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Post subject: Re: WIFI a security
 Posted: 09.02.2005 - 15:28 #15777
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Basic
Joined: Feb 09, 2005
Posts: 1
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ja by som sa prave opacne potreboval dozvediet preco sa do jednej wifi siete nemozem dostat,
moj sused lebo mi dal heslo aj signal velmi dobre jeho chytam ale nejak nefunguje to ktovie preco?
inac von chodim bezne na wifi do kniznice kde je volny pristup a tam nemam ziaden problem teda aj teraz odtial reagujem o pomoc ziadam |
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Post subject: RE: Re: WIFI a security
Posted: 09.02.2005 - 18:17 #15783
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Basic
Joined: Okt 12, 2003
Posts: 354
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no as admin tej siete ta v sieti neche...
edit:
taketo otazky treba najprv prediskutovat so spravcom siete a az ked si nevies rady tak potom sa pytaj tu |
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Post subject: RE: Re: WIFI a security
Posted: 10.02.2005 - 15:17 #15829
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Basic
Joined: Feb 04, 2005
Posts: 175
Location: Gan
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| jj prediskutuj z adminom, ked mas heslo este ti chybaju IP adresy alebo ci ma DHCP a blokovanie na MAC adresi sa ho popitaj. |
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Post subject: WIFI a security
Posted: 23.03.2005 - 14:37 #17916
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Basic
Joined: Feb 21, 2004
Posts: 9
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| mne sa osvedcil sposob - AP je kompletne zafirewalovane + filtre MAC jedine co je otvorene na firewaloe zo trany wifi je L2TP server. Kazdy klient musi ,vytocit, L2TP tunel inac sa do siete nedostane. Toto riesnie poskytuje lepsi prehlad o aktivnych klientoch a taktiez aj vacsie moznosti managovania. L2TP bezi na 128bit crypt. |
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Post subject: RE: WIFI a security
Posted: 17.04.2005 - 11:47 #18913
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Basic
Joined: Apr 17, 2005
Posts: 1
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| Pomôže mi niekto?Chcel by som vedieť, do akej miery je účinný WEP klúč(čítal som,že to odradí len náhodného okoloiduceho), resp. čo je najbezbečnejší spôsob ochrany prenosu dát medzi dvoma WIFI?Všetci vlastníme všesmerové antény,čiže je možné zoskenovať signál,dá sa tomu zabrániť? |
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Post subject: RE: WIFI a security
Posted: 17.04.2005 - 11:58 #18916
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Majster
Joined: Jan 12, 2003
Posts: 4250
Location: /dev/null
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| Beecko: postavit nad celym wifi ipsec a vsetky data prenasat cez kryptovany tunel... |
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Post subject: RE: WIFI a security
Posted: 17.04.2005 - 15:58 #18929
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Guru
Joined: Feb 19, 2003
Posts: 1133
Location: blizko Trencina
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| a nevyhoda ipsecu je taka, ze si tym dost skomplikujes QOS |
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Post subject: RE: WIFI a security
Posted: 17.04.2005 - 16:22 #18934
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Majster
Joined: Jan 12, 2003
Posts: 4250
Location: /dev/null
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jmi: hehe, keby len komplikovany QOS, ale na to aby mu to rozumne chodilo pri vacsom mnozstve dat a/alebo spojeni bude potrebovat aj o hooodne silnejsie masiny na koncoch tunela  |
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Post subject: RE: WIFI a security
Posted: 18.04.2005 - 10:50 #18960
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Majster
Joined: Máj 12, 2004
Posts: 4579
Location: Bratislava
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| pocul som ze WEP berie min 30percent vykonu APcka a tym aj znizuje jeho priepustnost je to pravda? Potom je lepsie WEP radsej vypnut ajtak je naprd... |
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Post subject: RE: WIFI a security
Posted: 18.04.2005 - 11:09 #18961
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Basic
Joined: Jan 31, 2003
Posts: 418
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Chalan: zalezi od AP, cital som ze lacnejsie maju slabsi procesor, ktory to nemusi stihat spracovavat, nieco profesionalnejsie by mohlo ist lepsie...
alre konkretne odporucanie na znacku nemam  |
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Post subject: RE: WIFI a security
Posted: 18.04.2005 - 11:54 #18964
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Majster
Joined: Máj 12, 2004
Posts: 4579
Location: Bratislava
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| ale to iste plati asi aj u wpa ci radius? |
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Post subject: RE: WIFI a security
Posted: 18.04.2005 - 14:36 #18965
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Basic
Joined: Jan 31, 2003
Posts: 418
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radius asi nebude tak narocny, predpokladam ze samotne AP Radius bezne nerobi, ale pouziva na to existujuci Radius server,
pre WPA pravdepodobne plati to iste ako WEP
otazka do fora: mate niekde nasadeny HW pripadne SW AP s WPA ? skusenosti ? interoperabilita Lin-Win ? |
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Post subject: RE: WIFI a security
Posted: 18.04.2005 - 16:57 #18967
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Majster
Joined: Máj 12, 2004
Posts: 4579
Location: Bratislava
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| ja som wpa nenasadil kvoli tomu ze moja karta na notebook wpa nevie hehe inac nove asus karty a apcka pouzivaju tzv. wpa2 TKIP AES enkrypcia a vraj ta je tazko nalomitelna... |
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Post subject: RE: WIFI a security
Posted: 18.04.2005 - 17:47 #18968
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Guru
Joined: Feb 19, 2003
Posts: 1133
Location: blizko Trencina
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| na dobrych zariadeniach nie je vo vykone rozdiel pozorovatelny rozdiel medzi tym ked je wep zapnuty a vypnuty |
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Post subject: WIFI a security
Posted: 09.06.2005 - 17:22 #20417
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Basic
Joined: Apr 28, 2003
Posts: 117
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| Pouzivate WPA ? Mam na mysli WPA-PSK - celkom jednoducho sa to nastavuje (lahsie ako WEP) a ak das heslo 20 znakov + to ze malokto predpoklada ze to mas malo by to byt postacujuce. |
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