The requested URL / was not found on this

http://www.devpia.com/MAEUL/Contents/Detail.aspx?BoardID=56&MAEULNo=22&no=114954&ref=114942

Not Found The requested URL / was not found on this server. IIS/7.2.1124 (Longhorn) Server at computermate.co.kr Port 80   위와같이 갑자기 에러메시지가 나와요...  ip주소로는 들어가는데요...url은 안들어가요 iis에서 폴더경로도 맞구요...   무엇때문에 그런가요..   OS나 IIS상의 문제라기보단 네임서버쪽 문제같네요...님의 computermate.co.kr 을 도스창에서  ping때려보세요 ping computermate.co.kr 이렇게요.  응답이 없을겁니다. 이 소리는 네임서버에서 computermate.co.kr이 어느아이피랑 연동되어있는지 찾지못한다는 소리인데...음.. 서버관리실쪽이나 서버를 호스팅하는쪽에 문의해보세요. 아마도 네임서버쪽이 잘못되어있을듯 싶네요