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CONDOR_POWER(1) HTCondor Manual CONDOR_POWER(1)

NAME

condor_power - HTCondor Manual

send packet intended to wake a machine from a low power state

SYNOPSIS

condor_power [-h ]

condor_power [-d ] [-i ] [-m MACaddress] [-s subnet] [ClassAdFile ]

DESCRIPTION

condor_power sends one UDP Wake on LAN (WOL) packet to a machine specified either by command line arguments or by the contents of a machine ClassAd. The machine ClassAd may be in a file, where the file name specified by the optional argument ClassAdFile is given on the command line. With no command line arguments to specify the machine, and no file specified, condor_power quietly presumes that standard input is the file source which will specify the machine ClassAd that includes the public IP address and subnet of the machine.

condor_power needs a complete specification of the machine to be successful. If a MAC address is provided on the command line, but no subnet is given, then the default value for the subnet is used. If a subnet is provided on the command line, but no MAC address is given, then condor_power falls back to taking its information in the form of the machine ClassAd as provided in a file or on standard input. Note that this case implies that the command line specification of the subnet is ignored.

condor_power relies on the router receiving the WOL packet to correctly broadcast the request. Since routers are often configured to ignore requests to broadcast messages on a different subnet than the sender, the send of a WOL packet to a machine on a different subnet may fail.

OPTIONS

Print usage information and exit.
Enable debugging messages.
Read a ClassAd that is piped in through standard input.
Specify the MAC address in the standard format of six groups of two hexadecimal digits separated by colons.
Specify the subnet in the standard form of a mask for an IPv4 address. Without this option, a global broadcast will be sent.



EXIT STATUS

condor_power will exit with a status value of 0 (zero) upon success, and it will exit with the value 1 (one) upon failure.

AUTHOR

HTCondor Team

COPYRIGHT

1990-2024, Center for High Throughput Computing, Computer Sciences Department, University of Wisconsin-Madison, Madison, WI, US. Licensed under the Apache License, Version 2.0.

August 3, 2024