Allow raw ip addresses

2026-08-20 09:07:34 +02:00
parent 8dcea2e0e6
commit 200186e561
5 changed files with 82 additions and 15 deletions
@@ -82,6 +82,13 @@ For each check:
 At no point is the container's own (router-provided) DNS resolver
 consulted for endpoint hostnames.

+**Literal IPs in `host`:** if `host` is already an IPv4/IPv6 address (e.g.
+`192.168.0.2`), DNS resolution is skipped entirely — the monitor connects
+to it directly, and `dns_server` is optional/ignored for that endpoint.
+(Without this, a literal IP would be sent as a DNS query to whatever
+`dns_server` you configured, which returns NXDOMAIN — it is not a valid
+hostname — and the check would always fail.)
+
 ## What gets written to InfluxDB

 Measurement `uptime_check`, one point per endpoint per check: