Configuring a small network, I had the problem to test if the Internet connectivity is working [side note: so I can use the result in the test in the "parents" directive of Nagios/Icinga, to avoid alarms for every target when the outside link is simply down]. The problem is to find suitable targets for testing "the Internet".
Some persons suggested me to use "facebook.com" (if it is down, the Internet is useless, anyway), some suggested 8.8.8.8 (always up and fast) and some suggested to ping the root name servers. They have good technical properties: always up, reply to ICMP echo, reliable. But I wonder what would happen if every small network with an OpenWRT router and Nagios starts pinging them every minute. Is it a reasonable use? Do the root name servers operators have an opinion about that? Is there a better alternative? [You have probably seen this project, which is partially related: <https://labs.ripe.net/Members/dfk/ripe-atlas-anchors>. A case where many small boxes testing an unwilling service created problems: <http://slashdot.org/story/06/04/07/130209/d-link-firmware-abuses-open-ntp-servers>.] _______________________________________________ dns-operations mailing list dns-operations@lists.dns-oarc.net https://lists.dns-oarc.net/mailman/listinfo/dns-operations dns-jobs mailing list https://lists.dns-oarc.net/mailman/listinfo/dns-jobs
