dnsttl0

SettingaDNSrecord'sTTLvaluetozero,meansthatapplicationsandDNSserversmustnotcachetherecord.WhenaDNSrecordisstoredinthecacheofaDNS ...,2023年3月24日—SetyourDNSTTLminimumvaluetoanumberlargerthan0.NeversetyourDNSTTLto0.Thenumber0isnotdefinedinthestandard,andit ...,2018年9月3日—TTL設定的時間若過短，會增加網站主機的負擔，會收到更多Query，讓主機處理器時間變慢.例如你把TTL設定為0時，你的DNSServer可能就...

參考資訊如下
Definition

Setting a DNS record's TTL value to zero, means that applications and DNS servers must not cache the record. When a DNS record is stored in the cache of a DNS ...

DNS TTL best practices

2023年3月24日 — Set your DNS TTL minimum value to a number larger than 0. Never set your DNS TTL to 0. The number 0 is not defined in the standard, and it ...

DNS TTL 選擇時間長短，差別在哪

2018年9月3日 — TTL設定的時間若過短，會增加網站主機的負擔，會收到更多Query，讓主機處理器時間變慢. 例如你把TTL設定為0時，你的DNS Server可能就會被操到爆，當 ...

DNS with 0 TTL

2021年12月11日 — Is it possible to configure DNS records with 0 TTL? I need to setup round robin DNS for load balancing of 50 servers and 60 seconds as DNS ...

K56428353

2023年5月5日 — Description Queries return a TTL of 0 when wide IPs and pools are disabled, even though their primary, alternate, and fallback load ...

Performance Analysis of DNS with TTL Value 0 as Location ...

由 Y Wu 著作 · 2007 · 被引用 50 次 — In this paper we are interested in the impact of TTL value 0 on DNS system performance. Based on the modeling of DNS caching behavior, we have a quantitative ...

Stop using ridiculously low DNS TTLs

2019年11月12日 — Let's focus on the 0-3,600 range: Figure 3 – TTL distribution from 0 to 3,600 seconds. And where most TTLs sit between 0 and 15 minutes:.

What happens in a recursive dns query, if ttl = 0?

2012年12月17日 — In name resolution (current version of bind), what happens when a recursive answer reaches ttl 0 on the return trip?

[DNS] response always has zero ttl · Issue #7833

2021年12月14日 — Using the workaround in #6977 to stop a manually created /etc/resolv.conf from being deleted everytime WSL VM restarts.

存活時間

當其存活次數為0時，路由器便會取消該封包 ... TTL封包以告知躍點數超限。其設計目的是防止封包因不正確的路由表等原因造成的無限循環而無法送達及耗盡網路資源。 DNS.