Step 6 - Part 1- Editing the Necessary .CFG Configuration files

First we will the main configuration file

#cd /usr/local/nagios/etc

Below I am mentioning the lines that I have unhashed

#cat nagios.cfg

log_file=/usr/local/nagios/var/nagios.log

cfg_file=/usr/local/nagios/etc/checkcommands.cfg

cfg_file=/usr/local/nagios/etc/misccommands.cfg

cfg_file=/usr/local/nagios/etc/contactgroups.cfg
cfg_file=/usr/local/nagios/etc/contacts.cfg
cfg_file=/usr/local/nagios/etc/dependencies.cfg
cfg_file=/usr/local/nagios/etc/escalations.cfg
cfg_file=/usr/local/nagios/etc/hostgroups.cfg
cfg_file=/usr/local/nagios/etc/hosts.cfg
cfg_file=/usr/local/nagios/etc/services.cfg
cfg_file=/usr/local/nagios/etc/timeperiods.cfg

resource_file=/usr/local/nagios/etc/resource.cfg

status_file=/usr/local/nagios/var/status.log

nagios_user=nagios

nagios_group=nagios

check_external_commands=1

command_check_interval=-1

command_file=/usr/local/nagios/var/rw/nagios.cmd

comment_file=/usr/local/nagios/var/comment.log

downtime_file=/usr/local/nagios/var/downtime.log

lock_file=/usr/local/nagios/var/nagios.lock

temp_file=/usr/local/nagios/var/nagios.tmp

log_rotation_method=d

log_archive_path=/usr/local/nagios/var/archives

use_syslog=1

log_notifications=1

log_service_retries=1

log_host_retries=1

log_event_handlers=1

log_initial_states=0

log_external_commands=1

log_passive_service_checks=1

inter_check_delay_method=s

service_interleave_factor=s

max_concurrent_checks=0

service_reaper_frequency=10

sleep_time=1

service_check_timeout=60
host_check_timeout=30
event_handler_timeout=30
notification_timeout=30
ocsp_timeout=5
perfdata_timeout=5

retain_state_information=1

state_retention_file=/usr/local/nagios/var/status.sav

retention_update_interval=60

use_retained_program_state=0

interval_length=60

use_agressive_host_checking=0

execute_service_checks=1

accept_passive_service_checks=1

enable_notifications=1

enable_event_handlers=1

process_performance_data=0

obsess_over_services=0

check_for_orphaned_services=0

check_service_freshness=1

freshness_check_interval=60

aggregate_status_updates=1

status_update_interval=15

enable_flap_detection=0

low_service_flap_threshold=5.0
high_service_flap_threshold=20.0
low_host_flap_threshold=5.0
high_host_flap_threshold=20.0

date_format=us

illegal_object_name_chars=`~!$%^&*|'"<>?,()=

illegal_macro_output_chars=`~$&|'"<>

admin_email=nagios

admin_pager=pagenagios