12.06
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Users and administrators generally have a different view of their networks. Users can share printers and servers of a group, which usually means they are in the same geographic location and are on the same local network as the network administrator is responsible for keeping the network up and running. Common interests are less connection to be in a local area, and must think of a number of arbitrarily located users who share a set of servers, and perhaps also to communicate via a peer-to-peer technologies.
Network administrators see networks and the prospects of physical and logical. A physical point of view concerning the geographical location, physical cabling, and network components (routers, bridges, and application-level gateway to a physical medium. Logical networks, called TCP / IP architecture, subnets, map on one or more media physical. For example, a common practice in campus buildings is to make a series of network cables in each building seems to be a common subnet, using virtual LAN (VLAN) technology.
Users and administrators should consider, to varying degrees, the characteristics of trust and network range. Again using the terminology TCP / IP architecture, an intranet is a community of interests in private administration usually by a company, and is accessible only by authorized users (eg employees) [15]. Intranets are not going to connect to the Internet, but generally have a limited connection. An extranet is an extension of an intranet that allows secure communications to users outside the intranet (business partners, customers) [15].
Unofficially, the Internet is the set of users, enterprises and content providers that are interconnected by Internet Service Providers (ISP). From the technical point of view, Internet is the set of subnets, and aggregates of subnets that share the same registered IP address space and exchange of information on the accessibility of these IP addresses using the Border Gateway Protocol. Usually readable server names are converted to IP addresses, transparently to users, through the role of the board of the Domain Name System (DNS).
On the Internet, there may be business to business (B2B), business to consumer (B2C) and consumer to consumer (C2C) communications. Especially when money or information is exchanged, communication can be secured by any security mechanism for communications. Intranets and extranets can be stacked safely on the Internet, no Internet access for users and deputy heads, using a virtual private network (VPN).
Network administrators see networks and the prospects of physical and logical. A physical point of view concerning the geographical location, physical cabling, and network components (routers, bridges, and application-level gateway to a physical medium. Logical networks, called TCP / IP architecture, subnets, map on one or more media physical. For example, a common practice in campus buildings is to make a series of network cables in each building seems to be a common subnet, using virtual LAN (VLAN) technology.
Users and administrators should consider, to varying degrees, the characteristics of trust and network range. Again using the terminology TCP / IP architecture, an intranet is a community of interests in private administration usually by a company, and is accessible only by authorized users (eg employees) [15]. Intranets are not going to connect to the Internet, but generally have a limited connection. An extranet is an extension of an intranet that allows secure communications to users outside the intranet (business partners, customers) [15].
Unofficially, the Internet is the set of users, enterprises and content providers that are interconnected by Internet Service Providers (ISP). From the technical point of view, Internet is the set of subnets, and aggregates of subnets that share the same registered IP address space and exchange of information on the accessibility of these IP addresses using the Border Gateway Protocol. Usually readable server names are converted to IP addresses, transparently to users, through the role of the board of the Domain Name System (DNS).
On the Internet, there may be business to business (B2B), business to consumer (B2C) and consumer to consumer (C2C) communications. Especially when money or information is exchanged, communication can be secured by any security mechanism for communications. Intranets and extranets can be stacked safely on the Internet, no Internet access for users and deputy heads, using a virtual private network (VPN).
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