...资源记录ZONE file的资源记录(RR:Resource Record)的格式: name [TTL] IN rr_type value 注意: (1)TTL可从全局继承 (2) @可用于引用当前区域的名字...(3) 同一个名字可以通过多条记录定义多个不同的值;此时DNS服务器会以轮询方式响应 (4) 同一个值也可能有多个不同的定义名字;通过多个不同的名字...
在域名解析(DNS)中,TTL(Time to Live)是一个重要的概念,它表示DNS记录在缓存中的存活时间。每当客户端查询一个域名时,DNS服务器会返回相应的DNS记录,并附带一个TTL值。这个值告诉客户端和其他中间DNS服务器,在缓存这个记录多长时间后应该再次查询DNS服务器以获取最新的信息。 TTL的基础概念 定义:TTL是一个时间值...
DnsRecordSet.DefinitionStages.WithPtrRecordTargetDomainNameOrAttachable DnsRecordSet.DefinitionStages.WithSrvRecordEntry DnsRecordSet.DefinitionStages.WithSrvRecordEntryOrAttachable DnsRecordSet.DefinitionStages.WithTtl DnsRecordSet.DefinitionStages.WithTxtRecordTextValue DnsRecordSet.DefinitionStages.WithTxtRecord...
Is anyone aware if there are any limitations in dnsmasq in caching DNS with more than 5 minutes of ttl value. Additionally is it possible to have dnsmasq only expire DNS records when there are no requests for the DNS record for a period of 5 minutes (LRU kind of cache). Shar...
WithPtrRecordTargetDomainNameOrAttachable DnsRecordSet.DefinitionStages.WithSrvRecordEntry DnsRecordSet.DefinitionStages.WithSrvRecordEntryOrAttachable DnsRecordSet.DefinitionStages.WithTtl DnsRecordSet.DefinitionStages.WithTxtRecordTextValue DnsRecordSet.DefinitionStages.WithTxtRecordTextValueOrAttachable DnsR...
您可以使用 httpdns.volcengineapi.com 作为请求域名,也可以向 HTTPDNS 服务端 IP 地址发送直连请求。直连请求节省了 HTTPDNS 服务端域名的DNS解析耗时。您可以... 并且为应用单独配置自定义解析。参见 应用管理 了解详细信息。 响应正文参数名称 参数类型 参数说明 host String 请求解析的域名。ttlInteger解析结果的...
ms-DS-Claim-Value-Type MS-DS-Consistency-Child-Count MS-DS-Consistency-Guid MS-DS-Creator-SID ms-DS-Date-Time ms-DS-Default-Quota ms-DS-Deleted-Object-Lifetime ms-DS-Disable-For-Instances ms-DS-Disable-For-Instances-BL ms-DS-DnsRootAlias ms-DS-Egress-Claims-Transformation-Policy ms-DS-...
I use nslookup in debug mode (set debug) to query the DNS server and see published TTL values. When I do the change, the SOA record is correctly updated (I see it with the new value for the Default TTL field and its own TTL is also correct) but when I query other records, the ...
TTl值确定操作系统（TTl value determines the operating system）WINDOWS 98 TTL: 32 2.2 X / 2.4 X LINU TTL: 64 WINDOWS NT / 2000 / XP TTL: 2000 UNIX/BSD TTL: 255 Because in the process of packet transmission, routing, every TTL value minus 1 automatically, so it is an approximate ...
. Even in cases where this is not accurate, one would hope the server is receiving routine security updates that force a process restart. Speaking as the operator of several large clusters I do not find it likely that a MSO would set this to a larger value on purpose: it only serve...