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The time now is 28.03.2024 - 12:02


WIFI a security

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aixenprovence
Post subject: Re: WIFI a security  PostPosted: 09.02.2005 - 15:28 #15777
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Joined: Feb 09, 2005
Posts: 1

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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magnum
Post subject: RE: Re: WIFI a security  PostPosted: 09.02.2005 - 18:17 #15783
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Joined: Okt 12, 2003
Posts: 354

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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zok
Post subject: RE: Re: WIFI a security  PostPosted: 10.02.2005 - 15:17 #15829
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Joined: Feb 04, 2005
Posts: 175
Location: Gan
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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tomi_isp
Post subject: WIFI a security  PostPosted: 23.03.2005 - 14:37 #17916
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Joined: Feb 21, 2004
Posts: 9

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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Beecko
Post subject: RE: WIFI a security  PostPosted: 17.04.2005 - 11:47 #18913
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Joined: Apr 17, 2005
Posts: 1

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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si
Post subject: RE: WIFI a security  PostPosted: 17.04.2005 - 11:58 #18916
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Joined: Jan 12, 2003
Posts: 4250
Location: /dev/null
Beecko: postavit nad celym wifi ipsec a vsetky data prenasat cez kryptovany tunel...
 
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jmi
Post subject: RE: WIFI a security  PostPosted: 17.04.2005 - 15:58 #18929
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Joined: Feb 19, 2003
Posts: 1133
Location: blizko Trencina
a nevyhoda ipsecu je taka, ze si tym dost skomplikujes QOS
 
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si
Post subject: RE: WIFI a security  PostPosted: 17.04.2005 - 16:22 #18934
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Joined: Jan 12, 2003
Posts: 4250
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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 Smile
 
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Chalan
Post subject: RE: WIFI a security  PostPosted: 18.04.2005 - 10:50 #18960
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Joined: Máj 12, 2004
Posts: 4579
Location: Bratislava
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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paulie
Post subject: RE: WIFI a security  PostPosted: 18.04.2005 - 11:09 #18961
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Joined: Jan 31, 2003
Posts: 418

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 Sad
 
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Chalan
Post subject: RE: WIFI a security  PostPosted: 18.04.2005 - 11:54 #18964
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Joined: Máj 12, 2004
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Location: Bratislava
ale to iste plati asi aj u wpa ci radius?
 
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paulie
Post subject: RE: WIFI a security  PostPosted: 18.04.2005 - 14:36 #18965
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Joined: Jan 31, 2003
Posts: 418

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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Chalan
Post subject: RE: WIFI a security  PostPosted: 18.04.2005 - 16:57 #18967
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Joined: Máj 12, 2004
Posts: 4579
Location: Bratislava
ja som wpa nenasadil kvoli tomu ze moja karta na notebook wpa nevie Smile hehe inac nove asus karty a apcka pouzivaju tzv. wpa2 TKIP AES enkrypcia a vraj ta je tazko nalomitelna...
 
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jmi
Post subject: RE: WIFI a security  PostPosted: 18.04.2005 - 17:47 #18968
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Joined: Feb 19, 2003
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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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Sleyo
Post subject: WIFI a security  PostPosted: 09.06.2005 - 17:22 #20417
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Joined: Apr 28, 2003
Posts: 117

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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