Icinga2 http check failure

莫名奇妙搞了很久的設定

object Host Dev {
  import "generic-host"
  address = "dev.examplexxx.com"
  vars.http_vhosts["http"] = {
+   http_vhost = "dev.examplexxx.com"
    http_verbose = true
    http_port = 443
    http_uri = "/login"
    http_sni = true
    http_ssl_force_tlsv1_2_or_higher = true
  }
-  check_command = "hostalive"
+  check_command = "hostalive4"
}

1. 可能是我 server 有經過 cloudfront 的關係
   不加 http_vhost 會出問題
   Error message

CRITICAL - Cannot make SSL connection.
23112094376384:error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure:../ssl/record/rec_layer_s3.c:1528:SSL alert number 40
SSL initialized

2. 沒有 ipv6 要改用 hostalive4
   Error message

CRITICAL - Network Unreachable (dev.examplexxx.com)