The IETF (Internet Engineering Task Force) is responsible for the analysis and development of the different protocols used in IP-based networks. The IETF is composed for many working groups and is managed by the Internet Engineering Steering Group (IESG), Internet Architecture Board (IAB), and Internet Society (ISOC).
New Internet Engineering Task Force (IETF) group is a DNS PRIVate Exchange (DPRIVE) which primary goals are develops mechanisms that provide confidentiality between DNS Clients and Interactive Resolvers but it may also in the future consider mechanisms that provide confidentiality between Iterative Resolvers and Authoritative Servers, or provide end-to-end confidentiality of DNS transactions to address concerns about pervasive monitoring (RFC 7258), and maintain backwards compatibility with legacy DNS implementations.
Sometimes we see ourselves in the position of having to face the choice of one technology over another when carrying out a project many questions arise about the best solution to choose. It is very difficult to generalize premises to be followed in such an important phase, but there are certain factors that must be taken into account regardless of the type of project that we will deploy. Of all my point of view o...
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...me Function Protocols
7 Application Application services DNS, SMTP, HTTP, telnet
6 Presentation Compression and encryption, Data translation SSL
5 Session Session establishment,
Management and termination RPC, NetBios
4 Transport Segmentation and reassembly, Process level addressing,
Flow control TCP / UDP
3 Network Logical addressing, routing,
Datagram Encapsulation IP, IPv6, IPX, NAT, ICMP
2 Data Link Logical link control,
Media access control IEEE 802.11, IEEE 802.2
1 Physical Physical data transmission, Hardware specifications, Topology and design.
Table 1.1 Levels or layers of the OSI model
At this point I can conclude that ISO/OSI model is extremely important because connecting to a wide variety of equipment, sharing resources of high cost or difficult to access, flexibility in growth, centralized control and distribute processes, and share information.
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