Dig 명령어를 통해 txt 레코드 조회 방법 SeonghyeonMac:~ HappyGom$ dig -t txt google.com +short “v=spf1 include:_spf.google.com ~all” SeonghyeonMac:~ HappyGom$ dig -t txt daum.net +short “v=spf1 ip4:211.43.197.0/24 ip4:175.126.189.0/24 ptr ~all” SeonghyeonMac:~ HappyGom$ dig -t txt naver.com +short “v=spf1 include:_spfblocka.naver.com include:_spfblockb.naver.com include:_spfblockc.naver.com ...