HP-UX Reference (11i v1 00/12) - 1M System Administration Commands N-Z (vol 4)

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vtdaemon(1M) vtdaemon(1M)

NAME

vtdaemon - respond to vt requests

SYNOPSIS

vtdaemon [-g[ngateway]][-n] lan_device lan_device ...

DESCRIPTION

vtdaemon responds to requests from other systems (via local area network) made by vt (see vt(1)).

vtdaemon spawns a server to respond to each request that it receives.

Options

vtdaemon recognizes the following command-line options and arguments:

-g[ngateway]

Causes vtdaemon to rebroadcast all requests received on one lan device to all other lan

devices speciﬁed on the command line. The optional parameter ngateway speciﬁes the

maximum number of vtgateway servers that can be in operation concurrently. If ngateway

is not speciﬁed, there is no limit on the number of vtgateway servers that can be in opera-

tion concurrently.

-n Causes vtdaemon to ignore all requests that have come through a gateway.

The remaining arguments are the full path names of lan devices that vtdaemon looks for requests on. If no

lan devices are speciﬁed, the default lan device is used.

The major number for this device must correspond to a IEEE 802.3 local area network device.

Another function of vtdaemon is to create portals and service portal requests. A portal is a callout device

that can be used by

uucico to communicate to another machine via local area network (see uucico(1M)).

Portals are created by

vtdaemon according to the conﬁguration information found in the ﬁle

/etc/uucp/L-vtdevices

. Each line in L-vtdevices has the format:

For each line,

vtdaemon creates a portal named calldev in /dev. Whenever this device is opened,

vtdaemon spawns a server that creates a connection to the system speciﬁed by nodename via the lan dev-

ice speciﬁed. If no lan device is speciﬁed, the ﬁrst one speciﬁed on the command line when

vtdaemon was

started is used (or the default lan device is used if no lan devices were speciﬁed on the command line).

vtdaemon should be terminated by sending signal SIGTERM to it. When vtdaemon receives this signal

it removes all of the portals it created in /dev before exiting.

DIAGNOSTICS

Diagnostics messages produced by vtdaemon are written to /var/adm/vtdaemonlog

WARNINGS

vtdaemon uses the Hewlett-Packard LLA (Link Level Access) direct interface to the HP network drivers.

vtdaemon uses the multicast address 0x01AABBCCBBAA. It should not be used or deleted by other

applications accessing the network. vtdaemon 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 net-

work.

Desktop HP-UX

If your system has been installed with the Desktop HP-UX product, then both ptydaemon and vtdae-

mon

will not be started by default. In order 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 either be rebooted for these changes to

take effect, or you can manually start both daemons by typing :

/usr/sbin/ptydaemon

/usr/sbin/vtdaemon

/dev/lan0

where /dev/lan0 is the character special device ﬁle corresponding to the IEEE802.3 local area network

device.

HP-UX Release 11i: December 2000 − 1 − Section 1M−−1041

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