kompyutertarmoqlari va tarmoq xavfsizligi muammolari

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$15-ma'ruza 15-ma'ruza mavu: kompyuter tarmoqlari va tarmoq xavfsizligi muammolari reja: 1. tarmoq tushunchasi 2. tarmoq turlari 3. tarmoq topologiyalari 4. tarmoq vositalari 5. tarmoq xavfsizligi muammolari kompyuter tarmog'i - foydalanuvchilarni aloqa kanallari va kommutatsiya vositalarini qo'llagan holda o'zaro ma'lumot almashishlari, tarmoqdagi texnik, dasturiy, axborot resurslaridan foydalanishlari uchun yagona tizimga ulangan kompyuterlar to'plamidir. pan ( personal area network) – inson atrofida qurilgan tarmoq 1 3 5 4 2 man metropolitan area network – shaxar miqyosidagi\tarmoq gan global area network) – global (xalqaro, qit'alararo) tarmoq lan local area network – lokal tarmoq (bir ofis, bino ichidagi aloqa); can (corporate area network) – bir nechta tarmoqdan tashkil topgan tashkilotning yagona tarmog'i 11/14/2022 5 tarmoq aloqa komponentlari 11/14/2022 6 mis kabel a) o'rama juft kabel b) koaksial optik(shisha) tolali kabel simsiz aloqa 11/14/2022 8 11/14/2022 10 11/14/2022 12 11/14/2022 14 11/14/2022 16 tarmoq komponentlari (qurilmalari) 11/14/2022 24 enddevise oxirgi qurilmalar oraliq qurilmalar enddevise 11/14/2022 …$

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mkohhhm oepau. kommbrotep tapmok ap oy — oup oupura ocohtimk onan mabjiymot ba pecypcuaphhu takchmjialll yy4yh ylanrah komiibiotepsiap rypyxu. kyna0 coxaslap ya, 9jiektpuk vwh)kmhupuht, tejiekommy- hukallua, computer science, kenr tapkasirah komiibiotep axoopot texhoorhaapua tapmoru by — murepuer. komibiotep tapmokjiaph koh- enuuacuyan porzanannnaym. kn6epxapden3imk acocnapu (csf1316) tapmokj1aphuur jlokan tapmoklap (local area network, lan) muntakaspun tapmok (wide area network, wan) iwaxap ttapmorn - (metropolitan area network, man) kn6epxapden3imk acocnapu (csf1316) typs1apu lan ttapmorv komibiotepsap ba yiaphu oofrma0 typrah kypusimmasiapah wooopar oymmo, yap omarnqa onttra tapmokya oynaqn. xo3supya lan hhh ukkmta keht tapkasrah texhomoruacn: ethernet ba wi-fi kenr dboqanahmimokaa. wan tapmofru omataa wxkapara ojimhtah teickommyhhukallmaa = simhwanapuwan = po janlahaqurah tapmokkjiapwaru tyryhaphu onp-oupura oorsaiau. yui6y imhmaiap tadmokaaaru typsim komiibiotepsap opkasu mabjiymotiaaphh camapasim y3artmimuiura épyam oepagn. yui6y tapmox lan tapmorura kaparahya katta xaxkmra ora oyysicaga, wan tapmoryjyjah khumk. by tapmok maxap éku mwaxapya oyinao tapmokaphuhr y3apo oofrmahhuimhh ha3apya tytaqhu. tapmokj1aphhhr typjiapu ihaxcuv tapmmok (personal …

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jap opacigya xam mabjymotnap a@imalimhm wmkohmathhh oepanu. byhaa rooopybih mapkka3hii cepbepra yilahayv €kkm mabjiymot kaoyl kuiybuura 9irtyhua hyktayjah-hyktara y3athi acocufla etka3 way. hlaxcun tapmmok, pan —_ * transmission of data through : short-range radio waves oven wakaabiewinwewawen ne moe skaoanakeebaeuenten wireless enabled =~ hm . devices a ma3kyp tapmok yphathjirah yiahwul oopkalim kyphimaslap opacuya mabsiymot ba (batwiaphu takchmalll mmkohuatmhu oepamn. ku6epxapdcvu3iuk acocuapu (csf1316) jlokas tapmmoksiap, lan lan tapmornhhar ad3asimkraph: ° yinaru éku oducyarn doiiaananybuniap opacua iiphhtepsaphhu ouprammkyaru doiqalahvil mmkohmathhu oepann; * lan tapmorn (doiiqanahypunra y3uqar computer uxthephh tapmokya muna yayh hmkohuath takimm 3taam; f ia computer * oapda mabjiymotiaaphh tapmokwarh atof karaslorga caklall ba yhah polijananybunsia tomohh ah ouprammkya dboiaanann mmkohhhm apath. lan tapmornhhnr kam4winkkaph: ' pf) = a * (paiimaphw takchmslahrah xouga doliqananul mmkohhathhh 8 takimm 91rahh 0k, otifaianvihh ha3opatiall y4yh ayloxuya xabqch3jink 4yopalaphhu kyphmihh taao 9tah; computer * ww i unstructured threat external threat? + = e structured …

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k kypwimaslaph, cbuty ékh poytepsapaaru aytehthukalna ycyllaphhuur etapsimya oapqouuim oy¥nmmacsuru * tapmok 6kh xhcooualll kypwimasaphh hotyfph co3ahhliy; * th3hm xh3matiaaphhh xabcns oyimarah tap31a co3iahhiih, %*kopuit co3jahhi xoathaa komp, waposwaphu hotyfph oomlkkapwimih; * xapcv3imk chécathaaru 3anmkhh 1o3ara kea talkmiothhht xabch3imk chécatuya komjalap ba kapuin yopamaphh hotyfph miltag 4qukuranu ca6ad oynanh. ku6epxandensnux acocnapu (csf1316) tapmok xabqcu3jimrnra kapatwiral xykkymjiap pazeeoka xyocymaapu * acochh xykymiaphh ocoh amasira olmmphi yayh taallikhiiot ba taapmok xakuarv axoopothh tymnalwhu makcay, kwayy; tapmok xakha axoopothy ty mal xypkymunapra mabkyy o¥nran notchumal 3ahimkhy anvkalll mmkohmhh sepalu. kupuw xyorcyuaapu * xykymum typ tcxhojiopm aap wan dbolifananran xouia tapmokka khphira xapakat kwalh; * pyxcatcu3 (oiiqananuu, kynon kkyt xykymh, mmthe3hu optthphll, yptara typran o7amm xykymh ba xak.laphu y3 wunra oa ku6epxapdbensmk acocnapu (csf1316) xuzmamoan 603 kequiuted yhoau (denial o dos) xyaicymaapu xy2#kymuh mwko3iiapra, cboliqaianybumiapra ba tallikmnothap za mabkyy oy iran oupop xu3mathu yexnalira ypuhalh; dos xyxymaapn 6upop axoopothu yrupmanmmnra 6ku wykormumra o76 kemmmacaya, …

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u — ping 6ytipyeunu robopuu — dns usu kugepxanieusni acocaapu (csf1316) pa3sbeaka xyxkymapn: icmp ckanep.al * mabiym wjactypui bocutanap épnamugqu icmp echo cypobhhh rooopamn. * arap xoct mapxyy oysica, icmp echo >xaboonhn robopamu. = zenmap ckahmpoeame mactpymerte: mpoduns momouye uens | tuit.uz ~) mpoduns ping scan ~ | [cranuposanne) ormens komavaa | nmap -sn tuit.uz cepsncei bowoanmap moprei/ysnbi tononorua fletannysna cxanuporanue oc 4 yaen nmap -sn tuit.uz @ tuituz (195.158.2.2: starting nmap 7.8 ( https://nmap.org ) at 2019-10-25 10:25 caiaaiay acey (ceia) nmap scan report for tuit.uz (195.158.2.220) host is up (@.@@3@s latency). nmap done: 1 ip address (1 host up) scanned in @.38 seconds = detann ®unerp yanos ku6epxapdbensmk acocnapu (csf1316) pa3beakka xykymapnu: dns usu * dns w3h dns 30halapu =xakua axoopothh takthm fe intodns.. cr | | * dns 30ha mabjiymotiiapu y3una dns nomen op homjiaph, © komiibiotep ° mcmiaph, ip ‘ mah3hiap ba eh tapmok xakhjarn kynmao …

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15-ma'ruza 15-ma'ruza mavu: kompyuter tarmoqlari va tarmoq xavfsizligi muammolari reja: 1. tarmoq tushunchasi 2. tarmoq turlari 3. tarmoq topologiyalari 4. tarmoq vositalari 5. tarmoq xavfsizligi muammolari kompyuter tarmog'i - foydalanuvchilarni aloqa kanallari va kommutatsiya vositalarini qo'llagan holda o'zaro ma'lumot almashishlari, tarmoqdagi texnik, dasturiy, axborot resurslaridan foydalanishlari uchun yagona tizimga ulangan kompyuterlar to'plamidir. pan ( personal area network) – inson atrofida qurilgan tarmoq 1 3 5 4 2 man metropolitan area network – shaxar miqyosidagi\tarmoq gan global area network) – global (xalqaro, qit'alararo) tarmoq lan local area network – lokal tarmoq (bir ofis, bino ichidagi aloqa); can (corporate area network) – bir nechta tarmoqdan tashkil topgan tashkil...

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