3. 다음은 아래 DNS 관련 로그에 나타난 이 공격을 막기 위한 라우터 ACL 설정 명령어이다. (A), (B)를 기술하시오.
10-Feb-2016 13:21:41.757 queries: info: client 10.10.100.27#12451: view external: query: test.com IN ANY + (10.10.100.1) 10-Feb-2016 13:21:41.897 queries: info: client 10.10.100.27#32282: view external: query: test.com IN ANY + (10.10.100.1) 10-Feb-2016 13:21:42.054 queries: info: client 10.10.100.27#18676: view external: query: test.com IN ANY + (10.10.100.1) 10-Feb-2016 13:21:42.059 queries: info: client 10.10.100.27#20630: view external: query: test.com IN ANY + (10.10.100.1) 10-Feb-2016 13:21:42.193 queries: info: client 10.10.100.27#14893: view external: query: test.com IN ANY + (10.10.100.1) 10-Feb-2016 13:21:42.204 queries: info: client 10.10.100.27#14893: view external: query: test.com IN ANY + (10.10.100.1)access-list 1 deny ( A ) any any eq ( B )
정답 확인 | 맞췄어요 O | 틀렸어요 X |