REELE DE CALCULATOARE I INTERNET tefan Stncescu 1

REŢELE DE CALCULATOARE ŞI INTERNET Ştefan Stăncescu

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 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. Qo. S 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 2. 0, Future WEB Securitate pe INTERNET. Lucrul cooperativ pe INTERNET. Comunicaţii personalizate. Implicaţii sociale.

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

CURSUL 1 INTERNET – DEF/ADMIN.

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

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

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)

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 (Afri. NIC) 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.

CURSUL 1 - INTERNET DEF/ADMIN

CURSUL 1 - INTERNET DEF/ADMIN RIPE Network Coordination Centre IP 193. 231. 236. 66 : http: //www. ripe. net/ - 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: AS 3233 -MNT mnt-lower: AS 3233 -MNT mnt-routes: AS 3233 -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: CN 19 -RIPE admin-c: GEPU 1 -RIPE tech-c: CN 19 -RIPE tech-c: GEPU 1 -RIPE nic-hdl: RDS-RIPE mnt-by: AS 8708 -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. 0/20 AS 8708' route: 193. 231. 224. 0/20 descr: RDSNET holes: 193. 231. 224. 0/24 origin: AS 8708 mnt-by: AS 8708 -MNT source: RIPE # Filtered

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