vtdaemon - respond to vt requests
vtdaemon [-g[ngateway]] [-n] lan_device lan_device ...
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.
vtdaemon recognizes the following command-line options and arguments:
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 operation 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:
<calldev>[,<lan device>] <nodename>
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 device
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
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in /dev before exiting.
Diagnostics messages produced by vtdaemon are written to
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 network.
If your system has been installed with the Desktop HP-UX product, then
both ptydaemon and vtdaemon 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 :
where /dev/lan0 is the character special device file corresponding to
the IEEE802.3 local area network device.
/var/adm/vtdaemonlog logfile used by vtdaemon.
/dev/lan0 default lan device name.
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