ssh: dns not resolving but IP works

[n3gwg]

Describe the bug

Example(s) that fail:

• name: "cisco switch (ssh)"
  group: network hardware
  url: "ssh://switch1.lan.mydomain.com"
  interval: 15m
  conditions:
  • "[CONNECTED] == true"

Example(s) that work:

• name: "cisco switch (ssh)"
  group: network hardware
  url: "ssh://10.1.1.1"
  interval: 15m
  conditions:

  • "[CONNECTED] == true"

• name: "cisco switch (ssh)"
  group: network hardware
  url: "icmp://switch1.lan.mydomain.com"
  interval: 15m
  conditions:

  • "[STATUS] == any(0, 200)"

Yet, for monitoring "https://" or "icmp://" DNS resolution seems to function absent any appreciable anomalies.

[n3gwg]

Adding my local DNS to the list of DNS servers in my podman compose file seemed to resolve this issue. However, I am still not sure why absent the DNS server being specified in my podman compose file originally the other sorts of testing (icmp, http, and https) seemed to work.