Jan  4 17:17:53 ns1 named[21753]: Zone "lovejapan.co.kr" (file db.lovejapan): No d
efault TTL set using SOA minimum instead
Jan  4 17:17:53 ns1 named[21753]: master zone "lovejapan.co.kr" (IN) loaded (seria
l 2000092000)
Jan  4 17:17:53 ns1 named[21753]: Zone "ilovejr.co.kr" (file db.ilovejr): No defau
lt TTL set using SOA minimum instead
Jan  4 17:17:53 ns1 named[21753]: master zone "ilovejr.co.kr" (IN) loaded (serial
2000120400)
Jan  4 17:17:53 ns1 named[21753]: Zone "eyepass.co.kr" (file db.eyepass): No defau
lt TTL set using SOA minimum instead
Jan  4 17:17:53 ns1 named[21753]: master zone "eyepass.co.kr" (IN) loaded (serial
2000112700)
Jan  4 17:17:53 ns1 named[21753]: Zone "hanmail.co.kr" (file db.hanmail): No defau
lt TTL set using SOA minimum instead
Jan  4 17:17:53 ns1 named[21753]: master zone "hanmail.co.kr" (IN) loaded (serial
2000121205)
Jan  4 17:17:53 ns1 named[21753]: Zone "wwwpoctan.com" (file db.wwwpoctan): No def
ault TTL set using SOA minimum instead
Jan  4 17:17:53 ns1 named[21753]: master zone "wwwpoctan.com" (IN) loaded (serial
2000092000)
  에서  No deault TTL set using SOA minimum instead 가 무슨뜻인가요?...
빨리좀 알려주세요...~!~!~!~!~!