Linux - DNS

1. 리눅스에서 DNS서버(bind)
  1) 설치 yum install bind

  2) 설정 파일 /etc/named.conf

2. named.conf 파일
  1) 기본 설정
options {
        directory "/var/named";
};

zone "domain.com" in {
        type master;
        file "domain.com.zone";
};

  2) 설정 확인
named-checkconf 출력 결과가 없으면 정상

3. zone 영역 파일
  1) 영역 파일 설정
/var/named/domain.com.zone

;(name)         (ttl)   CLASS   TYPE    Origin          DNSMaster
;-------------------------------------------------------------------------------
$TTL 1D
@                       IN      SOA     ns.domain.com.     root.domain.com. (
                                        2018100201      ;serial number
                                        3600            ;Refresh
                                        1800            ;Retry
                                        36000           ;Expire
                                        86400           );TTL

;(name)         (ttl)   CLASS   TYPE    Value
;-------------------------------------------------------------------------------
                        IN      NS      ns.domain.com.
ns                      IN      A       [ip주소]
www                 IN      A       [ip주소]

*TYPE
NS : 이름 서버
A : IPv4 주소
AAAA : IPv6 주소
MX : 메일 서버

 

4. 확인
서버실행
systemctl restart named

서버실행확인
systemctl status named
netstat -anlp | grep :53

*클라이언트가 확인
윈도우에서 cmd 실행
nslookup 실행
server [DNS 서버의 IP주소]
www.domain.com