ca'c anh cho em hoi, em muo'n config FTP cua rh9.0 la`m server de cho ca'c ma'y Windown truy ca^.p FTP va`o, em phai config nhung buo'c gi` va` nhu the' na`o ???

Em da xe't user ro`i la`m DNS nhung khi ftp vo ^ thi` bao' loi~ :

ftp server < te^n may' >
-> user abc
~> 530 Must perform authentication before identifying user