DNS over TCP
We recently ran into a problem where a DNS query was failing because the response was too large. The maximum size of a DNS response that can be sent over UDP (User Datagram Protocol) is 512 bytes. This is because the...
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We recently ran into a problem where a DNS query was failing because the response was too large. The maximum size of a DNS response that can be sent over UDP (User Datagram Protocol) is 512 bytes. This is because the...
There are several types of DNS (Domain Name System) records, each serving a different purpose. Here are some of the most common types: A (Address) Record: This record maps a domain name to an IPv4 address. AAAA (IPv6...
CIDR (Classless Inter-Domain Routing) notation is a compact representation of an IP address and subnet mask. It is used to express the number of bits that make up the network portion of the IP address. CIDR notation is...
IPv4 (Internet Protocol version 4) and IPv6 (Internet Protocol version 6) are two different versions of the Internet Protocol used to identify devices on a network. Here are some of the key differences between IPv4 and...
rwhois (also known as Referral Whois) is a protocol used to obtain registration information about IP addresses and other Internet resources. It is a distributed database system that allows network administrators to...
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