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DNSP(gun)(wn)}
ߣ
1 ʲôInternet
Internet Internet W(wng)j(lu)ϵһ(g)(w)һ(g)W(wng)j(lu)ϵy(tng)ȫ](mi)؏(f)ʽɂ(g)Ӣĸ͔(sh)ֽMɡ . ָɎײ ibm.com һ(g)(hu)ƌW(xu)ĽǶȿѳɞ Internet ĻĽMɲ ̽翴ѱu(y)顰I(y)ľW(wng)̘(bio)](mi)һI(y)ҕԼa(chn)ƷĘ(bio)R(sh) -- ̘(bio) ҪԺr(ji)ֵҲѽ(jng)ȫI(y)J(rn)R(sh)
2 ʲôD(zhun)
ַD(zhun)ҲɷQURLD(zhun)l(f)һ(g)ָһ(g)Ѵڵվc(din)ӢķQ顰 URL FORWARDING ָ@(g)վc(din)ԭеW(wng)ַDZ^(f)syӛġwww.xxx.comD(zhun)l(f)http://www.xxx.com/xxx/xxx/xxx.htmlҲD(zhun)l(f)http://www.xxx.com/
3 ʲôDNS
DNSָ(w) (Domain Name Server)  Internet c IP ַ֮gһһ(du)(yng)mȻ˂ӛC(j)֮gֻܻJ(rn)R(sh) IP ַ֮gD(zhun)QQҪɌT(mn)(w)(li)ɣDNS M(jn)ķ(w)
4 ʲôҪע(c)DNSʲôx
Ո(qng) DNS ͑Լ O(sh) . ͑Ո(qng) DNS r(sh)h͑һՈ(qng)ɂ(g)
5 ʲôDNSע(c)ɹԟo(w)ʹ
ע(c) DNS (w)ͬr(sh)ԓ DNS (w)ϣ錢ҪM(jn)ע(c) DNS (w)C(j)O(sh)úЧע(c)ɹע(c) DNS (w)ſʽʹ
磺Ҫע(c) dns1.abc.com IP: 1.1.1.1 dns2.abc.com IP: 2.2.2.2 DNS (w)tύע(c)Ո(qng)횱M abc.com ĬF(xin) DNS (w)O(sh) dns1.abc.com ָ 1.1.1.1 dns2.abc.com ָ 2.2.2.2 (li) abc.com ׃ DNS (w)ҲҪµ DNS (w)O(sh)σɗlӛDNS^m(x)ʹ
6 cW(wng)ַʲô^(q)e
һ(g)W(wng)ַ£ http://www.xxx.cn (du)(yng)@(g)W(wng)վt xxx.cn ˂һ(g)ṩ WWW ϢC(j)(li)˕r(sh)@_(ti)C(j)ַQ www. (dng)L(wn)ҪL(wn)@_(ti)C(j)r(sh)g[(hu)ָ http Hypertext Transfer Protocol f(xi)hC(j)l(f)(sh)(j)Ո(qng)҂һ(g)ľW(wng)ַr(sh)(hu)ǰY http:// 


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