Questions tagged [bind]

BIND is a free, open source software implementation of the Domain Name System (DNS) protocols. The name BIND stands for "Berkeley Internet Name Domain", because the software originated in the early 1980s at the University of California at Berkeley. BIND is currently maintained and developed by the Internet Systems Consortium, a non-profit public benefit corporation with a mission to support a free and open internet.

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30 views

Bind9 forward to another external IP

I have set up a DNS server using bind9 and will forward any DNS request to 1.1.1.1. It working fine with the resolving of DNS requested by users. Note that my DNS resolver is residing in a VPS and not ...
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DNS-SD for AirPlay?

Has anyone been able to get an AirPlay device to cross subnets using DNS-SD and not doing mDNS reflection (i.e. using a UDP relay or Avahi)? I have setup a few records in my BIND9 zone file, and the ...
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Is it possible to block bind to answer to queries type “any”?

I wanted to know if it was possible, like cloudflare is doing, to make bind deny any answer to queries from the type "any" like in dig google.com any
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bind 9.11 with views and also-notify with keys: slaves receive notifications with wrong keys

Example error message from a slave shows notification for view avcan received with key vpn May 21 06:37:09 dns5.iciti named[614]: client @0x7f3f0c8472b0 192.168.8.54#49401/key vpn: view avcan: ...
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1answer
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BIND9 replication puts wrong content into some slave zone files

Trying to implement primary/secondary (master/slave) replication on Bind 9.11.4, Amazon Linux 2. Also fails with Bind 9.8. Have 4 views. For zones that cross multiple views and use different zone ...
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What is the practical difference between krb5-self and krb5-subdomain in BIND9 update-policy statement?

What is the practical difference between krb5-self and krb5-subdomain policies in BIND9 on update-policy statement while dealing with dynamic DNS updates on zones? From the BIND9 documentation it ...
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How to fix “has no address records” in BIND9 [closed]

I have a problem while setting up a local DNS-Server for pen-testing. When I want to start the BIND9 Server, I get the error: zone victim.local/IN: NS 'server1.victim.local' has no address records ...
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BIND9 Sharing some domain records across views for a same domain

I have a design problem in my BIND configuration. I have 2 views with the same zone caen2018.com (splitted for 2 different LANs: CAEN & PARIS). In each zone I have DDNS record, but I want my DDNS ...
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2answers
50 views

Configure bind on VPS to use domain name as nameserver of the same domain

I'm trying to configure bind on a VPS to make ns1.example.com and ns2.example.com point to it (already done) and make it serve example.com. I used webmin previously on the same machine, and webmin ...
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Ubuntu server 18.04 dns reverse search zones not working

I want to setup reverse search zones using BIND9 but i cant get it to work because i get NXDOMAIN error Screen of named.conf.local And screen of zone configuration file
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DNS zone on CentOS 7 not working

I have server with CentOS 7, when i have DNS and domain learn-linux.eu. My domain works but only without www. my /etc/named.conf file options { listen-on port 53 { 127.0.0.1; 193.33.111.185; ...
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Using bind 9.11 with Masters Only

a little bit of background Information before asking the question: Our current setup is: 1 Master bind and 1 Slave bind in Datacenter A 2 Slave binds in Datacenter B 2 Unbounds in Datacenter A 2 ...
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DNS with BIND9 on Debian

I am trying to create my own dns using Bind9 and Debian 11 One Virtual Machine in Google Computing Engine has these configuration Server 1 Google Cloud IP 35.206.115.212 The file /etc/hosts 127.0.0....
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Client object identifier in BIND 9 query logs

The BIND 9 Administrator Reference Manual e.g. for version 9.14.11 or 9.17.1 states in 5.2. CONFIGURATION FILE GRAMMAR The category Phrase queries The query log entry first reports a client ...
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Bind9 caching DNS server works only when forwarders enabled

So i used bind9 in a small server with multiple NICs in order to setup a cache-only recursive DNS server for my home network. Unfortunately its not working, meaning DNS queries from the hosts ...
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1answer
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DNS DDOS Attack - would like to understand log

As part of a DOOS attack (largely inefectual) I am currently seeing log messages of the form: <DATE> client <EXTERNAL-IP>#3074 (<NAME>): query: <SAME-NAME> IN RRSIG + (<...
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DNS Forward Lookup is Failing in Linux

I am installing a two node RAC on my testbed (virtualbox), i have setup the DNS server, forward lookup is not working but reverse lookup is, PFB [root@dbwr1 log]# nslookup dbwr1.localdomain Server: ...
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Problems using local DNS server

I am trying to set up openbalena on a virtual machine, and it requires DNS records in order to be discoverable. I have set up bind9 like so: /etc/bind/named.conf.local // // Do any local ...
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Why can my Windows Server 2016 domain controller not register its records on an external BIND DNS server?

Background For lab only purposes, I've set up a Windows Server 2016 domain controller on my network in a new forest. My goal is to use a BIND9 DNS server for all of its DNS needs rather than using ...
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1answer
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bind forwarder not working as expected

I want to setup a local DNS Server which hosts fld.example.com with a forwarder based on a zone. Bind is running on CentOS7 with BIND 9.11.4-P2-RedHat-9.11.4-9.P2.el7 (Extended Support Versiion). When ...
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Nameservers are not resolving to IP for a domain

I am running CentOS7 with CWP on Digital Ocean droplet. The server is currently hosting two domains, and I added third domain on 26th April. I did it with normal steps, like: point domain to my ...
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dig: couldn't get address for 'ns2.bluedental.pl': not found. Linux DNS server

I have my own DNS server. Web browsers shows DNS_PROBE_FINISHED_NXDOMAIN for my sites. My external IP is 37.190.144.15 For example I have cloud.bluedental.pl domain. When I type dig cloud....
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BIND DNS works but BIND views do not work at all

Good morning, in my company we are planning to implement BIND DNS for its views. So I set up a small test environment in VMware workstation (with no dhcp network) to play with views. I have 3 CentOS8 ...
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Configure the BIND server for a domain which is not located on the server

I follow many tutorials on the internet to configure my DNS server, but none of them could help me. Let me explain the scenario, My domain (which I want to create DNS) is pointed to Cloudflare ...
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1answer
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Bind zone error - Unexpected end of input

Everyting seems OK but I get Unexpected end of input for this: $TTL 10800 @ IN SOA ns1.riddimdub.com. admin.radiohost.riddimdub.com. ( 1 ; Serial 10800 ;...
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Bind9 DNS server is getting connection timeout

I am setting a DNS server in my lab, where the DNS server (Ubuntu server) and client's(Ubuntu desktop) are in same LAN (vSwitch) and pfsense as firewall for external outgoing traffic. No block rules ...
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1answer
17 views

Generate DNS zone redirecting subdomains to IP subnet

I created DNS zone as in example below. Is there another, clean way to redirect subdomains to IP address? Maybe with bind9 $GENERATE? Can I use regex or iteration with existing DNS software? Where to ...
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8 views

DNSoverTLS for upstream recursion requests in Bind9/Stunnel

There is a lot of information out there about DNSoverTLS and different combinations of setups, and I've slowly been going through different combinations to get the right setup for us, but it's led to ...
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How to migration a Reverse lookup Zone from BindDNS(master) to existing Reverse Lookup Zone (Primary) of ADDNS

I have 2 DNS Server A (BINDDNS) & B (ADDNS) I have to migrate reverse lookup zone "10.in-addr.arpa" from A to B. The problem is the both Server A & B have configured long time ago and also ...
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36 views

BIND DNS won't resolve CNAME to external domain

I'm trying to setup my own DNS server on my server 192.168.1.70. I want to be able to resolve my own names in my LAN but I want all other zones to be resolved by my router (192.168.1.1). Here is my ...
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BIND9/DNS lookups stopped working after upgrading our Comcast modem/gateway

OK here's our setup, we're running pfSense as our firewall/router. We have a dual-WAN with a Comcast Business Gateway and another local ISP. We're running Samba as the domain controller & Bind9/...
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nginx best practie: Listen to IP wildcard or public IP only

So I was wondering on which one of these was considered to be best practice IP Wildcard server { listen 80; listen [::]:80 ipv6only=on; # I know ipv6only=on isn't needed on older ...
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1answer
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Bind recursion and delegation allow-query-on denied

For educational purposes it is asked to us and required: To sum up ... Using BIND DNS First Step: In first server using same daemon Create a TLD zone (as parent) on an specific IP address Create a ...
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1answer
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Debian & Bind - Forwarding to external DNS not working

I am a newbie in configuring DNS servers, I need your help... I have one debian 10 with webmin + bind 9.11 installed. I got a local domain which is working fine. From one host on my LAN, I can ...
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1answer
56 views

DNS, nameserver and domain on the same dedicated IP - PTR record for nameserver?

My dedicated IP: xx.xxx.xxx.59 Am I doing this correctly by having 2 PTR records (ns1 and domain) for my IP? Reverse DNS Zone file 59.xxx.xxx.xx.in-addr.arpa.db $TTL 86400 @ IN SOA ...
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1answer
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BIND9: Is possible to point another ip address for main domain?

This is my zone file: $ORIGIN . $TTL 10800 ; 3 hours example.com IN SOA ns1.example.com. email.example.com. ( 25 ; serial ...
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1answer
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BIND failing to query external DNS records

Unfortunately, I'm an amateur sys admin and can't figure out what is going on with BIND (9.8). We have two old Samba servers that we use as our active directory domain controllers and therefore they ...
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9 views

bind receiving notify from gateway for specific zones

I'm receiving on one of my nodes notifies which are coming from the gateway. like this one: 27-Mar-2020 09:36:15.644 notify: info: client @0x7fa8dc0c71e0 192.168.5.1#57829: received notify for zone '...
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1answer
133 views

Bind9: DNS resolution temporary lost

I'm here to ask informations regarding a problem I resolved, but without understanding how. Today, my home DNS server (9.10.3-P4-Raspbian) serving the different machines at home, suddenly stopped ...
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1answer
86 views

Dynamic DNS with Bind9 and BIND_DLZ cannot start?

I have a device running Samba as an Active Directory Domain Controller using BIND_DLZ as a backend. On top of that I am running a secondary device also configured as an Active Directory Domain ...
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1answer
81 views

How to migrate BIND configuration to dnssec-policy from auto-dnssec maintain without disruption?

BIND 9.16 introduced a new dnssec-policy feature as a further more automated DNSSEC key management and signing facility over the long established auto-dnssec maintain functionality. The documentation ...
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Why does BIND perform a double query before answering NXDOMAIN for a RPZ (response-policy zone)?

The goal is to have a local DNS server with the following specifics: split DNS setup that resolves a FQDN (e.g. localdomain.com) to a local IP instead of the external IP use a RPZ (response policy ...
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18 views

BIND9 works with an empty configuration

I'm running BIND 9.11 on Ubuntu 18.04, I have commented all the 'include' statements in 'named.conf' and then issue 'sudo named -g' and I found BIND9 still works unless I add 'view' statement in '...
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107 views

ACL conditional zone in Bind9

I'm trying to apply "restrictmoderate.youtube.com" only for kids and let the others access the standard "youtube.com", using Bind9. # cat named.conf include "/etc/bind/named.conf.options"; include "/...
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28 views

BIND PTR forvarding with 10/8 master record

I'm running BIND9 witch is 10.in-addr.arpa master. I trying to add 142.24.10.in-addr.arpa as forward zone, but it doesn't work. Here is a part of named.conf file: options { check-names master ...
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1answer
49 views

bind9 not working when starting bind9 service but works when explicitly starting named

I have a really odd situation I don't fully understand. I have a master and slave DNS, I've checked the configuration, and no errors are returned. if I try to start bind9 as a service, it fails to ...
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1answer
652 views

How to configure OpenVPN to update Bind9 entries for local domain?

I have found an article describing how to configure dhcp3 server to update a Bind9 zone with the hostnames and assigned ip addresses. I want to achieve the same effect, but inside a VPN subnet, where ...
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17 views

configure bind9 to return always SERVFAIL

For testing purposes, I want to configure Bind9 to return to any query SERVFAIL. Is this possible? What is the best way to achieve something like this without introducing more delay?
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2answers
336 views

What's the difference between DNS forwarding first and forwarding only?

I'm doing some research on DNS forwarding and I'm struggling with information on a few items: What's the difference between DNS forwarding first and forwarding only? Information on the internet doesn'...
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1answer
185 views

Bind9 Slave not resolving clients queries

I have two VM's running OpenSUSE 15, one master and one slave. Master is running well and transfer the zones file to the slave correctly but if I stop the bind on master server, slave should respond ...

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