Zgryźliwość kojarzy mi się z radością, która źle skończyła.
//-->.pos {position:absolute; z-index: 0; left: 0px; top: 0px;}Unit 16Connecting to the InternetObjectivesAfter completing this unit, you should be able to:Connect to the Internet using a regular modem and anISDN adapterDescribe how to connect to the Internet when using abroadband connection (cable or xDSL)Describe the security issues involved in connecting to theInternetApply reasonable security measuresConnecting to the InternetConnecting to the Internet = Establishing a channel whichallows you to send IP packets to your ISP and vice versaFour most common connection types:Regular modem connectionISDN connectionCable modem connectionxDSL connectionConnection types differ in:Cost (one-time, fixed and variable)Bandwidth, LatencyAvailabilityAdditional features such as fixed IP addressesModem ConnectionsUse an analog telephone line to establish a digital dataconnection (MOdulation/DEModulation)PPP is used for IP packet encapsulation between yourPC and the ISPs routerLinux workstationPPP connectionISP routerInternetEC AA CD OH RD TD TR MRpowerBuilt-in orexternalmodemPlain OldTelephoneSystemEC AA CD OH RD TD TR MRpowerISP modemModem Connections in LinuxExternal modems have device names/dev/ttySnCOM1 = ttyS0, COM2 = ttyS1Internal modems usually emulate a serial port - nothingspecialWinmodemsrequire a software driver which isusually only available under Windows (with a fewexceptions)To setup connection, need to invokepppdBest done using a graphical frontend such askpppzanotowane.pl doc.pisz.pl pdf.pisz.pl hannaeva.xlx.pl