[{"data":1,"prerenderedAt":16},["ShallowReactive",2],{"blog-tag-en-dns":3},[4],{"path":5,"title":6,"description":7,"date":8,"tags":9},"\u002Fblog\u002Fen\u002Fk3s-dns-intermittent-ndots-conntrack-race","Your K3s DNS Fails a Few Times a Day. The Culprit Isn't ndots:5 or conntrack — It's Both, Multiplied","Intermittent DNS failures in K3s usually come from ndots:5 query amplification combined with a UDP conntrack race condition. We break down NodeLocal DNSCache's benefits and side effects, plus K3s's own coredns-custom persistence trap.","2026-09-15",[10,11,12,13,14,15],"k3s","kubernetes","coredns","dns","conntrack","nodelocal-dnscache",1792592705552]