[DNS][설정] 통신사별 DNS

1. SK dns 210.220.163.82 219.250.36.130

2. KT dns 168.126.63.1 168.126.63.2

3. LG dns 164.124.101.2 203.248.252.2

4. 구글 dns

   8.8.8.8

   8.8.4.4