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486Re: [php_greek] Re: sximatiko problima session

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  • Dimitrios Botsis
    Jan 6, 2004
      File Stampoulidi,
      diabase kalytera tin apantisi moy kai an
      kati den katalabeis pali, edw eimaste.

      Dimtirios Botsis
      http://www.neologic.gr


      ----- Original Message -----
      From: "Pavlos Stamboulides" <113@...>
      To: <php_greek@yahoogroups.com>
      Sent: Tuesday, January 06, 2004 1:00 AM
      Subject: [php_greek] Re: sximatiko problima session


      Agapitoi filoi,

      ti 8a pei einai gia 2 lepta anoixtos?

      To HTML protokolo einai stateless, diladi mporei to systima na se
      exei petaksei eksw edw kai 2 meres, alla an den exeis kleisei to
      browser sou, akoma blepeis ekeini ti selida me to mail sou. To ti
      papades 8a bgoun an kaneis kapoio klik einai allo 8ema....

      Sto paradeigma sou:
      An o G petaei ton A, ayto simainei oti to systima perimenei to
      epomeno klik toy A gia na bgalei ta errors, na zitisei ksana login,
      klp. Den mporei o server na ksekinisei tin epikoinwnia me ton browser
      sta kala ka8oumena.

      An twra kapoios xristis kleisei ton Browser tou, o Server einai
      xaroumenos kai nomizei oti akoma o xristis skeftetai na apantisei se
      ayta pou blepei. Kai edw erxontai ta dyo settings tis PHP sta
      sessions:
      session.gc_probability
      session.gc_maxlifetime

      H diadikasia legetai garbage collection kai ayto simainei oti 8a
      krinei ena session id poso palio einai wste na to petaksei.
      Prosoxi: Apofasizeis to Reaction Time toy xristi. Dhladi 2 lepta
      mporei na einai ligo an perimeneis o an8rwpos na grapsei dokimio se
      ena TextArea (opws egw, kali wra).

      Episis, yparxei kai o kindynos tou session hijacking, diladi na
      klepsei kapoios poniros xristis to cookie 'i to link apo ton browser
      tou pragmatikou xristi kai telika na zitisei ti selida tou xristi ws
      http://www.site.gr/editpersonalinfo.php?PHPSESSID=asoiurt324oi
      apo allo browser. To 8ema ayto einai megalo kai yparxoun diafores
      polyplokes texnikes gia na to antimetwpiseis, apla na ksereis ti 8a
      prepei akoma na psakseis an eisai arketa paranoikos 'i mplegmenos se
      paranoiko project.

      Se ena web banking application eida kai ena wraio javascript to opoio
      zitaei tin logout selida an kleiseis apla to para8yro tou browser me
      basi to antistoixo event tou browser (ayto xrisimopoioun kai kapoia
      tsontosites pou pas na kleiseis to ena para8yro kai bgainoun alla 2).

      Ayto fysika profylassei apo adespota sessions. An pali exeis kleisei
      tin Java, ante geia....

      Elpizw na se boi8aei kapws.

      --- In php_greek@yahoogroups.com, Alaios <alaios@y...> wrote:
      > " 8a ftiakseis ena aneksartito service elegxoy,
      > to opoio 8a blepei gia paradeigma ka8e 2 lepta,"
      >
      > -->Pos tha to ftiakso?
      >
      > " an ta trexonta sessions symfwnoun me tous
      > katagegramenous users sti basi soy."
      >
      > -->Pos na to elegxo ayto?
      >
      > Akoma kai etsi ean dokimaseis sto yahoo na kaneis
      > taytoxrona login, tote taytoxrona petai ekso ton
      > proto.... Etsi opos to les esy tha elegxo kathe 2
      > lepta, ara tha mporei epi 2 lepta na einai 2 fores
      > mesa kai na tou allaksei ta fota.



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