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{ "id": "dns_lookup", "schema": { "type": "object", "title": "", "additionalProperties": true, "properties": { "dnsLookupFields": { "title": "DNS lookup fields", "description": "List of field names on which to perform DNS lookup", "type": "array", "items": { "type": "object", "properties": { "inFieldName": { "type": "string", "title": "Lookup field name" }, "resourceRecordType": { "title": "Resource record type", "description": "The DNS record type (RR) to return. Defaults to 'A'.", "type": "string", "enum": [ "A", "AAAA", "ANY", "CNAME", "MX", "NAPTR", "NS", "PTR", "SOA", "SRV", "TXT" ], "enumNames": [ "A", "AAAA", "ANY", "CNAME", "MX", "NAPTR", "NS", "PTR", "SOA", "SRV", "TXT" ], "default": "A" }, "outFieldName": { "type": "string", "title": "Output field name", "description": "Name of field to add lookup results to. Leave blank to overwrite the lookup field." } } } }, "reverseLookupFields": { "title": "Reverse DNS lookup fields", "description": "List of field names on which to perform reverse DNS lookup", "type": "array", "items": { "type": "object", "properties": { "inFieldName": { "type": "string", "title": "Lookup field name", "description": "Name of the field containing the IP to look up. If the field value is not in IPv4 or IPv6 format, the lookup is skipped." }, "outFieldName": { "type": "string", "title": "Output field name", "description": "Name of field to add the resolved domain to. Leave blank to overwrite the lookup field." } } } }, "dnsServers": { "title": "DNS server overrides", "description": "IPs, in RFC 5952 format, of the DNS servers to use for resolution. Examples: IPv4 1.1.1.1, 4.2.2.2:53, or IPv6 [2001:4860:4860::8888], [2001:4860:4860::8888]:1053. If not specified, system's DNS will be used.", "type": "array", "items": { "type": "string" } }, "cacheTTL": { "type": "number", "title": "Cache time to live (minutes)", "description": "How frequently to expire and refetch DNS cache. Use 0 to disable.", "default": 30 }, "maxCacheSize": { "type": "number", "title": "Cache size limit", "default": 5000, "description": "The maximum number of DNS resolutions to be cached locally. Leave at default unless you understand the implications of changing.", "maximum": 100000 }, "useResolvConf": { "title": "Use /etc/resolv.conf", "description": "Attempt to resolve DNS short names using the search or domain directive from /etc/resolv.conf", "type": "boolean", "default": false }, "lookupFallback": { "title": "Fall back to DNS.lookup()", "description": "If unable to resolve a DNS short name, make a DNS.lookup() call to resolve it. Caution: This might degrade performance in unrelated areas of @{product}.", "type": "boolean", "default": false }, "domainOverrides": { "title": "Use search or domain fallbacks", "description": "Specify fallback values for the DNS resolver to use when it cannot resolve a DNS short name", "type": "array", "items": { "type": "string", "properties": { "domainOverride": { "type": "string", "title": "fallback" } } } }, "lookupFailLogLevel": { "title": "Log level for failed lookups", "type": "string", "enum": ["silly", "debug", "info", "warn", "error"], "enumNames": ["silly", "debug", "info", "warn", "error"], "default": "error" } } } }