shadih rahman wrote: > Nagios uses check_ping for the host check of most hosts. > > The check is configured to send only one ping. > > So if Nagios receives a response, it is 0% packet loss. > > If no response, it is 100% packet loss.
> How is it possible for Nagios to lose 85% of one ping? The plugin issues 5 pings by default: [r...@webapps nagios]# /usr/lib64/nagios/plugins/check_ping -help check_ping v1991 (nagios-plugins 1.4.13) Copyright (c) 1999 Ethan Galstad <nag...@nagios.org> Copyright (c) 2000-2007 Nagios Plugin Development Team <nagiosplug-de...@lists.sourceforge.net> Use ping to check connection statistics for a remote host. Usage:check_ping -H <host_address> -w <wrta>,<wpl>% -c <crta>,<cpl>% [-p packets] [-t timeout] [-4|-6] Options: -h, --help Print detailed help screen -V, --version Print version information -4, --use-ipv4 Use IPv4 connection -6, --use-ipv6 Use IPv6 connection -H, --hostname=HOST host to ping -w, --warning=THRESHOLD warning threshold pair -c, --critical=THRESHOLD critical threshold pair -p, --packets=INTEGER number of ICMP ECHO packets to send (Default: 5) ... DR ------------------------------------------------------------------------------ Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge _______________________________________________ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null