What did you expect to see?

I'm expecting to be able to filter out the requests from blackbox exporter in my access logs.
So, please, add a user agent header that container the "blackbox exporter" string somewhere.

What did you see instead?

I see User-Agent: Go-http-client/1.1
Not easy to filter in the access logs...

Pinger.New() runs connectICMP() which runs icmp.ListenPacket(network, address) using static value "ip4:icmp" as network. Per icmp.ListenPacket() def, this only allows usage of privileged endpoints.

ListenPacket listens for incoming ICMP packets addressed to address. See net.Dial for the syntax of address.

For non-privileged datagram-oriented ICMP endpoints, network must be "udp4" or "u