DNS stands for Domain Name System. It is a system that translates domain names into IP addresses. DNS is a crucial component of the internet infrastructure and is essential for accessing websites, sending emails, and other internet-related activities. DNS is extremely important for gaming. A good DNS server helps to reduce latency and improve connection …
Linux
The primary purpose of DNS cache is to store the location of web servers that we have recently accessed. The next time when we type in that website address, the browser will look for its DNS information in the local cache first and be able to find the site more quickly. If the location of …
DNS is short for Domain Name System. It is simply a database that links meaningful names (known as hostnames), such as www.howtouselinux.com, to a specific IP address, such as 185.230.63.171. Each device connected to the Internet has a unique IP address. With the system of DNS, we don’t have to memorize IP addresses. DNS records …
EDNS stands for Extended DNS. EDNS gives us a mechanism to send DNS data in larger packets over UDP. The most popular implementation of EDNS is DNSSEC. History of EDNS Traditional DNS responses are typically small in size (less than 512 bytes) and fit nicely into a small UDP packet. Sometimes we have to transfer …
A TXT record (short for text record) is a type of resource record in DNS. It is used to store descriptive text for the domain name. This type of record can be used to provide additional information about your domain, such as SPF records or verification codes. It is also commonly used by email servers …
Linux find command is a powerful tool that can be used to locate and manage files and directories based on a wide range of search criteria. This means that we can provide it with a set of directories (or files) or filters, and it will apply appropriate actions to them. This post covers 20 advanced …
DNS port is confusing for many people. In this article, we’ll describe how DNS works, and what DNS port numbers are used for DNS protocol. Port Usage TCP port 53: Large DNS responses (TCP is used when the DNS response exceeds the maximum size that can be accommodated in a single UDP packet.) DNS zone …
TCP is defined as a connection-oriented and reliable protocol. We will check out how TCP connection works in this article. How TCP Connection Works? TCP allows for the transmission of information in both directions. This means that computer systems that communicate over TCP can send and receive data at the same time, similar to a …
TCP vs UDP – Acronym TCP: Transmission Control Protocol UDP: User Datagram Protocol TCP vs UDP – Connection TCP: Is a connection-oriented protocol. This means the system is able to send and receive data. UDP: Is a connection-less protocol. This means the service can only send packets. TCP vs UDP – Protocols TCP: HTTP, …
TCP Sequence Number is a 4-byte field in the TCP header that indicates the first byte of the outgoing segment. It helps to keep track of how much data has been transferred and received. The TCP Sequence Number field is always set, even when there is no data in the segment. For example, the sequence …