Pierre-Olivier Mercier
749ba428a7
Generic SRV records checker for happyDomain.
For each SRV record attached to an svcs.UnknownSRV service, the checker
resolves every target and probes reachability:
- DNS resolution (A/AAAA), CNAME detection (RFC 2782 violation),
null-target detection (RFC 2782 "service explicitly unavailable")
- TCP connect to target:port for _tcp SRVs
- UDP probe for _udp SRVs, using ICMP port-unreachable detection
The checker also publishes TLS endpoints (host, port, SNI) for every
SRV target hitting a well-known direct-TLS port (443, 465, 636, 853,
993, 995, 5061, 5223, …) via the EndpointDiscoverer SDK interface, so
a downstream TLS checker can pick them up.
The HTML report groups records as cards and surfaces the most common
failure scenarios (DNS failure, CNAME target, TCP unreachable,
null-target) at the top with remediation guidance.
24 lines
500 B
Go
24 lines
500 B
Go
// Command checker-srv is the standalone binary for the SRV checker.
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package main
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import (
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"flag"
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"log"
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sdk "git.happydns.org/checker-sdk-go/checker"
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srv "git.happydns.org/checker-srv/checker"
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)
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var Version = "custom-build"
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var listenAddr = flag.String("listen", ":8080", "HTTP listen address")
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func main() {
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flag.Parse()
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srv.Version = Version
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server := sdk.NewServer(srv.Provider())
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if err := server.ListenAndServe(*listenAddr); err != nil {
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log.Fatalf("server error: %v", err)
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}
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}
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