17 net.dns.get 的返回值

概述

本节提供了 net.dns.get Zabbix agent 2 监控项 的返回值详细信息。

详情

该监控项的输出是一个object，其中包含基于监控项键中提供的参数的DNS记录信息。

例如，net.dns.get[,example.com] 监控项可能返回以下被拒绝query的JSON数据：

{
    "flags": [
        "RA"
    ],
    "query_time": "0.019030",
    "question_section": [
        {
            "qclass": "IN",
            "qname": "example.com.",
            "qtype": "SOA"
        }
    ],
    "response_code": "REFUSED",
    "zbx_error_code": 0
}

通过指定DNS服务器的IP地址，net.dns.get[192.0.2.0,example.com] 监控项可能返回以下JSON数据：

{
    "answer_section": [
        {
            "class": "IN",
            "name": "example.com.",
            "rdata": {
                "expire": 1209600,
                "mbox": "noc.dns.example.org.",
                "minttl": 3600,
                "ns": "ns.example.org.",
                "refresh": 7200,
                "retry": 3600,
                "serial": 2022091378
            },
            "rdlength": 44,
            "ttl": 1205,
            "type": "SOA"
        }
    ],
    "flags": [
        "RA"
    ],
    "query_time": "0.029556",
    "question_section": [
        {
            "qclass": "IN",
            "qname": "example.com.",
            "qtype": "SOA"
        }
    ],
    "response_code": "NOERROR",
    "zbx_error_code": 0
}

如果存在连接问题，net.dns.get[192.0.2.0,example.com] 监控项可能返回错误：

{
    "zbx_error_code": -1,
    "zbx_error_msg": "Communication error: read udp 192.0.2.0:12345->192.0.2.0:53: i/o timeout"
}

可能出现以下类型的错误代码：

场景 "zbx_error_code" "zbx_error_msg"
无错误且已接收并解析DNS响应。 0
DNS服务不可用。 -1 "通信错误"
JSON解析过程中发生错误 -2 "收到意外响应"

使用附加参数时，net.dns.get[192.0.2.0,example.com,ANY,5,5,tcp,"cdflag,rdflag,dnssec,nsid,edns0,aaflag,adflag"] 监控项可能返回以下JSON数据：

{
    "additional_section": [
        {
            "extended_rcode": 32768,
            "name": ".",
            "rdata": {
                "options": [
                {
                    "code": 0,
                    "nsid": "67 70 64 6e 73 2d 6c 70 70"
                }
            ]
        },
            "rdlength": 13,
            "type": "OPT",
            "udp_payload": 512
        }
    ],
    "answer_section": [
        {
            "class": "IN",
            "name": "example.com.",
            "rdata": {
                "a": "192.0.2.0"
            },
            "rdlength": 4,
            "ttl": 19308,
            "type": "A"
        },
        {
            "class": "IN",
            "name": "example.com.",
            "rdata": {
                "algorithm": 13,
                "expiration": 1704715951,
                "inception": 1702910624,
                "key_tag": 21021,
                "labels": 2,
                "orig_ttl": 86400,
                "signature": "HVBOBcJJQy0S08J3f8kviPj8UkEUj7wmyiMyQqPSWgQIY9SCEJ5plq6KuxJmtAek1txZWXDo+6tpIC6DIVBnuw==",
                "signer_name": "example.com.",
                "type_covered": "A"
            },
            "rdlength": 95,
            "ttl": 19308,
            "type": "RRSIG"
        }
    ],
    "flags": [
        "RD",
        "RA",
        "AD",
        "CD"
    ],
    "query_time": "0.058221",
    "question_section": [
        {
            "qclass": "IN",
            "qname": "example.com.",
            "qtype": "ANY"
        }
    ],
    "response_code": "NOERROR",
    "zbx_error_code": 0
}

另请参阅

有关 DNS 记录的详细信息，请参见：