he thong mang

Cac chuyen gia bao mat vua phat hien duoc mot phuong thuc su dung JavaScript de ve ban do he thong mang gia dinh hoac doanh nghiep va tan cong vao cac may chu, thiet bi co the ket noi duoc. Cac doan ma JavaScript doc hai co the duoc nhung vao trong mot trang web. Moi khi trang web nay duoc duyet trong cac loai trinh duyet, doan ma do se am tham chay ma khong he dua ra cac canh bao cho nguoi dung. Cac chuyen gia nghien cuu cho biet nhung loai doan ma doc hai noi..

Hang NTT Communications cua Nhat Ban da phat trien thanh cong mot he thong mang tin nhan tuc thoi (IM) an toan co kha nang lien thong voi mang IM cua cac hang thu ba khac. He thong IM moi cua NTT theo ke hoach se bat dau duoc tung ra ban tren thi truong Nhat Ban va thi truong nuoc ngoai trong nua cuoi nam nay. Cot loi cua he thong tin nhan tuc thoi an toan nay mot may chu IM dong vai tro nhu la mot dau moi trung tam xu ly moi tin nhan duoc gui di trong mang. Dieu..

Truoc du bao ve su bung no nhu cau bang thong, lien minh cong nghe lon nhat the gioi Internet2 tuyen bo sang nam toi se cho trien khai mot he thong mang sieu toc voi toc do ket noi co the dat toi muc 100Gbps. Trong nhung thu nghiem gan day Internet2 moi chi dat duoc toc do ket noi ly thuyet 10Gbps. Song toc do ket noi nay da cao hon toc do ket noi bang thong chuan ung dung rong rai hien nay rat nhieu. Thanh qua nay la nho ap dung cong nghe gui du lieu di cung mot..

“Chu trong vao cac ky thuat, cong nghe mang cao cap va hien dai de xay dung he thong mang lon, tich hop cac ky thuat mang, cung cap nhieu dich vu voi toc do cao, chat luong tot va an toan”. Noi dung chuong trinh CCNP phien ban 3.0 moi nhat nay se duoc Trung tam Tin hoc (TTTH) thuoc Dai hoc Khoa hoc Tu nhien dao tao dau tien tai Tp.HCM tu ngay 11/09/2006 toi. Day cung la chuong trinh vua duoc Cisco chinh thuc cong bo va bat dau ap dung tu quy 4 nam 2006 tro..

HP ProCurve Networking da cho ra mat cac ung dung phan mem voi cac tinh nang quan ly mang don gian va tu dong, giup cac doanh nghiep tang cuong kha nang kiem soat, do bao mat va hieu nang hoat dong cua cac he thong mang phuc vu viec kinh doanh cua ho.

Ngay 12/9, Tap doan Juniper Networks da cong bo nhung nang cap moi cho He dieu hanh ScreenOS - he dieu hanh thoi gian thuc voi kha nang bao mat chuyen dung cho cac thiet bi tuong lua (firewall-FW) va Mang Rieng Ao IPSec (VPN). Theo Juniper, nhung cai tien o He dieu hanh ScreenOS 5.4 moi mang den cho cac khach hang nhung cong cu moi chong lai cac moi de doa bao mat noi dung dang ngay cang gia tang. Cac cong cu nay bao gom cac tinh nang bao mat quan ly de doa hop..

Ngay 9/8, Ngan hang Nha nuoc Viet Nam da lua chon nhung cong nghe tien tien cua Cisco Systems nham nang cao hieu qua hoat dong cua co so ha tang CNTT trai rong tren toan quoc cua minh dong thoi xay dung mot nen tang de quan ly tot hon he thong ngan hang va phu hop voi xu the phat trien cua cac thi truong tai chinh tren toan the gioi. He thong mang cua Cisco se duoc trien khai tai cac trung tam va chi nhanh cua Ngan hang Nha nuoc Viet Nam tren toan quoc. Nhung..

Hom qua (20/12), Siemens tuyen bo da lap mot ky luc moi trong toc do mang voi toc do truyen tai du lieu len toi 107Gbps, cao gap hai lan ruoi ky luc duoc xac lap truoc day. Toc do noi tren duoc ghi nhan trong cuoc thu nghiem moi nhat cua Siemens tien hanh tai My. Trong do du lieu duoc truyen di trong duong truc cap quang co do dai len toi khoang 160km. Day cung la lan dau tien Siemens tien hanh thu nghiem cong nghe mang moi o ben ngoai phong thi nghiem. Siemens..

Mot nguoi dan ong song tai thanh pho Miami (My), ngay hom qua, da bi ket toi an cap hon 10 trieu phut goi VoIP va dem ban lai voi gia 0,004USD mot phut. Ban cao trang cua co quan cong to My khang dinh Edwin Pena da tra cho mot hacker co ten Robert Moore mot khoan tien khoang 20.000USD de giup anh ta dinh huong mot cach bat hop phap cac cuoc goi dien thoai qua Internet tren he thong mang cua 15 hang cung cap dich vu VoIP khac nhau. Pena lai tu minh gia mao la dai..

Cac chuyen gia nghien cuu bao mat vua phat hien mot truc trac trong phuong thuc ket noi mang cua Windows hoan toan co the bi tin tac loi dung de an cap du lieu. Hang bao mat IOActive cho biet loi bao mat tren thuc ra la mot loi thiet ke trong he dieu hanh. Loi nay phat sinh trong qua trinh Windows ap dung thiet lap proxy. Hau qua la tin tac co the truy cap, chen them cac proxy doc hai va doc duoc moi du lieu duoc truyen tai tren he thong mang muc tieu. "Dieu nguy..

He thong mang khong day (Wireless LAN-WLAN) theo chuan 802.11 hien nay da duoc ap dung khap noi tren the gioi. WLAN noi bo tien dung va nhat la khong con phai thay canh day nho (cable) chang chit trong phong lam viec hay trong cong ty. Tuy nhien van de dau dau sau khi da thiet lap he thong mang chinh la lam sao de bao mat duoc he thong, chong lai su xam nhap cua cac hacker.

Phan mem doc hai dau tien co kha nang tan cong thiet bi tro giup ca nhan (PDA) BlackBerry vua duoc dua ra gioi thieu cuoi tuan qua. Tai Dien dan Hacker Defcon cuoi tuan qua, chuyen gia nghien cuu Jesse D"Aguanno cho biet ong da phat trien thanh cong chuong trinh BBProxy co kha nang lay nhiem len BlackBerry va cho phep ke tan cong quyen truy cap vao he thong mang ma thiet bi dang ket noi den. BBProxy loi dung lien ket giua BlackBerry voi may chu email de dot nhap..

Cac chuyen gia nghien cuu bao mat vua phat hien mot truc trac trong phuong thuc ket noi mang cua Windows hoan toan co the bi tin tac loi dung de an cap du lieu.Hang bao mat IOActive cho biet loi bao mat tren thuc ra la mot loi thiet ke trong he dieu hanh. Loi nay phat sinh trong qua trinh Windows ap dung thiet lap proxy. Hau qua la tin tac co the truy cap, chen them cac proxy doc hai va doc duoc moi du lieu duoc truyen tai tren he thong mang muc tieu."Dieu nguy..

Cuc hang khong lien bang My (FAA) canh bao, tin tac hoan toan co the ha guc Boeing 787 Dreamliner, neu chung khai thac thanh cong lo hong bao mat chet nguoi trong he thong mang may tinh tich hop truc tiep tren chiec sieu phi co nay.

Truoc day khi muon co mot he thong mang co ban tren nen Microsoft tai nha de thuc hanh thi phai co it nhat 2 may tinh duoc noi mang voi nhau trong do mot may dong vai tro may tram va mot may dong vai tro may chu, con neu muon lam nhung bai thuc hanh lon hon thi phai co nhieu hon 3 may tinh va mot switch de noi chung lai.

Trung tam Nghien cuu Cong nghe ky thuat Sai Gon - SaigonCTT vua dua vao giang day chuong trinh eSYSTEMS Network Professional Program (eN2P), chuong trinh dao tao chuyen gia he thong mang dau tien cua Viet Nam.

So luong cac vu tan cong qua he thong mang tin nhan tuc thoi (IM) va mang chia se tep tin ngang hang (P2P) da tang mot cach dang ke trong khoang thoi gian cuoi nam 2005. Day la ket luan cua mot hang bao mat da dua ra trong ngay hom qua (10/04). Song song voi viec gia tang manh me trong ve so luong la “chat luong” cac vu tan cong cung ngay cang phuc tap hon. Cac phuong thuc tan cong ngay cang nguy hiem hon phuc tap hon va kho du doan hon. Con so thong ke cua..

Spim, splog nguy hiem hon ca spam MessageLabs cho biet nhung ke chuyen gui thu rac (spammer) dang bat dau chuyen sang xu huong su dung tin nhan van ban qua dien thoai di dong, tin nhan tuc thoi, blog ma mang xa hoi trong nhung chien dich spam moi. MessageLabs - mot hang chuyen kinh doanh dich vu tin nhan tuc thoi va dich vu loc web - ngay hom qua da phat hanh mot ban bao cao cho biet spammer da bat dau nham den viec su dung cac phuong tien truyen thong khac ngoai..

Neu ngay tu bay gio cac nha cung cap dich vu khong dau tu nang cap mang bang thong rong thi chi trong khoang hai nam nua mang Internet se phai doi mat voi nguy co bi day lui tro lai “ky … dial-up”. Bung no bang thong Hang nghien cuu Nemertes Research nhan dinh su bung no trong nhu cau bang thong mang la nguyen nhan chu yeu dan toi tinh trang noi tren. Thong ke cua Nemertes Research cho thay nhu cau bang thong hien nay thuc su da trong con bao bung no manh..

Bon toi pham mang dang ngay cang tro nen co to chuc hon de cung kiem loi tu nhung thu doan phuc tap hon thay vi tu to bong ten tuoi cua minh bang nhung vu tan cong noi dinh noi dam. Ong Christopher Painter – Vu pho vu toi pham mang va cac van de so huu tri tue cua Bo tu phap My - cho biet da co mot su chuyen bien sau rong trong loai hinh toi pham mang dien ra trong vai nam gan day. “Doi tuong chuyen tan cong vao cac he thong mang may tinh da co mot su thay..

Cong ty Vien thong Quoc te (VTI) thuoc Tong cong ty BCVT Viet Nam vua hoan thanh viec lap dat he thong mang truyen so lieu toc do cao voi cong nghe va giai phap cua Cisco Systems, nham toi uu hoa cac ung dung tinh cuoc vien thong quoc te giua cac tong dai o Ha Noi, Da Nang va TP HCM.

Chu quan, qua tin vao cong nghe va su lo la trong quan ly van la diem yeu lon nhat khien cac he thong mang o Viet Nam thuong khong the dung vung truoc hacker... Hang loat website noi tieng o Viet Nam bi hacker tan cong hoac tham nhap ngang nhien nhu chon khong nguoi, thay doi hoac phat tan thong tin mat.

Nhan dip Cisco sap cong bo chien dich toan cau voi mot hinh anh moi, ba Sue Bostrom - Tong Giam doc Phu trach Tiep thi va Quan he Chinh phu Toan cau, va ong Charles Giancarlo - Tong Giam doc phu trach Phat trien cua Cisco, kiem Chu tich cua Cisco-Linksys LLC da tra loi phong van ve nhung quan diem, cac xu huong phat trien cua thi truong cung nhu co hoi danh cho Cisco.