Submit passive check result for a service sending out duplic

Hi,
I’ve got Nagios-1.3 installed on rh7.3.The nagios.cfg i’m using is as below.Rest cfg files are as per the docs.

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/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 illegal_macro_output_chars=`~$:cry:'"<> resource_file=/usr/local/nagios/etc/resource.cfg nagios_user=root nagios_group=nagios check_external_commands=1 command_check_interval=-1 command_file=/usr/local/nagios/var/rw/nagios.cmd use_syslog=1 log_notifications=1 log_service_retries=1 log_host_retries=1 log_event_handlers=1ocal/nagios/etc/resource.cfg log_initial_states=1mesh/nagios-logs/status.log log_external_commands=1 service_reaper_frequency=10 sleep_time=1 service_check_timeout=60 host_check_timeout=30 event_handler_timeout=30 notification_timeout=30 ocsp_timeout=5 perfdata_timeout=5 use_agressive_host_checking=0 execute_service_checks=1 accept_passive_service_checks=1 enable_notifications=1 enable_event_handlers=1 process_performance_data=0 illegal_object_name_chars=`~!$%^&*|'"<>?,()= retain_state_information=1 state_retention_file=/usr/local/nagios/var/status.sav retention_update_interval=60 use_retained_program_state=1 interval_length=60 admin_email=nkaranuk@localhost
The issue i'm facing is that when an external command is run like "Submitting a passive check for a service" i receive two email alerts rather that just one. I've checked the no.of entries of this external command made in the nagios.cmd n found that just one entry is made per external command,is something like
[1138685516] PROCESS_SERVICE_CHECK_RESULT;nkaranuk;GENERIC_DB_CONNECTION;2;submitting a passive check manually
.So is this a normal behavior or i'm missing some key configuration that is causing these duplicate alerts.

looking forward to your thoughts,
nkaranUk

Multiple instances of Nagios running, perhaps?

Yeah thought of that… ran ‘ps axuw | grep nagios’ …got only single nagios process as below

root 1105 0.0 0.0 1816 840 pts/0 S 22:07 0:00 /usr/local/nagios/bin/nagios /usr/local/nagios/etc/nagios.cfg

Make sure that you are sending out alerts from the central nagios server ONLY. You would get multiple alerts if in fact, you where sending alerts from the remote host also.