[root@xxxxxxx etc]# chage -l nagios
Last password change : Jan 04, 2017
Password expires : never
Password inactive : never
Account expires : never
Minimum number of days between password change : 0
Maximum number of days between password change : 99999
Number of days of warning before password expires : 28
[root@xxxxxxx etc]#
[root@xxxxxxx etc]# grep nag /etc/group
nagios

992:nagios,apache
nagcmd

32793:nagios,apache
[root@xxxxxxx etc]#
[root@xxxxxxx etc]# ls -al /usr/local/nagios/var
total 24040
drwxrwxr-x. 6 nagios nagios 4096 May 9 21:41 .
drwxr-xr-x. 9 root root 4096 May 5 17:00 ..
drwxrwxr-x. 2 nagios nagios 4096 May 8 23:59 archives
-rw-r--r--. 1 nagios nagios 3921 May 9 21:41 host-perfdata
-rw-r--r--. 1 nagios nagios 34 May 9 17:09 nagios.configtest
-rw-r-----. 1 nagios nagios 6 May 9 14:34 nagios.lock
-rw-r-----. 1 nagios nagios 735668 May 9 21:38 nagios.log
-rw-r--r--. 1 nagios nagios 5 May 9 09:00 ndo2db.lock
-rw-r--r--. 1 nagios nagios 0 May 9 14:34 ndomod.tmp
srwxr-xr-x. 1 nagios nagios 0 May 9 09:00 ndo.sock
-rw-r--r--. 1 nagios nagios 3368 May 9 09:00 npcd.log
-rw-r--r--. 1 nagios nagios 4807341 May 9 14:34 objects.cache
-rw-r--r--. 1 nagios nagios 4807341 May 9 17:09 objects.precache
-rw-------. 1 nagios nagios 7131728 May 9 21:34 retention.dat
drwxrwsr-x. 2 nagios nagcmd 4096 May 9 14:34 rw
-rw-r--r--. 1 nagios nagios 0 May 9 21:41 service-perfdata
drwxr-xr-x. 5 nagios nagios 4096 May 5 16:59 spool
drwxr-xr-x. 2 nagios nagios 4096 May 9 21:40 stats
-rw-rw-r--. 1 nagios nagios 7080355 May 9 21:41 status.dat