#service iptables restart 시 iptables 모듈을 제거하는 중: 멘트나오면서 정상 진행 안됨
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[root@www sysconfig]# nslookup
> www.whoishg.com
Server:         118.128.134.115
Address:        118.128.134.115#53

Name:   www.whoishg.com
Address: 118.128.134.103
> whoishg.com
Server:         118.128.134.115
Address:        118.128.134.115#53

*** Can't find whoishg.com: No answer
> 118.128.134.116
Server:         118.128.134.115
Address:        118.128.134.115#53

** server can't find 116.134.128.118.in-addr.arpa.: NXDOMAIN

  ==> 역방향 조회 가능하도록 reverse 설정 안되어서 발생함
> 118.128.134.103
Server:         118.128.134.115
Address:        118.128.134.115#53

** server can't find 103.134.128.118.in-addr.arpa.: NXDOMAIN

==> 역방향 조회 가능하도록 reverse 설정 안되어서 발생함

> 118.128.134.115
Server:         118.128.134.115
Address:        118.128.134.115#53

** server can't find 115.134.128.118.in-addr.arpa.: NXDOMAIN

==> 역방향 조회 가능하도록 reverse 설정 안되어서 발생함

 

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