means no maximum.
# tcp-query-count: 0
# Override the default (120 seconds) TCP timeout.
# tcp-timeout: 120
# Maximum segment size (MSS) of TCP socket on which the server
# responds to queries. Default is 0, system default MSS.
# tcp-mss: 0
# Maximum segment size (MSS) of TCP socket for outgoing AXFR request.
# Default is 0, system default MSS.
# outgoing-tcp-mss: 0
# Preferred EDNS buffer size for IPv4.
# ipv4-edns-size: 4096
# Preferred EDNS buffer size for IPv6.
# ipv6-edns-size: 4096
# statistics are produced every number of seconds. Prints to log.
# Default is 0, meaning no statistics are produced.
#statistics: 3600
# 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
# write changed zonefiles to disk, every N seconds.
# default is 0(disabled) or 3600(if database is "").
zonefiles-write: 1800
# RRLconfig
# Response Rate Limiting, size of the hashtable. Default 1000000.
# rrl-size: 1000000
# Response Rate Limiting, maximum QPS allowed (from one query source).
# If set to 0, ratelimiting is disabled. Also set
# rrl-whitelist-ratelimit to 0 to disable ratelimit processing.
# Default is on.
# rrl-ratelimit: 200
# Response Rate Limiting, number of packets to discard before
# sending a SLIP response (a truncated one, allowing an honest
# resolver to retry with TCP). Default is 2 (one half of the
# queries will receive a SLIP response, 0 disables SLIP (all
# packets are discarded), 1 means every request will get a
# SLIP response. When the ratelimit is hit the traffic is
# divided by the rrl-slip value.
# rrl-slip: 2
# Response Rate Limiting, IPv4 prefix length. Addresses are
# grouped by netblock.
# rrl-ipv4-prefix-length: 24
# Response Rate Limiting, IPv6 prefix length. Addresses are
# grouped by netblock.
# rrl-ipv6-prefix-length: 64
# Response Rate Limiting, maximum QPS allowed (from one query source)
# for whitelisted types. Default is on.
# rrl-whitelist-ratelimit: 2000
# RRLend
# 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: yes
# what interfaces are listened to for control, default is on localhost.
control-interface: 127.0.0.1
#control-interface: ::1
# port number for remote control operations (uses TLS over TCP).
control-port: 8952
# nsd server key file for remote control.
server-key-file: "/etc/nsd/nsd_server.key"
# nsd server certificate file for remote control.
server-cert-file: "/etc/nsd/nsd_server.pem"
# nsd-control key file.
control-key-file: "/etc/nsd/nsd_control.key"
# nsd-control certificate file.
control-cert-file: "/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: "masterkey"
# algorithm hmac-md5, or sha1, sha256, sha224, sha384, sha512
algorithm: sha384
# 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: "***"
# Patterns have zone configuration and they are shared by one or more zones.
#
pattern:
# name by which the pattern is referred to
name: "nsd-api"
# 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: 95.***.***.*** masterkey
# 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: 95.***.***.*** masterkey
# 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
# limit the refresh and retry interval in seconds.
#max-refresh-time: 2419200
#min-refresh-time: 0
#max-retry-time: 1209600
#min-retry-time: 0
# Slave server tries zone transfer to all masters and picks highest
# zone version available, for when masters have different versions.
#multi-master-check: no
# limit the zone transfer size (in bytes), stops very large transfers
# 0 is no limits enforced.
# size-limit-xfr: 0
# 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
# RRLconfig
# Response Rate Limiting, whitelist types
# rrl-whitelist: nxdomain
# rrl-whitelist: error
# rrl-whitelist: referral
# rrl-whitelist: any
# rrl-whitelist: rrsig
# rrl-whitelist: wildcard
# rrl-whitelist: nodata
# rrl-whitelist: dnskey
# rrl-whitelist: positive
# rrl-whitelist: all
# RRLend
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