ENTRADA #1. UNIX. GRUPO F. FICHA 651743-4

UNIX

In 1994 Novell (who had acquired the UNIX systems business of AT&T/USL) decided to get out of that business. Rather than sell the business as a single entity, Novell transferred the rights to the UNIX trademark and the specification (that subsequently became the Single UNIX Specification) to The Open Group (at the time X/Open Company). Subsequently, it sold the source code and the product implementation (UNIXWARE) to SCO. The Open Group also owns the trademark UNIXWARE.

Today, the definition of UNIX ® takes the form of the worldwide Single UNIX Specification integrating X/Open Company's XPG4, IEEE's POSIX Standards and ISO C. Through continual evolution, the Single UNIX Specification is the defacto and dejure standard definition for the UNIX system application programming interfaces. As the owner of the UNIX trademark, The Open Group has separated the UNIX trademark from any actual code stream itself, thus allowing multiple implementations. Since the introduction of the Single UNIX Specification, there has been a single, open, consensus specification that defines the requirements for a conformant UNIX system.

Entrada#5 GATEWAY [Grupo-E Los de la bayardigans] 651743-4

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GATEWAY

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Johan Sebastian Garcia Ciro

A gateway is a network point that acts as an entrance to another network. On the Internet, a node or stopping point can be either a gateway node or a host (end-point) node. Both the computers of Internet users and the computers that serve pages to users are host nodes. The computers that control traffic within your company's network or at your local Internet service provider (ISP) are gateway nodes.

Entrada#4 ROM [Grupo-E Los de la bayardigans] 651743-4

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ROM

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Felipe Rodriguez Zuluaga

Read-only memory (ROM) is a class of storage medium used in computers and other electronic 

devices. Data stored in ROM can only be modified slowly, with difficulty, or not at all, so it is 

mainly used to distribute firmware (software that is very closely tied to specific hardware, and 

unlikely to need frequent updates).

Entrada#3 RAS [Grupo-E Los de la bayardigans] 651743-4

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RAS

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Sebastian Duque Quintero

A remote access is access from a computer to a resource physically located on another computer that is geographically elsewhere, through a local or external network (eg Internet).

In the remote access protocols are involved (In computing, a protocol is a set of rules used by computers to communicate with each other through a network by exchanging messages), and programs on both computers that allow receiving / sending the necessary data. Also must have a strong system security (network, such as protocols and programs). 

You can remotely access virtually any resource that provides one or more computers. You can access files, peripheral devices (such as printers), configurations, etc. For example, you can access a server remotely to configure, monitor the status of your services, transfer files, etc.

Entrada#2 TELNET [Grupo-E Los de la bayardigans] 651743-4

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TELNET

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Sebastian Palacio Hincapie

A terminal emulation program for TCP/IP networks such as the Internet. The Telnet program runs on your computer and connects your PC to a server on the network. You can then entercommands through the Telnet program and they will be executed as if you were entering them directly on the server console. This enables you to control the server and communicate with other servers on the network. To start a Telnet session, you must log in to a server by entering a valid username and password. Telnet is a common way to remotely control Web servers.

Entrada#1 SNMP [Grupo-E Los de la bayardigans] 651743-4

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SNMP

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Steven Parra Ortiz

Simple Network Management Protocol (SNMP) is a widely used protocol for monitoring the health and welfare of network equipment (eg. routers), computer equipment and even devices like UPSs. Net-SNMP is a suite of applications used to implement SNMP v1, SNMP v2c and SNMP v3 using both IPv4 and IPv6. The suite includes:

- Command-line applications:

- A graphical MIB browser (tkmib), using Tk/perl.

- A daemon application for receiving SNMP notifications (snmptrapd). Selected notifications can be logged (to syslog, the NT Event Log, or a plain text file), forwarded to another SNMP management system, or passed to an external application.

- An extensible agent for responding to SNMP queries for management information (snmpd). This includes built-in support for a wide range of MIB information modules, and can be extended using dynamically loaded modules, external scripts and commands, and both the SNMP multiplexing (SMUX) and Agent Extensibility (AgentX) protocols.

- A library for developing new SNMP applications, with both C and perl APIs.

ENTRADA 5 -GRUPO A -FICHA 751168

                                                                                ATM.
is a telecommunications technology developed to meet the high demand for transmission capacity for services and applications.
With this technology, in order to maximize the capacity of transmission systems, whether cable or radio, the information is transmitted and switched through permanently assigned channels, but in the form of short packets (ATM cells) constant length and can be individually routed using so-called virtual paths and virtual channels.

ATM card network of 25 Mbps. With PCI interface and twisted pair connection.