7-4Direct Connections

Connecting Using a Terminal Server or Concentrator

A terminal server can be a perfect compliment to IRC, particularly in a data- center environment where servers are grouped in clusters. Through one terminal server, a remote administrator can gain access to a number of different servers either through a shared modem or through a local area network connection. This topology greatly decreases or eliminates the need for multiple modems and phone lines. This topology also provides another level of security since access can be restricted to a trusted private network or a centralized remote access server.

LAN

Terminal

Server

Management

Console

Modem

Modem

Server 1

Server 2

Server 3

Server 4

Figure 7-1. Typical terminal server topology

Figure 7-1 shows a typical terminal server topology. In such a configuration, the terminal server is directly connected to the integrated serial ports on a cluster of servers. The Integrated Remote Console feature of each server is configured for direct-connect access through the selected integrated serial port. Out-of-band access to any connected server can be obtained by establishing a TELNET connection through the terminal server to the appropriate port.

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Compaq 281862-002 manual Connecting Using a Terminal Server or Concentrator, 4Direct Connections