Bao mat Windows Registry Ngan chan kha nang tan cong tu xa

Mac du duoc coi la "trai tim" cua he dieu hanh, nhung theo mac dinh, Registry trong tat ca cac he thong Windows van duoc "mo cua" tu do va co the tiep can thong qua mang Internet hoac mang noi bo. Mot hacker ky thuat co kha nang su dung diem yeu nay de tan cong vao he thong may tinh cua ca nhan hoac ca co quan. Chinh vi vay, de dam bao an toan, can phai vo hieu hoa con duong tiep can nay.

Chu y: Do co the phat sinh rui ro nen truoc khi chinh sua Registry, ban can phai tien hanh backup thanh phan nay.

Sua doi Registry

Doi voi Windows 2000, Windows XP, va Windows Server 2003:

Start --> Run.
Go Regedt32.exe, va click OK.

Tim toi:

HKEY_LOCAL_MACHINESYSTEMCurrentControlSet
ControlSecurePipeServers.

Neu khoa winreg da co san, ban se chuyen toi thuc hien buoc 8; con neu khong co, ban can tao moi gia tri nay bang cach chon Edit --> Add Key.

Dat ten khoa moi la winreg, lop REG_SZ.
Chon khoa moi, roi chon Edit --> Add Value.

Nhap cac thong so sau:

Name: Description
Type: REG_SZ
Value: Registry Server

Chon khoa winreg, va chon Security --> Permissions.

Ban co the them, bot hoac bo quyen cua cac tai khoan duoc liet ke.

Dong cua so Registry Editor, va khoi dong lai may tinh.

Chu y:

+ Neu ban co mot nhom tai khoan hoat dong tren may chu va may tram ma khong thuoc nhom quan tri, ban can cap quyen thich hop cho cac tai khoan nay.

+ Neu he thong ban dang tien hanh thay doi la may chu hoac he thong cho phep thuc hien ket noi tu xa doi voi nguoi dung hop phap, ban phai cap quyen truy cap cho cac tai khoan dich vu lien quan toi khoa winreg.

Sua doi mang

Ngoai cach can thiep truc tiep va Registry, ban can thuc hien mot so cong viec khac lien quan toi duong mang de bao dam an toan cho he thong. Do la khoa cac cong: TCP/UDP 135, 137, 138, 139, va 445 ngay tai router hoac ung dung tuong lua. Phong toa cac cong nay se khong chi vo hieu hoa kha nang truy cap tu xa toi registry ma con ngan khong cho tin tac thuc hien cac cuoc tan cong he thong Windows tu xa.

Tat cac cong tren cung se giup ban tang toc kha nang hoat dong cua he thong. Tuy nhien, truoc khi thuc hien ban can phai chac rang se khong con can cac dich vu lien quan toi cac cong tren.

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