VT(1) — Series 300 Only

NAME

vt − log in on another system over lan

SYNOPSIS

vt nodename [ lan device ]
vt −p [ lan device ]

DESCRIPTION

vt enables a user to log in on another HP 9000 system ( nodename ) over an HP local area network. The −p option will cause vt to send a poll request over the local area network to find out what systems currently have vtdaemon(1M) running. 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 have to 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/receive data to/from the local area network. The major number for this device must correspond to a CIO IEEE802.3 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. When in command mode, the normal terminal editing conventions are available.

The connection should automatically be terminated upon logging off of the remote machine. If the connection is not terminated then this indicates that the ptydaemon on the remote system has either been terminated or restarted. In this case the user should enter command mode and use the quit command to terminate the connection.

Commands

The following commands are available. Only enough of each command to uniquely identify it need be typed.

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 will prompt for one. If current vt escape character will be printed if the user just hits return in response to this prompt.

help

? 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
Retrieve the remote-file and store it on the local machine as local-file. vt will prompt for the file names if they are not specified. The file transfer can be aborted by typing the interrupt character or hitting the break key.

put local-file remote-file

send local-file remote-file
Retrieve the local-file and store it on the remote machine as remote-file. vt will prompt for the file names if they are not specified. The file transfer can be aborted by typing the interrupt character or hitting the break key.

quit Terminate the connection and exit vt.

user user-name[:[password]]
Identify yourself to the remote vt server. vt will prompt for a password (after disabling local echo) if a colon (:) is appended to user-name. It is necessary to do this before any file transfer command can be used.

! [ shellcommand ]
Shell escape. The given command is given to a sub-shell to execute. If no command is given, then 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(2)) of the file being transferred.

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 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.

FILES

/dev/ieee Default lan device name.

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