final tab shown within the ‘My System’ tab is the ‘Nagios Core’ tab:
‘Nagios Core’ tab allows you to set various Engine-level options, including whether
to log certain events, enabling core dumps (for debugging), logging passive
checks and using soft state dependencies.
for debugging if you find that Nagios® Core unexpectedly crashes.
dumps will be written to the nagios user's home directory. Check that the
nagios user can write to their home directory and that ulimit -c is not zero.
you see the following in the nagios.log file:
 Caught SIGSEGV, shutting down...
a core dump will not be produced, because the nagios daemon would have handled
a SIGSEGV signal, instead of allowing the OS to produce a core dump.
Soft State Dependencies
option determines whether or not Nagios® Core will use soft service state
information when checking service dependencies. Normally Nagios® Core will only
use the latest hard service state when checking dependencies. If you want it to
use the latest state (regardless of whether its a soft or hard state type),
enable this option.
can define dependencies in the service check configuration.