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Software program run in this environment cannot access files outside of that directory tree.This confined virtual environment is often called a “chroot jail”.It’s purpose in DNS zone files is to provide a way for the server to verify that the contents of a zone file are up-to-date.If the serial number in a zone file hasn’t changed since that zone was last loaded, named figures that it can ignore the file.Install packages: Then edit /etc/file acl “allowed” ; options ; logging ; zone “.” IN ; include “/etc/named.rfc1912.zones”; include “/etc/key”; zone “122.168.192.in-addr.arpa” IN ; zone “example.com” IN ; check config files for typo errors: of course,at this moment it’ll throw errors that files and reverse.db cannot be found,they don’t exist (yet). Template zone file is located at /usr/share/doc/bind-9.9.4/sample/var/named/named.localhost we can use it as a template for our zone files.
The example below shows a case where all clients # in a certain class get addresses on the /24 subnet, and all # other clients get addresses on the 10.0.29/24 subnet.subnet 192.168.122.0 netmask 255.255.255.0 # Hosts which require special configuration options can be listed in # host statements.If no address is specified, the address will be # allocated dynamically (if possible), but the host-specific information # will still come from the host declaration.server1 IN A 192.168.122.200 Lets’s “decipher” these entries @ means this zone SOA: The SOA record stores information about the name of the server that supplied the data for the zone root.(don’t forget period at the end) is mail address resposibile person for zone (although it dosen’t seems as e-mail address),remeber @ means “this zone in this case 🙂 2015052601 is serial zone number.