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Su dung Group Policy de quan ly mang trong Windows Vista

Group Policy da duoc gioi thieu trong Windows 2000 Server va no la mot thanh phan mang lai loi ich dang ke cho quan tri vien. Group Policy duoc nang cap va mo rong trong Windows Server 2003, tuy nhien khong co nhieu cai thien doi voi cac thiet lap thuc su ma Group Policy le ra nen co de quan ly viec ket noi mang.

Van de nay da duoc thay doi trong Windows Vista. Voi Windows Vista, quan tri vien co the su dung cac cong cu quen thuoc de quan ly moi thu tu cac thiet lap mang LAN den mo hinh bao mat mang, kha nang ket noi khong day va chat luong cua dich vu. Tat ca cac dieu nay co the duoc thuc hien thong qua cong cu quan tri Group Policy quen thuoc nhu Group Policy Management Console. Bai viet nay se xem xet mot so kha nang moi cua Group Policy trong Windows Vista – va mot so truong hop lien ket voi Longhorn Server – de quan ly cac truyen thong va kha nang mang.

Cac diem truy cap

Mot trong so nhung yeu to moi duoc mong muon nhat trong Group Policy la:

Cac thiet lap mang LAN chay day: Ban co the thong qua Group Policy de cau hinh cac ket noi chay day theo chuan 802.1x.

Che do bao mat: Cac client khong day, voi nhieu kha nang bao mat va hoat dong khac nhau trong cac phuong thuc bao mat khac, co the ket noi tat ca den mot diem truy cap duoc cau hinh voi mot bo nhan dang dich vu don (SSID) – giam bot ganh nang quan tri va giu cho ket noi don gian.

Kha nang mo rong va phat trien: Group Policy moi ho tro cac thuoc tinh cu the, nhu cac loai giao thuc xac nhan co the mo rong (Extensible Authentication Protocol) khac, nghia la cac loai phan cung khong dong nhat se nhanh chong duoc cau hinh bao mat hop nhat.

Dieu khien tren cac danh sach SSID da cho phep: Thong qua Group Policy, ban voi tu cach quan tri vien co the thiet lap mot danh sach cac diem truy cap khong day (cu the hon la cac SSID ) de client Vista co the truy cap hoac liet ke danh sach cac SSID cac client bi tu choi ket noi.

Chat luong dich vu (QoS)

Su ho tro QoS trong Windows Vista va Longhorn Server da duoc cai thien va hai he dieu hanh nay duoc du dinh tu truoc la co the lam viec cung nhau tot hon vao bat cu khi nao de bao dam bang tan luon on dinh cho cac ung dung hop phap, trong khi van toi thieu hoa anh huong cua cac ung dung va luu luong khong may lien quan – nhung can den nhieu bang tan.

QoS da tung duoc ho tro boi mot so cac thiet bi phan cung mang nhu switch va router. Khi Longhorn Server va Windows Vista duoc su dung cung nhau, chung se cho phep cac quan tri vien su dung Group Policy de thiet lap nguong hien thuc va chinh sach tang toc, uu tien hay quan ly muc luu luong dua tren ung dung dang gui, cac dia chi IP nguon hay dich, giao thuc duoc su dung hoac cong UDP hay TCP/IP nguon, dich.

Bao ve truy cap mang

Bao ve truy cap mang (NAP) la gi? Virus va malware doi khi bi chan dung boi su bao ve duoc trien khai muc may tram, nhung de de phong xa hon cach tin tuong nhat va de dang nhat de ngan chan su bung no cac thanh phan doc hai nay la ngan chan malware ngay tu khi chung moi truy cap vao mang – nhu vay hiem hoa khong the lay lan rong.

Trong Longhorn Server (va Windows Vista) Microsoft da tao mot nen tang nho do cac may tinh duoc kiem tra dua vao mot tap hop co so cho cac quan tri vien thong qua Group Policy. Neu may tinh cua ban khong the co cac chuan va thoa man co so do thi may tinh do co the bi cach ly, duoc bao ve khi truy cap vao mang cho toi khi nguoi dung sua may tinh bi loi nay.

NAP co the hoat dong khong tot trong mot so chuc nang chinh nhu: su hop le chinh sach an toan, nguyen tac va viec gioi han truy cap. Su hop le la qua trinh may tinh co gang ket noi vao mang duoc kiem tra va dua vao tieu chuan an toan nao do do mot quan tri vien da thiet lap.

Cac chinh sach bat buoc co the duoc thiet lap de quan ly cac may tinh loi, qua trinh hop le co the tu dong duoc nang cap hoac sua thong qua Systems Management Server hay mot so phan mem quan ly khac.

Gioi han truy cap co the la mot ky thuat duoc ep buoc cho NAP, ky thuat nay cung co the duoc thiet lap thong qua Group Policy. Trong che do hoat dong, cac may tinh loi xac nhan tinh hop le duoc dat vao mot vung truy cap da han che trong mang, dien hinh la no khoa tat ca cac luu luong han che va truy cap mang cho may chu an toan co cac cong cu can thiet de khac phuc may da bi loi.

Firewall Windows voi bao mat nang cao

Firewall Windows voi bao mat nang cao cho phep ban co the quan ly bat cu luc nao voi Group Policy. Ben canh do, nhung tinh nang huu ich cua no van duoc giu lai, chinh vi vay ban co nhieu quy tac thiet thuc hon va co the quan ly, dinh nghia cac nhu cau bao mat ro rang nhu tham dinh quyen va ma hoa mot cach de dang.

Cac thiet lap co the duoc cau hinh tren moi may tinh AD hay nhom nguoi dung co ban. Su ho tro ho so cung duoc cai thien tren moi may tinh. Hien tai co mot ho so khi mot may tinh ket noi den mien, mot ho so cho su ket noi mang rieng va mot ho so cho mot ket noi mang cong cong nhu mot diem truy cap khong day. Cac chinh sach co the duoc nhap va xuat mot cach de dang, thuc hien quan ly cau hinh tuong lua cua nhieu may tinh chac chan va don gian.


Theo ComputerWorld

Article source http://w4rum.com/840.t

[By Cao Tan Kiet] [03/Mar/07]
 
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