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Connection Refused Error Upon Restarting the Netmaker Server
Connection Refused Error Upon Restarting the Netmaker Server

Can't pull the server/UI images from docker.

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Written by Dennis Tadlip
Updated over a week ago

Issue:

I've had CoreDNS enabled as a host and from time to time I get an error message when I try to restart the server with this command:

docker-compose down && docker-compose up -d.

The error message is:

ERROR: Get "https://registry-1.docker.io/v2/": dial tcp: lookup registry-1.docker.io on [::1]:53: read udp [::1]:41083->[::1]:53: read: connection refused.

Resolution/Workaround:

This is happening because there is no domain name resolver running in your server after taking down CoreDNS via docker-compose down. Note that systemd-resolved was disabled when you set CoreDNS as a host (done to prevent port conflict). Sometimes you can get away with it because of some lingering nameserver cache.


Please follow these steps in order to resolve the issue:

  1. temporarily start systemd-resolved:
    ​sudo systemctl start systemd-resolved.service

  2. start the netmaker server:
    ​docker-compose up -d

  3. stop and disable the systemd-resolved, again:
    ​sudo systemctl stop systemd-resolved.service
    ​sudo systemctl disable systemd-resolved.service

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