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 vt(1)								       vt(1)




 NAME
      vt - log into another system over lan

 SYNOPSIS
      /usr/bin/vt nodename [lan_device]

      /usr/bin/vt -p [lan_device]

 DESCRIPTION
      vt enables a user to log into another HP 9000 system (nodename) over
      an HP local area network.	 The -p option causes vt to send a poll
      request over the local area network to find out what systems currently
      have vtdaemon running (see vtdaemon(1M)).	 An asterisk (*) following a
      nodename in the response indicates that the system is a vt gateway.
      Plus signs (+) following the nodename indicate how many vt gateways
      must be traversed to reach that system.

      The optional argument lan_device specifies a character special device
      name to use instead of the default device name to send and receive
      data to and from the local area network.	The major number for this
      device must correspond to a CIO IEEE 802.3 local area network device.

      Once a connection has been established, vt enters input mode.  In this
      mode, text typed is sent to the remote host.  To issue vt commands
      when in input mode, precede them with the vt escape character (see
      Commands below).	When in command mode, normal terminal editing
      conventions are available.

      The connection should terminate automatically upon termination of the
      login shell on the remote machine.  If the connection is not
      terminated upon exit, it is likely that the ptydaemon on the remote
      system has either been terminated or restarted.  To terminate a vt
      connection, enter command mode and use the quit command to terminate
      the connection.

    Commands
      vt recognizes the following commands.  Commands can be abbreviated by
      typing enough of the command to uniquely identify it.

      cd remote-directory	    Change the working directory on the
				    remote machine to remote-directory. This
				    command is applicable for file transfer
				    only.

      escape [escape-char]	    Set the vt escape character.  If a
				    character is not specified vt prompts
				    for one.  To print or display the
				    current vt escape character simply press
				    Return in response to this prompt.





 Hewlett-Packard Company	    - 1 -   HP-UX Release 11i: November 2000






 vt(1)								       vt(1)




      help or ?			    Print a vt command summary.

      lcd [directory]		    Change the local working directory.	 If
				    no directory is specified, use the
				    user's home directory.  This command is
				    applicable for file transfer and shell
				    escapes only.

      get remote-file local-file
      receive remote-file local-file
				    Copy remote-file to local machine and
				    store as local-file.  vt prompts for the
				    file names if they are not specified.
				    The file transfer can be aborted by
				    typing the interrupt character or
				    pressing the break key.

      put local-file remote-file
      send local-file remote-file   Copy local-file to the remote machine
				    and store as remote-file.  vt prompts
				    for the file names if they are not
				    specified.	The file transfer can be
				    aborted by typing the interrupt
				    character or pressing the break key.

      quit			    Terminate the connection and exit vt.

      useruser-name[:[password]]    Identify yourself to the remote vt
				    server.  vt prompts for a password
				    (after disabling local echo) if a colon
				    (:) is appended to user-name.  This
				    command must be executed before any file
				    transfer command can be used.

      ! [shellcommand]		    Shell escape.  The given command is
				    passed to a sub-shell for execution.  If
				    no command is given, a shell is started
				    and connected to the user's terminal.

    Access Control Lists (ACLs)
      When sending or receiving files using vt, optional ACL entries are
      removed.	New files have a summary of the access modes (as returned in
      st_mode by stat() of the file being transferred (see stat(2)).

 DIAGNOSTICS
      The diagnostics produced by vt are intended to be self-explanatory.

 WARNINGS
      vt uses the Hewlett-Packard LLA (Link Level Access) direct interface
      to the HP network drivers.  vt uses the multicast address
      0x01AABBCCBBAA. It should not be used or deleted by other applications



 Hewlett-Packard Company	    - 2 -   HP-UX Release 11i: November 2000






 vt(1)								       vt(1)




      accessing the network.  vt uses the following IEEE 802.3 sap (service
      access point) values: 0x90, 0x94, 0x98, 0x9C, 0xA0, 0xA4, 0xA8, 0xAC,
      0xB0, 0xB4, 0xB8, 0xBC, 0xC0, 0xC4, 0xC8, 0xCC, 0xD0, and 0xD4.  They
      should not be used by other applications accessing the network.

      When using vt on a system with multiple LAN cards installed, the
      optional command-line argument lan_device may be required if the
      remote system is not accessible through the default LAN device.  The
      appropriate lan_device is the one connected (either directly or by way
      of other gateways) to the remote system.

    Desktop HP-UX
      If your system has been installed with the Desktop HP-UX product,
      neither ptydaemon nor vtdaemon will be started by default. To start
      these daemons, change PTYDAEMON_START and VTDAEMON_START from a 0 to a
      1 in the /etc/rc.config.d/ptydaemon and /etc/rc.config.d/vt files,
      respectively. The system must be either rebooted for these changes to
      take effect, or you can start both daemons manually by typing the
      following commands:

	  /usr/sbin/ptydaemon
	  /usr/sbin/vtdaemon /dev/lan0

      where /dev/lan0 is the character special device file corresponding to
      the IEEE 802.3 local area network device.

 FILES
      /dev/lan0				      Default lan device name.
      /etc/rc.config.d/ptydaemon
      /etc/rc.config.d/vt

 SEE ALSO
      vtdaemon(1M), stat(2), lan(7), acl(5).





















 Hewlett-Packard Company	    - 3 -   HP-UX Release 11i: November 2000