DNS 서버 관리

[실습] Etherchanne1 Bonding
Mode0(A-A), Model(A-S)
(ㄱ) /etc/modprobe.conf
(ㄴ) /etc/sysconfig/network-scripts/ifcfg-bond0
(ㄷ) /etc/sysconfig/network-scrips/ifcfg-eth0
(ㄹ) /etc/sysconfig/network-scrips/ifcfg-eth1
(ㅁ) reboot

190920

네트워크 설정 확인 명령어들
===========================
Chapter 03. DNS 서버 관리
===========================
Domain Name System -> 도메인 이름을 관리, 이름과 IP를 매핑시켜주는 역할
Domain -> 영역, 범위
Domain Name -> 영역의 이름

DNS Server
* Program : bin, bind-chroot, bind-utils, bind-libs + cashing-nameserver
* Daemon & Port & Protocol : named(53, tcp[master DNS 서버가 Slave DNS서버랑 통신/UDP[클라이언트가 서버에게 요청할 때)
* Config File : /etc/named.{cashing-nameserver.conf|rfc1912.zones}
* Sub Config File : /var/named/chroot/var/named/*
* Startup Script : /etc/init.d/named

ns(nameserver)lookup(검색)

[실습] /etc/hosts 파일에 대한 실습
[실습] Caching Only DNS 서버 구축
# yum -y install caching-nameserver
# chkconfig named on
# service named restart
[실습] DNS 서버 구성
# vi /etc/named.caching-nameserver.conf
# vi /etc/named.rfc1912.zones
# vi /var/named/chroot/var/named/example2XX.zone
# vi /var/named/chrrot/var/named/example2XX.rev
# service named restart
[실습] 도메인 등록
(ㄱ) NS : example.com. IN NS ns.example.com
  ns IN A 172.16.6.2XX
(ㄴ) MX : example.com. IN MX 10 mail.example.com
  mail IN A 172.16.6.2XX
(ㄷ) A : www IN A 172.16.6.2XX
(ㄹ) CNAME : ftp IN CNAME www
(ㅁ) PTR : 2XX IN PTR ns.example.com.

[실습] nslookup/dig/host CMD 사용법