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.
This setup works as well without any issues I have occoured.
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.
Reason: Administrator could not configure a slave DNS server as it cannot function properly unless SOA serial number is changed every time a DNS record is changed.
Result (if any): bind-dyndb-ldap plugin used to provision data from Identity Management DNS tree to the BIND Name Server updates DNS zone SOA serial number every time when the DNS zone or its record is modified, thus allowing Administrators to configure a slave DNS server for zones managed by Identity Management.
A secondary master DNS server is used to complement a primary master DNS server by serving a copy of the zone(s) configured on the primary server.
Secondary servers are recommended in larger setups.
In this way, DNS alleviates the need to remember IP addresses. Ubuntu ships with BIND (Berkley Internet Naming Daemon), the most widely deployed DNS server.