[Linux] DNS 루트서버부터 전체 구조 만들기 실습 정리

전체 DNS를 만들것이다.

나에게 할당된건 root DNS 와 캐시 DNS이다.

root서버의 역할은

전체 구조도 만들어서 배포. 및 named.ca 만들어서 배포

vi /var/named/named.ca

;       This file holds the information on root name servers needed to

;       initialize cache of Internet domain name servers

;       (e.g. reference this file in the "cache  .  <file>"

;       configuration file of BIND domain name servers).

;

;       This file is made available by InterNIC

;       under anonymous FTP as

;           file                /domain/named.cache

;           on server           FTP.INTERNIC.NET

;       -OR-                    RS.INTERNIC.NET

;

;       last update:    Feb 04, 2008

;       related version of root zone:   2008020400

;

; formerly NS.INTERNIC.NET

;

.                        3600000  IN  NS    A.ROOT-SERVERS.NET.

A.ROOT-SERVERS.NET.      3600000      A     192.168.10.152

A.ROOT에 IPv4 아이피를 넣어줘야한다. IPv6넣으면 안된다.

vi /etc/named.conf

루트서버는 최상위 도메인이라 named.ca 필요없음.

options {

directory "/var/named";

};

zone "." {

type master;

file "root.zone";};

touch root.zone

chgrp named root.zone

chmod -R 770 /var/named

vi /var/named/root.zone

들어가서 수정하고 탭 맞춰줘야함

$TTL 1D

@ IN SOA ns. root.ns. (

                                        3       ; serial

                                        1D      ; refresh

                                        1H      ; retry

                                        1W      ; expire

                                        3H )    ; minimum

                IN      NS      ns.

                IN      A       192.168.10.152

ns              IN      A       192.168.10.152

edu.            IN      NS      ns.edu.

ns.edu.         IN      A       192.168.10.157

kr.             IN      NS      ns.kr.

ns.kr.          IN      A       192.168.10.162

kst14.          IN      NS      ns.kst14.

ns.kst14.       IN      A       192.168.10.167

deekay.         IN      NS      ns.deekay.

ns.deekay.      IN      A       192.168.10.172

vi /etc/resolv.conf

수정해준다.

nameserver 192.168.10.152

vi /etc/sysconfig/network-scripts/ifcfg-ens32

DNS1="192.168.10.152" 입력

systemctl restart named

*캐시 서버 설정

vi /etc/sysconfig/network-scripts/ifcfg-ens32

DNS1="192.168.10.153" 입력

vi /etc/resolv.conf

nameserver 192.168.10.153

vi /etc/named.conf

options {

directory "/var/named";

};

zone "." {

type hint;

file "named.ca";

};

vi /var/named/named.ca

;       This file holds the information on root name servers needed to

;       initialize cache of Internet domain name servers

;       (e.g. reference this file in the "cache  .  <file>"

;       configuration file of BIND domain name servers).

;

;       This file is made available by InterNIC

;       under anonymous FTP as

;           file                /domain/named.cache

;           on server           FTP.INTERNIC.NET

;       -OR-                    RS.INTERNIC.NET

;

;       last update:    Feb 04, 2008

;       related version of root zone:   2008020400

;

; formerly NS.INTERNIC.NET

;

.                        3600000  IN  NS    A.ROOT-SERVERS.NET.

A.ROOT-SERVERS.NET.      3600000      A     192.168.10.152

systemctl restart named

*154번으로 테스팅

vi /etc/resolv.conf

nameserver 192.168.10.168

host jjh.bin

host dk.kst14