Configuring the DRAC 4 to Use a Serial or Telnet Text Console 43Configuring the DRAC 4 to Use a Serial orTelnet Text ConsoleThe DRAC 4 provides serial and telnet command interfaces designed to perform all of theconfiguration and systems management functions using the DRAC 4 Web-based interface orracadm CLI.The following section provides information about the serial/telnet text console features, andexplains how to set up your system so you can perform systems management actions through aserial/telnet console.Serial and Telnet Console FeaturesThe DRAC 4 supports the following serial and telnet console redirection features:• One serial client connection and up to four telnet client connections at one timeNOTE: When a telnet login is invalid, a single session is counted toward the maximum of foursessions for approximately one minute after the invalid login attempt. If there are already threevalid sessions, this invalid session will prevent further login attempts for that minute.• Access to the managed system consoles through the system serial port and through theDRAC 4 NIC• Serial/telnet console commands that allow you to power-on, power-off, power-cycle, reset,view logs, view sensor status, or configure the DRAC 4• Serial/telnet console support for the racadm command, which is useful for scripting• Command line editing and history• The connect com2 serial command to connect, view, and interact with the managed system textconsole that is being output through a serial port (including BIOS and the operating system)NOTE: If you are running Red Hat® Enterprise Linux on the managed system, the connect com2serial command provides a true Red Hat Enterprise Linux console stream interface.