Re: dich cai gi, khong dich cai gi

["Nguyen Cao Tri" <caotri@dit.hcmut.edu.vn>]

Hi,
> Hi ba'c Ut Say,
> Ma.ng cu?a DHHBK HCM la` ma.ng Intranet. Ho. chi? dde^? mo^.t website
> extranet cho "the^' gio+'i internet" va`o tho^i ba'c o+i, chi'nh vi` va^.y
> ma` chi? tha^'y te^n mo^.t website. Ba'c Tri' o+? CNTT ma` kho^ng ra`nh
> ddie^`u na`y u+ ?. Xa^y du+.ng intranet la`  ddu'ng tho^i vi` ddu+o+`ng
link
> co' 64Kbps.
Ba'c no'i nhu+ va^.y la` kho^ng chi'nh xa'c vi` ma.ng dhqg va` ma.ng DHBK
to^i la` ngu+o+`i thie^'t ke^' va` admin.

Tre^n DNS server cu?a Vie^.t Nam  chi? co' entry www.hcmut.edu.vn va`
ftp.hcmut.edu.vn nhu+ la` 2 host
ma` tho^i chu+' kho^ng pha?i la` 2 DNS Entry Do do cac subdomain cua DHBK
va` cac daihoc khac khong the nhin thay tu the gioi.

Con tren DNS Intranet cua vietnam thi DNS server cua DHQG Intranet la mot
DNS server entry.
Duong link cua Intranet DHQG TPHCM ( ma` DHBK  la` member) ket noi voi
postel 128Kbps va` Postel noi voi VDC 256Kbps ( hinh nhu+ moi tang len
512Kbps.

>
> Ve^` ta`i nguye^n IP thi`  vo^'n lie^'ng APNIC cho VN tho+`i gian dda^`u
> qua' khie^m to^'n(32 class C cho toa`n quo^'c, ba^y gio+` ta(ng le^n chu't
> ddi?nh la` 64), nhu+ng to+'i dda^y se~ tie^'p qua?n vo^'n theo version
mo+'i
> (IPv6) thi` cha('c cha('n thoa?i ma'i. VN ddang chua^?n bi. tha`nh la^.p
> VNNIC. Co' the^? trong tha'ng to+'i VNNIC ra ddo+`i. Lu'c ddo' vie^.c
ca^'p
> domain name, ip se~ thu le^. phi'. Ba^y gio+` "nghe`o IP"  thi` ca^'p
> kho^ng, nay mai "gia`u IP" thi` cha.c tie^`n dda^'y ba'c. va^.y ba'c Tri'
> muo^'n bao nhie^u IP dde^? pha't trie^?n  nhie^`u mie^`n con dde^`u thoa?i
> ma'i, chi? co' ddie^`u ba'c pha?i ta(ng 64kbps le^n 256kbps, 512 kbps hay
> 1E1... thi` mo+i dda'p u+'ng cho mo^.t ma.ng internet du`ng rie^ng co`n
> kho^ng ba'c cu+' pha?i du`ng 64kbps dde^? ta?i tho^ng tin va`o trong
> intranet cho ba` con du`ng.
> va`i gia?i thi'ch nhu+ va^.y kho^ng biie^'t co' to? cho ba'c ddu+o+.c
> kho^ng?
> Cheers ba'c,
> N.Ha
ta`i nguyen IP cua mang DHQG la 32 registered IP address.
Do do phai dung NAT va IP MAsquerate de cho phep intranet host connect to
Internet. Rieng cac server thi hien tai co 14 entry vao DNS cua VIETNAM nhu
la HOST. Cac IP khac khong co DNS name.

Nguyen Cao Tri
HCMC University of Technology
Department of Information Technology
Tel: +84 8 8658689 (Office) +84 91 916290 (Mobile)
Fax: +84 8 8653823 (Office) +1 419 7305282 (Personal)
Email: caotri@dit.hcmut.edu.vn