2019年8月19日 · DNS is an insecure system 'per se', because the information travels in plain, unencrypted text. As is well known, DNS requests pass through a hierarchical system that includes different servers: "recursive resolvers", "root nameservers", "TLD nameservers" and "authoritative nameservers".

2014年11月1日 · Many DNS providers implement custom (read: fake) DNS record types to try and address this shortcoming. Behind the scenes, these fake records implement custom behavior in that company's software using a combination of synthesized A records and webserver redirection to accomplish your desired goal.

2010年9月8日 · Yes one of the feature of DNS servers is local caching of frequently requested queries, too often bypassing the specified ttl. You can certainly run you own dns, no problem. But the root servers, and top level domain servers, you will have to ask uncle sam. Logging all dns requests is possible, but would be insane.

DNS root zone = . DNS root domain = (nameless) However, after reading the Wikipedia article, I'm not so sure: A domain name consists of one or more parts, technically called labels, that are conventionally concatenated, and delimited by dots, such as example.com. So this would lead me to believe: DNS root zone = . DNS root domain = .

2022年3月2日 · There is one root zone maintainer who generates it. Every root server maintainer grabs it with DNS zone transfer and replicates it internally with a site-specific mechanism. Those root servers can be found shipped with DNS software, or in the root-servers.net zone here or here. Top level domains change relatively infrequently.

2010年3月26日 · Root are the top ones. We're talking ICANN, or some other agency at the top level of the internet. There are servers that are responsible for directing your queries based on the TLD (e.g. ".com" goes to x.x.x.x, ".org" goes to y.y.y.y), and then those point you to specific authoritative name servers (foo.com).

Simple. The root nameserver(s)= server the "." domain. The TLD servers serve the top level domain, DIRECTLY BELOW THE ".". So, for example, ".de" is the german country domain. DNS servers managed by DE-NIC. The "." root name servers know the dns servers for the .DE domain and tie it all together.

To remove the objects from the DNS server properties, launch DNS Manager, right click on the server and select properties. Click on the root hints tab, and remove the servers. A much better way to forgo the use of root hints is to just uncheck the Use root hints if no forwarders are available check box on the forwarders tab and use forwarders ...

2012年4月3日 · All root servers store the same DNS database. A through M is total of 13 nameservers, but to be exact each this "nameserver" is not actually a server , but it is an IP address. For most of root servers, that IP address corresponds not to single machine, but it is a so-called anycast address - address which can be routed to any of several ...

The '@' symbol is something that the godaddy domain interface uses to mean "this root domain', but that may have been specefic to that interface and has no meaning here. Before I had a 'www' entry in the A rcords and it worked in the sense that I could ping 'www.domain.com' and it returned a response, but pinging the root domain 'domain.com ...