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DNS is comprised logically of Domains but physically of zones.
A domain is a logical division of the DNS name space whereas a zone is physical, as the information is stored in a file called a zone file.
The following zone file db.will hold a DNS record to assist a nameserver resolve a fully qualified domain name to an IP address. For this we are going to need yet another file and that is db.192.168.0 with a following content:; ; BIND reverse data file for 0.168.192.; $TTL 604800 0.168.192. In our this case the IP address of our name server is 192.168.135.130.
Create and save db.with a following content:; ; BIND data file for ; $TTL 3h @ IN SOA ns1. ( 1 ; Serial 3h ; Refresh after 3 hours 1h ; Retry after 1 hour 1w ; Expire after 1 week 1h ) ; Negative caching TTL of 1 day ; @ IN NS ns1.
Default setup and execution of bind on Debian or Ubuntu may take around 200MB of RAM with no zones added to the config file.
Unless you reduce the memory usage of a bind via various bind "options" config settings, be prepared to have some spare RAM available just for this service.
In most cases you have a 1 to 1 relationship between a Domain and a DNS Zone i.e.
As shown in the diagram below: If you compare this to IP addresses and Domain names Notice Bill doesn’t have a list of players but managers i.e it doesn’t contain host names (A records) but Manager names (name server records NS records).For details how to install packages, see the distribution's package manager documentation.before you proceed with the installation and configuration of bind nameserver make sure that bind DNS server is exactly what you want.So Bill needs a list with the name and phone numbers of all the managers..The manager’s name isn’t really important just the phone number.
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Teams A, B, C and each team has 20 players in the squad.