Hey, I am encountering an issue with dnsmasq as a caching server only. I have couple instances of dnsmasq ontop of an alpine linux podman containers. The version I am using is: # /usr/sbin/dnsmasq -v Dnsmasq version 2.84rc2 Copyright (c) 2000-2021 Simon Kelley Compile time options: IPv6 GNU-getopt no-DBus no-UBus no-i18n no-IDN DHCP DHCPv6 no-Lua TFTP no-conntrack ipset auth cryptohash DNSSEC loop-detect inotify dumpfile
This software comes with ABSOLUTELY NO WARRANTY. Dnsmasq is free software, and you are welcome to redistribute it under the terms of the GNU General Public License, version 2 or 3. I am using couple upstream dns servers and if for any reason the upstream DSL connection is down dnsmasq thinks that the servers are down. Since it think both servers(2) are down for some reason it stops sending them queries for enough time that even if the DSL connection is back up it still thinks it's down. I have read in the past it happens and have seen this on couple systems. Currently What I am doing to verify if the service is up is to run a specific domain query every 15 seconds which the ttl for the domain is 300 seconds. Every query has a different random subdomain so it is expected to always verify that the service is up. If for any reason there is no answer it is assumed the service is down and it's being restarted. I would like to verify if there is a specific config option that can help me to mitigate this specific issue. If there isn't any existing one and since I have seen that it happens on couple embedded routers and Firewalls which use dnsmasq I would be happy to know what in the code is triggering this down state and to try and patch the sources to allow users to disable this feature. Thanks, Eliezer _______________________________________________ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk https://lists.thekelleys.org.uk/cgi-bin/mailman/listinfo/dnsmasq-discuss