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# k3sa
adamant-kite-43734
10/04/2024, 5:41 PMThis message was deleted.
h
hundreds-evening-84071
10/04/2024, 5:42 PMis it not using hosts resolv.conf ?
c
chilly-ocean-42598
10/04/2024, 5:43 PMi have installed the cluster with the default settings
chilly-ocean-42598
10/04/2024, 5:43 PMlooks like it is not....
chilly-ocean-42598
10/04/2024, 5:47 PMcontainer image registry its able to resolve, just that inside the pod/container there is something wrong
chilly-ocean-42598
10/04/2024, 5:47 PM@hundreds-evening-84071 do you know what might have caused the problem?
chilly-ocean-42598
10/04/2024, 5:50 PMor @creamy-pencil-82913 can you pls help?
chilly-ocean-42598
10/04/2024, 6:01 PMalso am working behind a firewall
chilly-ocean-42598
10/04/2024, 6:01 PMdo i need to do some custom settings for core-dns
chilly-ocean-42598
10/04/2024, 6:01 PM?
h
hundreds-evening-84071
10/04/2024, 6:23 PMDoes your pod contain IP of your core-dns service?
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kubectl exec --stdin --tty -n <namespace> <pod> -- cat /etc/resolv.confhundreds-evening-84071
10/04/2024, 6:24 PMthis should match your hosts resolv.conf
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kubectl exec --stdin --tty -n kube-system <coredns pod> -- cat /etc/resolv.confc
chilly-ocean-42598
10/04/2024, 6:29 PM Copy code
kubectl exec --stdin --tty -n kube-system coredns-7b98449c4-fndcc -- cat /etc/resolv.conf
error: Internal error occurred: Internal error occurred: error executing command in container: failed to exec in container: failed to start exec "b3f5b030f2a9fcc5f88774502671d9167ecba045cfbf1607a9745b5969d52f08": OCI runtime exec failed: exec failed: unable to start container process: exec: "cat": executable file not found in $PATH: unknownchilly-ocean-42598
10/04/2024, 6:29 PMseems cat doesnt work inside cordns pod
chilly-ocean-42598
10/04/2024, 6:40 PMbtw do you know if service/cluster-cidr matters?
chilly-ocean-42598
10/04/2024, 6:54 PMi am using the default ones
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Cluster CIDR
IPv4/IPv6 network CIDRs to use for pod IPs (default: 10.42.0.0/16).
Service CIDR
IPv4/IPv6 network CIDRs to use for service IPs (default: 10.43.0.0/16).3 Views