Monitor DNS (object)¶
Additional Monitor class properties available when monitorType = dns
Properties (* = required):
name | type(s) | default | allowed values | description |
---|---|---|---|---|
/*/ | ||||
acceptRCODE | string | “no-error” | “anything”, “no-error” | Specifies the RCODE required in the response for an up status |
adaptive | boolean | false | true, false | If true, use adaptive probe timing |
adaptiveDivergenceMilliseconds | integer | 500 | 1 - 10000 | Probe fails if response latency exceeds mean by this number of milliseconds |
adaptiveDivergencePercentage | integer | 100 | 1 - 500 | Probe fails if response latency exceeds mean by this percentage |
adaptiveDivergenceType | string | “relative” | “absolute”, “relative” | Adaptive divergence, ‘absolute’ selects milliseconds, ‘relative’ (default) selects percentage |
adaptiveLimitMilliseconds | integer | 1000 | 1 - 10000 | Probe fails if response latency exceeds this number of milliseconds |
adaptiveWindow | integer | 180 | 60 - 1800 | Time window over which the system samples latency (seconds) |
answerContains | string | “query-type” | “any-type”, “anything”, “query-type” | Specifies the type of DNS query that the monitor sends |
class | string | “Monitor” | ||
interval | integer | 5 | 0 - 3600 | Poll interval (seconds) |
label | string | “^[^x00-x1fx22#&*<>?x5b-x5d`x7f]*$” | Optional friendly name for this object. Allows 0-64 chars, excluding a few likely to cause trouble with string searching, JS, TCL, or HTML | |
monitorType | string | Specifies the type of monitor | ||
queryName* | string | Specifies a query name for the monitor to use in a DNS query | ||
queryType | string | “a” | “a”, “aaaa” | Specifies the type of DNS query that the monitor sends. |
receive | string | IP address that the monitor uses from the resource records sections of the DNS response | ||
remark | string | “^[^x00-x1fx22x5cx7f]*$” | Arbitrary (brief) text pertaining to this object. Allows 0-64 chars, excluding only control characters, double-quote, and backslash. This is permissive enough that you should worry about XSS attacks | |
reverse | boolean | false | true, false | If true, mark node down upon receipt of ‘receive’ string |
targetAddress | string | “” | “f5ip” formatted string | IP address monitor should probe; if empty (default) then pool member address |
targetPort | integer | 0 | 0 - 65535 | L4 port (if any) monitor should probe; if 0 (default) then pool member port |
timeout | integer | 16 | 0 - 900 | Time limit for node to respond (seconds) |
timeUntilUp | integer | 0 | 0 - 1800 | Delay between successful probe and sending traffic to node (seconds) |
transparent | boolean | false | true, false | If true, treat pool member address as gateway to server (node) (default false) |
upInterval | integer | 0 | 0 - 3600 | Poll interval when service is already up (seconds) |