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Getting ConnectedGetting ConnectedOverviewOverview
Essential QuestionsEssential Questions
What are the ways to transfer What are the ways to transfer files between computers? files between computers?
How do you use the tools? How do you use the tools?
How does the connectivity How does the connectivity increase your productivity?increase your productivity?
ObjectivesObjectives
Demonstrate basic Demonstrate basic operational procedures for operational procedures for Internet client software Internet client software including e-mail, Network including e-mail, Network News, FTP, Telnet from News, FTP, Telnet from multiple client stations. multiple client stations.
Use FTP to both send files to Use FTP to both send files to and retrieve files from a and retrieve files from a remote system. remote system.
The Internet TodayThe Internet Today
Worldwide network of networksWorldwide network of networks Government agencies, Government agencies,
educational institutions, educational institutions, hospitals, and commercial hospitals, and commercial organizationsorganizations
Phenomenal growth - 1 Phenomenal growth - 1 million/monthmillion/month
Largest connection of networks Largest connection of networks in the worldin the world
How the Internet WorksHow the Internet Works
Local Connections:Local Connections: ModemModem ISDNISDN DSLDSL CableCable SatelliteSatellite
Businesses/UniversitiesBusinesses/Universities T1, T3T1, T3
Router at provider’s point-of-presenceRouter at provider’s point-of-presence Small providers Small providers big providers big providers
The Internet uses TCP/IPThe Internet uses TCP/IP
TCP/IP is the basis TCP/IP is the basis for the Internet.for the Internet.
IP resides in the IP resides in the Network Layer.Network Layer.
TCP resides in the TCP resides in the Transport Layer.Transport Layer.
Network ProtocolsNetwork Protocols IPIP TCPTCP
Application ProtocolsApplication Protocols TelnetTelnet HTTPHTTP FTPFTP SMTPSMTP SNMPSNMP DNSDNS
Internet Protocol (IP)Internet Protocol (IP)
IP provides delivery services taking care of IP provides delivery services taking care of addressing ensuring the routers know what to addressing ensuring the routers know what to do with your data when it arrives.do with your data when it arrives.
Every computer on the Internet has a unique Every computer on the Internet has a unique address.address.
Information sent across IP networks is broken Information sent across IP networks is broken up into bite-sized pieces, called up into bite-sized pieces, called packetspackets. .
The information within a packet is usually The information within a packet is usually between 1 and about 1500 characters long.between 1 and about 1500 characters long.
Transmission Control ProtocolTransmission Control Protocol
Ensures reliability.Ensures reliability. TCP takes the information you TCP takes the information you
want to transmit and breaks it want to transmit and breaks it into pieces.into pieces.
TCP numbers each piece so TCP numbers each piece so receipt can be verified and the receipt can be verified and the data can be put back in the data can be put back in the proper order.proper order.
TCP/IP Applications/ServicesTCP/IP Applications/Services
SLIP and PPP SLIP and PPP Terminal Emulation (Telnet)Terminal Emulation (Telnet) File Transfer Protocol (FTP)File Transfer Protocol (FTP) HyperText Transfer Protocol (HTTP)HyperText Transfer Protocol (HTTP) Simple Mail Transfer Protocol (SMTP)Simple Mail Transfer Protocol (SMTP) Simple Network Management Protocol (SNMP)Simple Network Management Protocol (SNMP) Domain Name Service (DNS)Domain Name Service (DNS)
Various Connectivity TypesVarious Connectivity Types
Telnet: Terminal EmulationTelnet: Terminal Emulation Logs into remote host systemsLogs into remote host systems
FTP: File Transfer ProtocolFTP: File Transfer Protocol Client computer Client computer Remote Server Remote Server Logs in to the special file systemLogs in to the special file system
Various Connectivity TypesVarious Connectivity Types
HTTP: Hypertext Transfer ProtocolHTTP: Hypertext Transfer Protocol Underlies the WWWUnderlies the WWW HTML is standardized languageHTML is standardized language Many different file types accessible. Many different file types accessible.
SMTP: Simple Mail Transfer ProtocolSMTP: Simple Mail Transfer Protocol Provides a store-and-forward mail Provides a store-and-forward mail
capability between host computer mail capability between host computer mail systems on the networksystems on the network
MIME: Multimedia Internet Mail ExchangeMIME: Multimedia Internet Mail Exchange Standard for document attachments.Standard for document attachments.
DNS: Domain Name ServiceDNS: Domain Name Service
Maps network address Maps network address numbers to an easy to numbers to an easy to remember nameremember name
TelnetTelnet, , FTP and SMTP FTP and SMTP access DNS to locate names access DNS to locate names you’ve specified and you’ve specified and resolves them to a numeric resolves them to a numeric address and inserts it into a address and inserts it into a message for transport.message for transport.
136.24.64.13136.24.64.1388
www.name.comwww.name.com
Concept MapsConcept Maps
E -m a il
EvaluationsEvaluations
ReferencesReferences
From Networking 101 From Networking 101 Jim Cabral, Puget Technology Group, Inc. & Jim Cabral, Puget Technology Group, Inc. &
Tammy Ruth, Children’s Hospital and Medical CenterTammy Ruth, Children’s Hospital and Medical Center
www.pugettech.comwww.pugettech.com [email protected] [email protected]
[email protected]@chmc.org
