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Ubuntu bind slave not updating

Up to 7% of the total traffic arriving at some root servers consists of reverse queries for private IP addresses, and a complete routing infrastructure (AS112) has been constructed just to handle this problem.

Private IP addresses are any in the ranges 192.168.0.0/16, 172.16.0.0/12, and 10.0.0.0/8.

While ISPs are delegated the task of reverse-mapping public IPs, they have no such responsibility for private IP addresses. 14 IN PTR joe., which was probably not the intended result.

From now on, Plesk will automatically transfer all created, modified, and deleted zones to the slave server by executing the following commands for each slave server: # Creation /usr/sbin/rndc -c slave.config addzone ';' # Modification /usr/sbin/rndc -c slave.config refresh # Deletion /usr/sbin/rndc -c slave.config delzone Now, when you add a domain in Plesk, a DNS zone is automatically created on the slave server as well as on the master server.

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BIND's ; reverse map for 192.168.5.0/28 $ORIGIN 5.168.192. Localhost is used by many applications as shorthand when referring to the local PC, and is always mapped to the loopback address 127.0.0.1 (or ::1 for Ipv6).

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DNS performs IP address-to-name translation by manipulating the IP address and using reverse-mapped zones under the reserved domain name Now, by way of illustrating the sometimes confusing nature of the DNS, some organizations (especially smaller ones) elect to run both caching and authoritative functions in the same name server.

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After that, install the extension on the Plesk server.That makes DNS part of the critical infrastructure of the Internet.This article describes five things that you can do to keep you and your organization safe as well as reduce unnecessary load on the DNS infrastructure: ) or zone file fragments are included.This process is referred to as , which finally will return the IP address we require.Sometimes it also useful to be able to start with an IP address and find the name allocated to it; email systems especially use this technique as part of an antispam arsenal.So with all this information at our fingertips, let's look at five DNS issues that you should check to minimize unnecessary traffic on the DNS infrastructure, and help keep your organization running smoothly.