BIND is the de facto standard DNS server

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resolve bind mounts with a shell tool/script

currently i have a setup with two hardrives, one with xfs, the other one with btrfs on it. The root fs is mounted on the xfs, and the btrfs under /data. For verious reasons, the directory /var/www on ...
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24 views

dig does not resolve unqualified domain names, but nslookup does

I have a lab set up with DNS running on a CentOS7 server (dns01.local.lab). The local.lab domain is defined in named.conf: zone "local.lab" IN { type master; file "local.lab.zone"; ...
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24 views

How to configure BIND for domain name with own nameservers?

I am using BIND 9.10.3_P2 to setup DNS records for domain speedydrive.net. The domain itself has glue records on parent servers with 2 IP addresses for NS servers. Everything looks fine except the ...
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1k views

Redhat 7 DNS Bind Failed to restart

I am getting Error while Restarting the Named.service in Red-hat 7 Here is my Lab Status and all the Command. Configure DNS in REDHAT 7 DNS Name p1.linux.com IP address 192.168.1.1/24 N/W ID ...
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3answers
2k views

Split DNS (bind9), match-clients any doesn't work?

I've been fighting with this for the last few days. A few of my entries have external and internal IP's. My internal network is 10.0.0.0/8. When I nslookup pc1.clase.net internally it responds with ...
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22 views

PowerDNS returning ServFail for all requests

I have been working to get PowerDNS running on CentOS 7 x64 that is up to date. Followed this guide for everything except Nginx because I am using Apache: ...
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2answers
481 views

How to increment serial number in bind9 dns zone

I have a dns zone, which has serial number: 2015040500 Today I am going to add some CNAME records there, so I am interested in how to increment serial number, I mean should I change it based on ...
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20 views

Please explain to me named.stats file

I don't quite understand BIND9's statistics file named.stats. Couple of things: 1.) +++ Statistics Dump +++ (1453303803) - what does it mean? Is it when the file was created? And One and half billion ...
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10 views

Bind: how to set a time for sync journal with zones?

I have set a bind server on Debian,wich is dynamically updated by dhcp. When a client send is hostname bind put in in journal zone(.jnl extension) And not immediately on zone db file. Is possible to ...
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96 views

Large zone file for bind9 : ad-blocking

I was successfully using a small (20,000 entries) zone file with bind9 server, but today my data provider sent an update which caused the zone file to become 300,000+ entries large (30Mb+). The ...
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How do I configure the SOA and A in the nsd.conf? and How do I configure the /etc/hosts and the /etc/resolv.conf for this 3 Domain names?

I use the authoritative-only Nameserver nsd for my authoritative example.com zone. My question: I have 3 domain names example-00.com example-01.com example-02.com How do I configure the SOA and A ...
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33 views

How can I programmatically modify DNS lookups in real time?

I want to use OpenDNS (parental control) and UnoTelly (geo-restriction circumvention) together. OpenDNS returns an IP to an error page if the site is blocked. So if I get that error IP, then I want ...
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23 views

Making bind to listen to localhost in netns

I have a Debian Jessie running Bind. There is an OpenVPN connection set up. And resolv.conf set up to use local Bind first: nameserver 127.0.0.1 nameserver 4.2.2.4 I want to set up system in a way ...
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166 views

server can't find xxx.xx.xxx.192.in-addr.arpa:NXDOMAIN

$ORIGIN xx.xxx.192.in-addr.arpa. $TTL 86400 @ IN SOA dns1.testserver.com. hostmaster.testserver.com. ( 2001062501 ;serial 21600 ;refresh after 6 hour 3600 ;retry after 1 hour 604800 ;expire ...
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12 views

'Named' slave the same as having forwarders?

I have a slave DNS server that dumped a bunch of... " error (unexpected RCODE REFUSED) resolving 'xxx.xxx.xxx.xxx.in-addr.arpa/PTR/IN'" messages all the sudden, and DNS lookups to the slave server ...
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49 views

Error in named.conf

Hello I am getting the following error: Starting named: Error in named configuration: zone blk1999.lab/IN: loaded serial 2001062501 zone localhost.localdomain/IN: loading from master file ...
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19 views

centmin mod setup Domain Nameserver

I install centmin mod on my VPS. (ex. IP VPS 49.49.49.49) then i select option (2) to Add Nginx vhost domain then i create 2 vhost mydomain1.com and mydomain2.com. add my domain panel, there's 3 ...
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1answer
58 views

Resolving IPv4 address from DNS using the IPv6 address of a host (bind9)

I need to make a DNS query to one of my clients using IPv6 to resolve the IPv4 address for the machine, how would I go about doing that. I know i can just use the hostname to resolve both IPv4 & ...
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46 views

Split-horizon on DNSMasq?

Is it possible to perform Split-horizon with DNSMasq? I've googled and it seems like it is only possible with Bind9, any advice would be much appericated
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1answer
16 views

Does bind depends on system DNS settings for lookup?

My understand of bind in handling non-authoritative queries is: forward mode. It just forward the client queries to an upstream DNS server, which is defined in "forwarders" directive. recursive ...
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19 views

Can AppArmor restrict access to a specific interface?

A deceptively simple question; Can Apparmor on Ubuntu (any release) restrict network access for a specific application to a specific network interface? If it can; an example/tutorial/etc link would ...
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1answer
85 views

rsyslog sending data to remote slows down when $AddUnixListenSocket is used?

I'm running a busy DNS server which logs queries to a remote server via rsyslog. Due to the amount of traffic we're processing I've had to increase the rate limits in rsyslog.conf. This server is ...
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12 views

Bind9 resolv on or off?

I'm using bind9 to run my own public DNS for my website. I've been getting a lot of error messages in my syslog file about hostnames not resolving. When I looked in /etc/default/bind9 I noticed ...
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41 views

DNS Hostnames - using internal and external zones

Looking for the correct or best practice way of doing this. If you have an external zone called example.com that runs your public mail, web, etc and an internal zone called corp.example.com that runs ...
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105 views

Debian Jessie bind9 permission problem

Whenever I start bind9 (/etc/init.d/bind9 start) I get the following reply: [FAIL] Starting domain name service...: bind9 failed This is what /var/log/syslog gives me: ... named[28282]: loading ...
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1answer
136 views

Many domains using a single IP address with BIND 9.7

I'm in the middle of migrating and configuring a web server with two domains (with one more in the future), and no sub-domains so far, but using a single IP address (for now). This type of ...
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1answer
90 views

BIND9 denying queries from IPs outsite localnet (External IPs) - Ubuntu 14.04

BIND9 denying queries from IPs outsite localnet (External IPs) on Ubuntu. options { listen-on port 53 { any; }; directory "/var/bind"; allow-query ...
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1answer
28 views

enable a user to chroot?

I have a script that I am running as a regular user (but one that can sudo). This script relates to BIND and gathers information each time it runs. It has not been working correctly and I noticed ...
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1answer
80 views

Named serial increment SED oneliner

I need to increment named serial and I want to do it with sed. I've done it like this: echo 2015092315 | gsed s/20[0-9][0-9][0-9][0-9]*/`date +%Y%m%d%H`/g But then I realized that updates to zone ...
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29 views

yum updated bind last week. Afterwards, ping, yum update, lynx stopped working

Per title I issued a standard yum update 10 days ago. The only packages updated were php and bind. Afterwards, the network went bonkers. yum update stopped working (couldn't resolve address), I can ...
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1answer
24 views

Is it possible to mix zones with DNSSEC enabled and disabled in BIND?

I have a dozen domains configured in a set of zones in BIND and I need to add a new one with DNSSEC enabled. If I enable DNSSEC: options { dnssec-enable yes; dnssec-validation yes; }; Will ...
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52 views

nagios plug-in for collecting DNS stats not working on RHEL server 6.7

We are trying to get the check_bind.sh script to automatically update the named.stats file. However, the file only seems to update when we run the script manually or with a cron job. We have this ...
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2answers
45 views

Security of zone transfers for bind

When having two public DNS servers that provide NS, A, MX, and CNAME records for your domain (website), is it necessary to encrypt the zone transfer data or is it fine to have the master-to-slave sent ...
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1answer
73 views

Network routing issue after connecting to VPN

This is how my home network is configured: Internet connects to Router. Bind runs on a dedicated home server (called plug). Router is configured to use plug as DNS servers. Till today morning ...
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1answer
32 views

Reverse DNS for external DNS server

I have my forward zone configured and now I am writing my reverse zone configuration. I've read through Pro DNS and BIND book and the examples given are if you own a portion of an IP address space ...
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1answer
54 views

TTL values for external DNS records

Upon setting up my zone files, I went back to review my TTL values. The default is set for 24 hours and I have individual TTL values set for each individual record. My thought was NS, MX, and CNAME ...
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56 views

why samba 4 is giving the following error attempting to join to domain

trying to join windows 7 clients to samba 4 that is using named as name server i am getting the following error: An attempt to resolve the DNS name of a domain controller in the domain has being ...
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28 views

Configure Bind to use specific server as starting point for recursive query?

I'm attempting to setup a Bind DNS server which (for security purposes) is highly limiting. Essentially I only want to allow DNS queries to be made to a particular set of DNS servers which do not ...
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1answer
55 views

setting up subdomain at centmin mod

I am in need of help at setting up subdomains in my CentOS using centmin Mod. This is what I have done so far. Purchase a VPS with IP address: xxx.xxx.xxx and hostname: ns.mydomain.com Install ...
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206 views

CentOS DNS Server for localhost

I need install the DNS Server (BIND - CentOS 7) to work only locally. I mean, the same CentOS that has the BIND will connect/search in the DNS, any other host will 'connect' with this machine. The ...
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1answer
27 views

Is it Possible to Define Two Name Servers and a HTTP Host in a Unix-Based Server With Only One Static IP Address

Is it possible to define two globally name servers (ns1.example.com and ns2.example.com) on the same server, with an static IP (e.g., 99.99.99.99), that hosts the HTTP through port 80. Why Am I Not ...
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1answer
125 views

Bind not working as expected. Possible misconfiguration

I have two Raspberry Pis with me - one works as a media player, another as a home server (I call it plug). In the plug I have installed a couple of applications that has web interfaces - SickBeard ...
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38 views

How Can I Set Up DNS Server on Virtual Network w/out Internet?

I'm trying to set up a virtual network populated with 4 CentOS 7 servers for testing purposes. I have successfully configured a Kerberos server and a secondary Kerberos server. However, when it ...
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1answer
274 views

named.run file deleted but data left on disk?

Today I had a name-server stop resolving DNS due to the /var directory being full from the named.run cache build up. I tried removing all the files using: rm -rf name* However, although running ls ...
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32 views

Bind config options (recursion and forwarders)

I am trying to setup bind to authorize one zone and cash all other requests from provider nameserver. Do two options recursion and forwarders have linked values and affect each other? Should I list ...
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37 views

Misc file corruption freebsd 10 and dns zone file

The computer is a VPS from Vultr. They tell me that "since it is loaded into RAM and not really a drive, nothing on the host would be causing this." One particular file, my zone file, will come up ...
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2answers
125 views

Bind doesn't resolve his authoritative zones

I'm currently setting a Bind 9 server on a CentOS 7 system, but I have some kind of unexpected behavior (even though it worked great in my VM). When I want to retrieve records from the zones it is ...
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1answer
5k views

How can I use CNAME in Bind properly?

I'm new to Bind/DNS and want to point/map SMTP, webmail and IMAP to my domain but a check in nslookup is failing. How can I nslookup SMTP this way? The error I get is: smtp.stylez24.com: NXDOMAIN ...
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26 views

centOs 7 Bind 9 pki directories what is the purpose

i would know what is the use of this directory, because he caused some bad behaviors(permissions issue) with the named-chroot service. So i would know why named-chroot need it to start. he contains ...
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90 views

Bind9 dynamic zone: where does the delay between update and availability come from?

I have set up a bind9 name server and created a dedicated (internal) subdomain, which can be updated by everybody for whatever purpose. The setup is very in simple and does work in general, but there ...