We've got a bug in Nagios's `ping` command format detection: https://bugs.gentoo.org/show_bug.cgi?id=468296
It's easy to reproduce by taking down your "lo" interface, or by filtering all icmp packets in iptables. Fortunately, you can override the auto-detection by passing it a magic string, and that works around the bug: --with-ping-command="/bin/ping -n -U -w %d -c %d %s" --with-ping6-command="/bin/ping6 -n -U -w %d -c %d %s" Those are the formats and executable locations that get detected on my machine. Can anyone think of a case where hard-coding these (using $ROOT) would backfire on me?
