Logs for the probe:
time=2026-04-30T15:51:01.810Z level=ERROR source=dns.go:273 msg="Error while sending a DNS query" module=dns_udp target=127.0.0.1 err="read udp4 127.0.0.1:35306->127.0.0.1:53: read: connection refused"
time=2026-04-30T15:51:01.810Z level=ERROR source=handler.go:130 msg="Probe failed" module=dns_udp target=127.0.0.1 duration_seconds=0.000711932



Metrics that would have been returned:
# HELP probe_dns_additional_rrs Returns number of entries in the additional resource record list
# TYPE probe_dns_additional_rrs gauge
probe_dns_additional_rrs 0
# HELP probe_dns_answer_rrs Returns number of entries in the answer resource record list
# TYPE probe_dns_answer_rrs gauge
probe_dns_answer_rrs 0
# HELP probe_dns_authority_rrs Returns number of entries in the authority resource record list
# TYPE probe_dns_authority_rrs gauge
probe_dns_authority_rrs 0
# HELP probe_dns_duration_seconds Duration of DNS request by phase
# TYPE probe_dns_duration_seconds gauge
probe_dns_duration_seconds{phase="connect"} 0.000147425
probe_dns_duration_seconds{phase="request"} 8.082e-05
probe_dns_duration_seconds{phase="resolve"} 6.403e-06
# HELP probe_dns_lookup_time_seconds Returns the time taken for probe dns lookup in seconds
# TYPE probe_dns_lookup_time_seconds gauge
probe_dns_lookup_time_seconds 6.403e-06
# HELP probe_dns_query_succeeded Displays whether or not the query was executed successfully
# TYPE probe_dns_query_succeeded gauge
probe_dns_query_succeeded 0
# HELP probe_duration_seconds Returns how long the probe took to complete in seconds
# TYPE probe_duration_seconds gauge
probe_duration_seconds 0.000711932
# HELP probe_ip_addr_hash Specifies the hash of IP address. It's useful to detect if the IP address changes.
# TYPE probe_ip_addr_hash gauge
probe_ip_addr_hash 3.668918509e+09
# HELP probe_ip_protocol Specifies whether probe ip protocol is IP4 or IP6
# TYPE probe_ip_protocol gauge
probe_ip_protocol 4
# HELP probe_success Displays whether or not the probe was a success
# TYPE probe_success gauge
probe_success 0



Module configuration:
prober: dns
timeout: 3s
http:
  ip_protocol_fallback: true
  follow_redirects: true
  enable_http2: true
tcp:
  ip_protocol_fallback: true
icmp:
  ip_protocol_fallback: true
  ttl: 64
dns:
  preferred_ip_protocol: ip4
  ip_protocol_fallback: true
  transport_protocol: udp
  query_name: example.com
  query_type: A
  recursion_desired: true
  validate_answer_rrs:
    fail_if_matches_regexp:
    - ^$