New to Observium and loving it so far.

I've done some reading, but I can not find an answer to my issue. I would really appreciate some pointers here.

After about 6 hours, i start seeing a looping PTR request:

23:14:37.602724 IP 192.168.155.13.39891 > 8.8.8.8.domain: 54851+ PTR? 15.155.168.192.in-addr.arpa. (45)
23:14:37.604162 IP 192.168.155.13.53879 > 8.8.8.8.domain: 58763+ PTR? 15.155.168.192.in-addr.arpa. (45)
23:14:37.605541 IP 192.168.155.13.52487 > 8.8.8.8.domain: 30717+ PTR? 15.155.168.192.in-addr.arpa. (45)
23:14:37.606941 IP 192.168.155.13.34473 > 8.8.8.8.domain: 5645+ PTR? 15.155.168.192.in-addr.arpa. (45)
23:14:37.608351 IP 192.168.155.13.45956 > 8.8.8.8.domain: 5585+ PTR? 30.151.168.192.in-addr.arpa. (45)
23:14:37.609741 IP 192.168.155.13.39834 > 8.8.8.8.domain: 4414+ PTR? 30.151.168.192.in-addr.arpa. (45)
23:14:37.611099 IP 192.168.155.13.35512 > 8.8.8.8.domain: 3031+ PTR? 15.155.168.192.in-addr.arpa. (45)
23:14:37.612479 IP 192.168.155.13.49633 > 8.8.8.8.domain: 12185+ PTR? 15.155.168.192.in-addr.arpa. (45)
23:14:37.613858 IP 192.168.155.13.59192 > 8.8.8.8.domain: 1926+ PTR? 15.155.168.192.in-addr.arpa. (45)
23:14:37.615309 IP 192.168.155.13.51916 > 8.8.8.8.domain: 36203+ PTR? 15.155.168.192.in-addr.arpa. (45)
23:14:37.616667 IP 192.168.155.13.49695 > 8.8.8.8.domain: 28584+ PTR? 30.151.168.192.in-addr.arpa. (45)
23:14:37.618245 IP 192.168.155.13.50620 > 8.8.8.8.domain: 13819+ PTR? 15.155.168.192.in-addr.arpa. (45)
23:14:37.619849 IP 192.168.155.13.42869 > 8.8.8.8.domain: 48052+ PTR? 15.155.168.192.in-addr.arpa. (45)

Manual lookup:
root@freshwater ~]host 192.168.155.15
Host 15.155.168.192.in-addr.arpa. not found: 3(NXDOMAIN)
[root@freshwater ~]# host 192.168.155.15 8.8.8.8
Using domain server:
Name: 8.8.8.8
Address: 8.8.8.8#53
Aliases:

Host 15.155.168.192.in-addr.arpa. not found: 3(NXDOMAIN)
[root@freshwater ~]#

I'm not running PTR on these IPs and have turned off discovery (i think) (i dont need it)

From my config:
$config['autodiscovery']['ip_nets']        = array("127.0.0.0/8");
$config['autodiscovery']['xdp']            = FALSE;
$config['autodiscovery']['ospf']           = FALSE;
$config['autodiscovery']['bgp']            = FALSE;
$config['autodiscovery']['libvirt']        = FALSE;
$config['autodiscovery']['snmpscan']       = FALSE;
$config['enable_printers']                 = 0;
$config['enable_sla']                      = 0;
$config['enable_ports_junoseatmvp']        = 0;
$config['enable_ports_adsl']               = 1;
$config['ignore_mount_optical']            = 1;
$config['poller_modules']['unix-agent']    = 1;

It's running on:
[root@freshwater observium]# httpd -v
Server version: Apache/2.4.6 (CentOS)
Server built:   May 12 2016 10:27:23
[root@freshwater observium]# php -v
PHP 5.4.16 (cli) (built: May 12 2016 13:45:17)
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2013 Zend Technologies
[root@freshwater observium]#

And a restart to apache does not kill this process. I can't seem to find what is doing it, but the ONLY thing on this server is Observium and nothing else. It's possible it isnt, but it seems to be :(

The only way to stop this is to restart the whole server for some reason

ps auxf from when the loop is happening and after an apache restart

root      6299  0.0  0.0      0     0 ?        S    23:43   0:00  \_ [kworker/3:1]
root         1  0.0  0.1 190528  5564 ?        Ss   Jun14   1:00 /usr/lib/systemd/systemd --switched-root --system --deserialize 21
root       436  0.0  0.1  36820  4856 ?        Ss   Jun14   8:01 /usr/lib/systemd/systemd-journald
root       458  0.0  0.0 118480  1260 ?        Ss   Jun14   0:00 /usr/sbin/lvmetad -f
root       475  0.0  0.0  44868  3464 ?        Ss   Jun14   0:00 /usr/lib/systemd/systemd-udevd
root       541  0.0  0.0 116724  1632 ?        S<sl Jun14   0:02 /sbin/auditd -n
root       564  0.0  0.0  19312  1260 ?        Ss   Jun14   0:27 /usr/sbin/irqbalance --foreground
root       566  0.0  0.1 249796  7616 ?        Ss   Jun14   7:00 /usr/bin/vmtoolsd
root       572  0.0  0.1 391788  5588 ?        Ssl  Jun14   0:39 /usr/sbin/rsyslogd -n
root       573  0.0  0.0  26400  1744 ?        Ss   Jun14   0:18 /usr/lib/systemd/systemd-logind
dbus       574  0.0  0.0  26724  1828 ?        Ss   Jun14   0:36 /bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation
chrony     576  0.0  0.0 115844  1900 ?        S    Jun14   0:02 /usr/sbin/chronyd
root       582  0.0  0.0 203368  1240 ?        Ssl  Jun14   0:00 /usr/sbin/gssproxy -D
root       592  0.0  0.2 434960  8368 ?        Ssl  Jun14   0:12 /usr/sbin/NetworkManager --no-daemon
polkitd    607  0.0  0.3 527584 12132 ?        Ssl  Jun14   0:07 /usr/lib/polkit-1/polkitd --no-debug
root       824  0.5  0.7 251120 27696 ?        Rs   Jun14  48:26 /usr/sbin/snmptrapd -Lsd -f
root       825  0.0  0.0  82560  3616 ?        Ss   Jun14   0:00 /usr/sbin/sshd -D
root     23255  0.0  0.1 143416  5544 ?        Ss   21:39   0:00  \_ sshd: root@pts/0
root     23257  0.0  0.0 115384  2060 pts/0    Ss+  21:39   0:00  |   \_ -bash
root     25194  0.0  0.1 143808  5928 ?        Ss   23:08   0:00  \_ sshd: root@pts/1
root     25196  0.0  0.0 115384  2112 pts/1    Ss   23:08   0:00      \_ -bash
root      8186  0.0  0.0 151168  1960 pts/1    R+   23:46   0:00          \_ ps auxf
root       829  0.0  0.0  29304  1004 ?        Ss   Jun14   0:00 /usr/sbin/xinetd -stayalive -pidfile /var/run/xinetd.pid
root       831  0.0  0.2 222956 10612 ?        Ss   Jun14   4:36 /usr/sbin/snmpd -LS0-6d -f
root       836  0.0  0.3 552452 15072 ?        Ssl  Jun14   0:00 /usr/sbin/libvirtd
root       841  0.0  0.0 126332  1572 ?        Ss   Jun14   0:02 /usr/sbin/crond -n
root       851  0.0  0.0 110036   852 tty1     Ss+  Jun14   0:00 /sbin/agetty --noclear tty1 linux
mysql     1171  0.0  0.0 113256  1580 ?        Ss   Jun14   0:00 /bin/sh /usr/bin/mysqld_safe --basedir=/usr
mysql     1600  0.4  5.9 1695560 232072 ?      Sl   Jun14  35:42  \_ /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --log-error=/var/log/mariadb/mariadb.log --pid-file=/var/run/mariadb/
root      2159  0.0  0.0  91140  2164 ?        Ss   Jun14   0:02 /usr/libexec/postfix/master -w
postfix   2161  0.0  0.1  91420  4132 ?        S    Jun14   0:00  \_ qmgr -l -t unix -u
postfix  10160  0.0  0.1  91244  3924 ?        S    22:30   0:00  \_ pickup -l -t unix -u
root     29025  0.0  0.3 396460 15080 ?        Ss   23:16   0:00 /usr/sbin/httpd -DFOREGROUND
apache   29027  0.0  0.3 397296 12784 ?        S    23:16   0:00  \_ /usr/sbin/httpd -DFOREGROUND
apache   29029  0.0  0.3 397556 12816 ?        S    23:16   0:00  \_ /usr/sbin/httpd -DFOREGROUND
apache   29031  0.0  0.2 396596  8644 ?        S    23:16   0:00  \_ /usr/sbin/httpd -DFOREGROUND
apache   29035  0.0  0.3 397296 12812 ?        S    23:18   0:00  \_ /usr/sbin/httpd -DFOREGROUND
apache   29039  0.0  0.3 397556 12816 ?        S    23:18   0:00  \_ /usr/sbin/httpd -DFOREGROUND
apache   29041  0.0  0.3 397300 12872 ?        S    23:18   0:00  \_ /usr/sbin/httpd -DFOREGROUND
apache     351  0.0  0.2 396596  8644 ?        S    23:28   0:00  \_ /usr/sbin/httpd -DFOREGROUND
apache    2450  0.0  0.2 396596  8644 ?        S    23:33   0:00  \_ /usr/sbin/httpd -DFOREGROUND
apache    4385  0.0  0.2 396596  8644 ?        S    23:39   0:00  \_ /usr/sbin/httpd -DFOREGROUND
apache    6301  0.0  0.1 396596  7652 ?        S    23:44   0:00  \_ /usr/sbin/httpd -DFOREGROUND
[root@freshwater observium]#

Any help appreciated

Thanks!