BIND : DNS Issue #4

1. Issue - resolving a local domain name to an IP address fails with:> 192.168.1.3Server:         127.0.0.1Address:        127.0.0.1#533.1.168.192.in-addr.arpa      name = server.domain.site.>  server.domain.siteServer:         127.0.0.1Address:       ...

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BIND : WARNING: key file (/etc/bind/rndc.key) exists, but using default configuration file (/etc/bind/rndc.conf)

Solutions: 1. Make sure that the key in /etc/bind/rndc.key is the same as in /etc/bind/rndc.conf 2. Copy rndc.conf key to rndc.key 3. Move /etc/bind/rndc.conf to any another location, for example /temp 4. Reload the rndc utility: #rndc reload Source : https://support.plesk.com/hc/en-us/articles/115000153813-Warnings-appear-in-syslog-key-file-exists-but-using-default-configuration-file...

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BIND : DNS Issue #3

Issue : 16-Oct-2018 12:16:53.225 general: error: dumping master file: /etc/bind/tmp-rsY5WLIgLf: open: file not found  Solutions:   Edit : /etc/apparmor.d/usr.sbin.named Add : /etc/bind/* rw,  Source: https://ubuntuforums.org/showthread.php?t=108947...

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BIND : DNS Issue

Issue 1 : isc_stdio_open '/var/log/named/named_security.log' failed: permission denied Solutions  :chown -R bind:root /var/log/namedchmod -R 775 /var/log/named -------------------------------------------------------------------------------------------------------------- Issue 2 : "open: permission denied" upon zone transfer Solutions : Edit #/etc/apparmor.d/usr.sbin.named Add / Edit this...

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Ubuntu : Edit resolve.conf file

solution : #sudo vim /etc/resolvconf/resolv.conf.d/base then add: nameserver 8.8.8.8 nameserver 8.8.44 then update : #sudo resolvconf...

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BIND : Enable statistics

Error : WARNING: key file (/etc/bind/rndc.key) exists, but using default configuration file (/etc/bind/rndc.conf)Solution:1. Add this statement statistics-file "/var/cache/bind/named.stats"; to /etc/bind/named.conf2.Remove or rename rndc.conf in /etc/bind3. Add the following to /etc/bind/named.confinclude "/etc/bind/rndc.key";controls {inet 127.0.0.1 port 953allow { 127.0.0.1; } keys { "rndc-key";...

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BIND : DNS Issue #2

Error :...general: error: managed-keys.bind.jnl: open: permission deniedResolve :Delete the empty file /var/cache/bind/managed-keys.bind....

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BIND : DNS Issue #1

Q:Why do I get errors like "dns_zone_load: zone foo/IN: loading master file bar: ran out of space"?A:This is often caused by TXT records with missing close quotes. Check that all TXT records containing quoted strings have both open and close quotes.Source : http://www.bind9.net/BIND-...

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BIND : dnstop monitor BIND Server

dnstop: Monitor BIND DNS Server (DNS Network Traffic) From a Shell Prompt Refer : http://www.cyberciti.biz/faq/dnstop-monitor-bind-dns-server-dns-network-traffic-from-a-shell-prompt/ http://dns.measurement-factory.com/tools/dnstop/index.html...

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BIND : DNSSEC

Tutorial Enable DNSSEChttp://mattiasgeniar.be/2010/07/12/implementing-maintaining-dnssec-on-bind9-nameservers/DNSSEC validationhttp://dnsviz.net/http://dnscheck.iis.se/#dnscheckhttp://www.dnssecmonitor.org/index....

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DNS Server Problems

Problems:When do checking domain name and the DNS status at http://pingability.comErrorGot an error when connecting to ns.x.x.x /x.x.x.x with a request for ns.x.x.x/CNAME: IOException: I/O Error on name server x.x.x.x for ns.x.x.xHeads-upCould not perform the CNAME check. IOException: I/O Error on name server x.x.x.x for ns.x.x.xInformation No glue records found at parent name servers for ...

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Troubleshoot BIND DNS server problems

Refer to http://www.cyberciti.biz/tips/troubleshooting-bind-dns-2.h...

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Flush DNS Cache

Windows -> ipconfig /flushdns Ubuntu -> sudo rndc fl...

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Stealth DNS Server

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Internal and External DNS server

Two-in-one DNS server with BIND9 This tutorial shows you how to configure BIND9 DNS server to serve an internal network and an external network at the same time with different set of information.1. The problemIt is a typical problem in organizations that are growing that they have to resolve two problems at once: To have a DNS server for the internal network of the company because long ago there...

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Resolving DNS

Theory Behind Caching-Namerserver and BIND 9: Caching-Nameserver is a type of nameserver that will resolve a web addresses (domain names) from its next or master DNS, and will keep those entries in cache, after first time resolution it will resolve DNS queries locally, untill its TTL (Time To Live) is expired. BIND 9 is used to resolve domain resolution queries from it own database, as it is SOA (Start...

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