DNS
DNS(Domain Name system ) is a distributed for computers , connected to the internet . It translates easily domain names to an ip address .The domain name is an essential component of the function of the internal. The DNS servers as phone or technological dictionary for the internet by translated the hostname to an ip address for example the domain name www.google.co.nz translates to the the ip address 95.182.213.111. The DNS could be quickly updated. DNS distributes the responsibility of assigning domain names and sets those names to ip address by giving authoritative name servers for each domain. The DNS s
DNS(Domain Name system ) is a distributed for computers , connected to the internet . It translates easily domain names to an ip address .The domain name is an essential component of the function of the internal. The DNS servers as phone or technological dictionary for the internet by translated the hostname to an ip address for example the domain name www.google.co.nz translates to the the ip address 95.182.213.111. The DNS could be quickly updated. DNS distributes the responsibility of assigning domain names and sets those names to ip address by giving authoritative name servers for each domain. The DNS s
DNS installing by the command :-
1- change hostname
- sysctl kernel.hostname =ksa.com
- edit /etc/host (add isa.com)
- edit /etc/hostname (ns1)
2- install bind9
apt-get install bind9
3- edit /etc/bind/named.conf.local
we create a zone for ksa.com
4- /etc/bind/zones
we create ksa.com.db
add A(www,NZ,US) , MX(mail exchange) , NS (this DNS server)
5- reverse DNS lookup
6- service bind9 restart
7- Test / evaluation
- nslook up
- server 172.0.0.1 (DNS server local machine)
– ksa.com
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