1) The daemon logs to syslog, disabled by default. 2) nagios-plugins is 6.7 MB installed, nrpe is 143KB, check_nrpe is 76KB, nrpe.cfg is about 8KB - total a bit over 7 MB . I would leave extra space for your nrpe.cfg to grow and for custom plugins. 3) Your syslog configuration is where you'll have t...