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Anonymous users2024-02-15What does DNS mean and what is it for.
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Anonymous users2024-02-14The DNS port is 53 UDP and is used for DNS resolution.
Generally, domain name providers provide DNS servers that use UDP53. Win's built-in DNS is used, and it is also an intelligent resolution software, which builds a DNS server and provides domain name resolution, and also does UDP53 port. If the port is not open or is occupied by other content, the domain name resolution will not be normal.
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Anonymous users2024-02-13If you're using a router to surf the Internet, you'll be able to see it when you enter the router.
Because the DNS of each network operator is different!
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Anonymous users2024-02-12DNS stands for: Domain Name Server.
domain
nameserver)。Domain name and IP address on the Internet.
Although the domain name is easy for people to remember, the machines can only know each other's IP addresses, and the conversion between them is called domain name resolution.
Domain name resolution needs to be completed by a dedicated domain name resolution server, and DNS is the server that performs domain name resolution.
A port is actually a team, and the operating system assigns different teams and packets to each process.
The destination port is pushed into the corresponding queue and waits to be retrieved by the process, which may overflow in very special cases, but the operating system allows each process to specify and resize its own fleet.
Not only does the process that receives the packet need to open its own port, but the process that sends the packet also needs to open the port, so that the packet will be marked with a source port so that the receiver can smoothly return the packet to this port.
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Anonymous users2024-02-11DNS, (Domain Name System), a domain name resolution system that is used to name computers and network services organized into a hierarchy of domains. Find computers and services by user-friendly names. To put it simply, we can convert the IP address into a domain name, which is convenient for us to use memory, such as converting to, or reverse resolving the domain name back to the original IP address.
A port can be said to be the channel that is needed to open some services. Some services use a fixed port, and you can also bind a port to a service, as explained above.
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Anonymous users2024-02-10What does DNS mean and what is it for.
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