Apcupsd Notificationand Events . . . . . . . . . . . . . . . . 70
hid-ups andUSB Specific Information . . . . . . . . . . . . . 71
apcupsd NetworkMonitoring (CGI) Programs. . . . . . . . . 71
Setting upand Testing the CGIPrograms . . . . . . . . . . . 71
Configuring Your EEPROM . . . . . . . . . . . . . . . . . . . 79
Maintaining Your UPS. . . . . . . . . . . . . . . . . . . . . . . . . 82
What Various PeopleHave to Say aboutBatteries . . . . . . 83
Where CarlSuggests You Get Batteries . . . . . . . . . . . . 89
Frequently-AskedQuestions . . . . . . . . . . . . . . . . . . . . . . 90
Apcupsd Bugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Advanced topics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Customizing Event Handling . . . . . . . . . . . . . . . . . . . . . 96
apccontrol CommandLine Options . . . . . . . . . . . . . . . 97
Master/Slave Configurations . . . . . . . . . . . . . . . . . . . . . 100
Configuration Directives . . . . . . . . . . . . . . . . . . . . . 101
Master/Slave Problems. . . . . . . . . . . . . . . . . . . . . . 101
Network Problems with Master/Slave or Server/SlaveConfigurations 103
Controlling MultipleUPSes on oneMachine . . . . . . . . . . . . . 106
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Support forSNMP UPSes . . . . . . . . . . . . . . . . . . . . . . . 108
Connecting anSNMP UPS . . . . . . . . . . . . . . . . . . . 108
Building andInstalling apcupsd . . . . . . . . . . . . . . . . . 109
SNMP SpecificInformation . . . . . . . . . . . . . . . . . . . 109
Known Problems . . . . . . . . . . . . . . . . . . . . . . . . . 109
Alternate Ways To RunThe Network Information Server . . . . . 110
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