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RE ŢELE DE CALCULATOARE ŞI INTERNET

RE ŢELE DE CALCULATOARE ŞI INTERNET. Ştefan Stăncescu. CUPRINS INTERNET definitii, istori c şi organe de administraţie. Adresare numerică, proiectare spaţiu local de adrese. Spaţiul de nume simbolice, domenii de nume, servere de domenii de nume.

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RE ŢELE DE CALCULATOARE ŞI INTERNET

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  1. REŢELE DE CALCULATOARE ŞI INTERNET Ştefan Stăncescu

  2. CUPRINS • INTERNET definitii, istoric şi organe de administraţie. Adresare numerică, proiectare spaţiu local de adrese. • Spaţiul de nume simbolice, domenii de nume, servere de domenii de nume. • Complemente TCP/IP. QoS şi mecanisme de asigurare a calităţii serviciilor. • Combaterea congestiei. • Gestiunea resurselor din INTERNET. SNMP • Tehnici de poştă electronică • Tehnologii de suprastructură la furnizorii de servicii INTERNET. • Aplicaţii în INTERNET, interfeţe şi servere de aplicaţii. • Motoare de căutare. Crowling • Semantic WEB. • WEB 2.0, Future WEB • Securitate pe INTERNET. • Lucrul cooperativ pe INTERNET. • Comunicaţii personalizate. Implicaţii sociale.

  3. Referinte: [1] Douglas E. Comer: Computer Networks and Internets (5th Ed), Prentice Hall, 2008 [2] Andrew S. Tanenbaum, David J. Wetherall: Computer Networks (5th Ed), Prentice Hall, 2011 [3] *** http://www.ietf.org.rfc.html Activităţile evaluate şi ponderea fiecăreia Laborator(L): (0-10) 30% Tema(T): (0-10) 20% Examen final(F): (0-10) 50% Cerinţele minimale pentru promovare E >= 4,5, cu condiţia L,T,F >= 5 Calculul notei finale E = 0,3*L+0,2*T+0,5*F

  4. CURSUL 1 INTERNET – DEF/ADMIN.

  5. CURSUL 1- INTERNET DEF/ADMIN • Internet - definitie • Sistem global de • Retele de calculatoare interconectate intre ele • Prin stiva de protocoale standard TCP/IP • Destinata utilizatorilor de pe tot globul terestru si chiar in afara lui. • Realizat ca retele de retele • Cuprinzand si reunind un numar mare de retele • publice, individuale, stiintifice, oficiale si neoficiale, raspandite gestrans dau larg geografic, • Folosind echipamente electronice si medii electrice sau optice, cu sau fara fir. • In vederea realizarii de servicii diverse de transport sau prelucrare de informatii in toata structura: • www browsers, email, file transfers, peer-to-peer networks, search engines, multimedia services and social media – DISTRIBUTED APPLICATIONS

  6. CURSUL 1- INTERNET DEF/ADMIN • Internet - istoric • 01_history_of_the_internet.ppt • 2002_0918_Internet_History_and_Growth.ppt • INTERNET Istoric.doc

  7. CURSUL 1- INTERNET DEF/ADMIN • Internet - admin • ISOC -Internet Society (1992), • pentru dezvoltarea deschisa, libera “Internet pentru toti”, • reuneste diferite grupuri implicate in gestiunea si dezvoltarea Internetului: • IETF - Internet Engineering Task Force, • IAB - Internet Architecture Board, • IESG - Internet Engineering Steering Group, • IRTF - Internet Research Task Force, • IRSG - Internet Research Steering Group. • IGF - Internet Governance Forum (Apatine de ONU)

  8. CURSUL 1- INTERNET DEF/ADMIN • Internet - admin adrese • ICANN - Internet Corporation for Assigned Names and Numbers • Centralizeaza si mentine spatiile de nume principale, coordoneaza asignarea • Numelor de domenii simbolice, • Adresele IP numerice, • Numerelor de port TCP/UDP pentru aplicatii, etc. • Alocarea de adrese IP e delegata la RIR-uri - Regional Internet Registries: • African Network Information Center (AfriNIC) for Africa • American Registry for Internet Numbers (ARIN) for North America • Asia-Pacific Network Information Centre (APNIC) for Asia and the Pacific region • Latin American and Caribbean Internet Addresses Registry (LACNIC) for Latin America and the Caribbean region • Réseaux IP Européens - Network Coordination Centre (RIPE NCC) for Europe, the Middle East, and Central Asia • United States Department of Commerce prin National Telecommunications and Information Administration Agency, aproba DNS root zone.

  9. CURSUL 1- INTERNET DEF/ADMIN

  10. CURSUL 1- INTERNET DEF/ADMIN RIPE Network Coordination Centre http://www.ripe.net/ - IP 193.231.236.66 : netnum: 193.231.236.0 - 193.231.236.255 netname: RDSNET descr: Romania Data Systems country: ro admin-c: RDS-RIPE tech-c: RDS-RIPE status: ASSIGNED PA mnt-by: AS3233-MNT mnt-lower: AS3233-MNT mnt-routes: AS3233-MNT source: RIPE # Filtered role: Romania Data Systems NOC address: 71-75 Dr. Staicovici address: Bucharest / ROMANIA phone: +40 21 30 10 888 fax-no: +40 21 30 10 892 abuse-mailbox: abuse@rcs-rds.ro admin-c: CN19-RIPE admin-c: GEPU1-RIPE tech-c: CN19-RIPE tech-c: GEPU1-RIPE nic-hdl: RDS-RIPE mnt-by: AS8708-MNT remarks: +--------------------------------------------------------------+ remarks: | ABUSE CONTACT: abuse@rcs-rds.ro IN CASE OF HACK ATTACKS, | remarks: | ILLEGAL ACTIVITY, VIOLATION, SCANS, PROBES, SPAM, ETC. | remarks: | !! PLEASE DO NOT CONTACT OTHER PERSONS FOR THESE PROBLEMS !! | remarks: +--------------------------------------------------------------+ source: RIPE # Filtered % Information related to '193.231.224.0/20AS8708' route: 193.231.224.0/20 descr: RDSNET holes: 193.231.224.0/24 origin: AS8708 mnt-by: AS8708-MNT source: RIPE # Filtered

  11. CURSUL 1- INTERNET DEF/ADMIN • Internet - admin ORGANE.doc

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