Logs for the probe:
ts=2025-12-25T00:06:42.859511257Z caller=main.go:190 module=icmp target=nagios.bulkserver.jp level=info msg="Beginning probe" probe=icmp timeout_seconds=9.5
ts=2025-12-25T00:06:42.859597037Z caller=icmp.go:91 module=icmp target=nagios.bulkserver.jp level=info msg="Resolving target address" target=nagios.bulkserver.jp ip_protocol=ip4
ts=2025-12-25T00:06:42.97367894Z caller=icmp.go:91 module=icmp target=nagios.bulkserver.jp level=info msg="Resolved target address" target=nagios.bulkserver.jp ip=103.250.73.142
ts=2025-12-25T00:06:42.97371971Z caller=handler.go:119 module=icmp target=nagios.bulkserver.jp level=info msg="Creating socket"
ts=2025-12-25T00:06:42.97375265Z caller=handler.go:119 module=icmp target=nagios.bulkserver.jp level=debug msg="Unable to do unprivileged listen on socket, will attempt privileged" err="socket: permission denied"
ts=2025-12-25T00:06:42.9738017Z caller=handler.go:119 module=icmp target=nagios.bulkserver.jp level=info msg="Creating ICMP packet" seq=22947 id=314
ts=2025-12-25T00:06:42.97382597Z caller=handler.go:119 module=icmp target=nagios.bulkserver.jp level=info msg="Writing out packet"
ts=2025-12-25T00:06:42.97383231Z caller=handler.go:119 module=icmp target=nagios.bulkserver.jp level=debug msg="Setting TTL (IPv4 unprivileged)" ttl=30
ts=2025-12-25T00:06:42.97389062Z caller=handler.go:119 module=icmp target=nagios.bulkserver.jp level=info msg="Waiting for reply packets"
ts=2025-12-25T00:06:52.360694971Z caller=handler.go:119 module=icmp target=nagios.bulkserver.jp level=debug msg="Cannot get TTL from the received packet. 'probe_icmp_reply_hop_limit' will be missing."
ts=2025-12-25T00:06:52.360787161Z caller=handler.go:119 module=icmp target=nagios.bulkserver.jp level=warn msg="Timeout reading from socket" err="read ip 0.0.0.0: raw-read ip4 0.0.0.0: i/o timeout"
ts=2025-12-25T00:06:52.360819001Z caller=main.go:190 module=icmp target=nagios.bulkserver.jp level=error msg="Probe failed" duration_seconds=9.500989603



Metrics that would have been returned:
# 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 0.114096013
# HELP probe_duration_seconds Returns how long the probe took to complete in seconds
# TYPE probe_duration_seconds gauge
probe_duration_seconds 9.500989603
# HELP probe_icmp_duration_seconds Duration of icmp request by phase
# TYPE probe_icmp_duration_seconds gauge
probe_icmp_duration_seconds{phase="resolve"} 0.114096013
probe_icmp_duration_seconds{phase="rtt"} 0
probe_icmp_duration_seconds{phase="setup"} 0.0001064
# 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 5.35778411e+08
# 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: icmp
timeout: 10s
http:
  ip_protocol_fallback: true
  follow_redirects: true
  enable_http2: true
tcp:
  ip_protocol_fallback: true
icmp:
  preferred_ip_protocol: ip4
  ip_protocol_fallback: true
  ttl: 30
dns:
  ip_protocol_fallback: true
  recursion_desired: true