Procs forked by nagios

Hi,
is it normal to have all the following processes forked when I execute nagios binary file?

Nagios web interface had a strange behavior lately, sometimes , values change without reason, or i can’t follow some links. It’s like there were more than one page generating every time.

nagios 28911 2792 0 15:43 tty1 00:00:00 nagios nagios.cfg nagios 28912 28911 0 15:43 tty1 00:00:00 nagios nagios.cfg nagios 28913 28912 0 15:43 tty1 00:00:00 nagios nagios.cfg nagios 29515 1 0 15:47 tty1 00:00:00 nagios nagios.cfg nagios 29516 29515 1 15:47 tty1 00:00:00 /usr/local/nagios/libexec/check_ping -H 10.7.145.201 -w 200.0,20% -c 600.0,60% -p 5 nagios 29517 29516 0 15:47 tty1 00:00:00 /bin/ping -n -U -w 10 -c 5 10.7.145.201

Thanks for the answers.

Sure, there will often be many running. If your pages are getting messed up, perhaps you have more that one nagios parent proc running.
Stop nagios
ps -ef|grep nagios
if all are dead, then start nagios. If not, then kill the ones alive.

ok, thank you!