check_ping: CRITICAL - Could not interpret output from ping command

[golfreeze]

ถ้าเจอปัญหาเรื่อง nagios check_ping: CRITICAL - Could not interpret output from ping command #46
sh-4.4# su - nagios
$ /bin/ping -n -U -w 30 -c 5 127.0.0.1
ping: socket: Address family not supported by protocol
$ /bin/ping -4 -n -U -w 30 -c 5 127.0.0.1
ping: socket: Operation not permitted


สามารถทำการแก้ไขได้โดย
sh-4.4# chmod +s /bin/ping
sh-4.4# su - nagios
$ /bin/ping -4 -n -U -w 30 -c 5 127.0.0.1
PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data.
64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.097 ms
64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.053 ms

==special thank : https://github.com/bodsch/docker-icinga2/issues/46