Tag: IP address

List of the basic DNS record types

Dо you want to learn more about the different records? If yes, you are in the right place. Here you can find the list of the most popular DNS record types.

1. SOA record

The Start Of Authority record, or SOA record for short, is the first on our list. It is the one that must be comprehended. Why? It represents the beginning of the Authoritative DNS zone. This DNS record contains a wealth of data for the DNS zone. If you want your network to run smoothly and without errors, you’ll need this DNS record. It sends all requests to the principal DNS server. In addition, the SOA record contains the information and contact information for the DNS administrator. A variety of parameters, such as the domain serial number, are also included. It’s worth noting that each DNS zone should have just one SOA record.

How many DNS record types are there?

2. А record

Any DNS list must include the A DNS record. It’s perhaps the most well-known record format. The A record is used to direct or point a hostname to its IP address. When talking about A record, the address is IPv4 (32-bit) (32-bit). A newer AAAA record type supports IPv6 addresses (128-bit) (128-bit).

As a result, your site’s A record will include the host (extranewspapers.co.uk), as well as the host’s location (89.32.146.196), type (A), and TTL (time to live). It’s the most often utilized DNS record.

3. PTR record

The PTR record is another crucial type, often known as a Pointer record. It is used for backchecks and performs the reverse of the A record. It connects a hostname to an IP address (IPv4 or IPv6). It’s required because the rest of the servers in the globe may request proof that an IP address corresponds to a hostname before accepting a service, communicating, or taking any other action. As a result, it is frequently utilized in the authentication of the host.

4. CNAME record

The CNAME record essentially displays the real domain name (canonical) for the domain or subdomain you’re looking for. This DNS record type is significant because it can be used for all your subdomains. They point to your domain name by adding a CNAME record for each of them. Additionally, you also don’t need to add any additional DNS records to your subdomains.

5. TXT record

We can’t omit the TXT (Abridged from text) DNS record. It is incredibly adaptable. It provides information to sources outside the domain in text format. The SPF record is a type of TXT record. It is used by mail servers to determine whether a message is trustworthy and from the correct domain.

TXT records could be used for various types of verification and authentication. For example, increasing trust in your domain and emails is critical for your online reputation.

6. CAA record

The DNS administrator of a domain uses the Certification Authority Authorization record, or CAA record, to add and establish which Certificate Authorities (CAs) can publish SSL or TLS certificates for the domain.

The domain owner benefits from the CAA record since it gives them control over issuing certificates. Furthermore, the number of incorrectly issued certificates for that domain will be minimized. You can utilize the CAA record for your entire domain or only part of the subdomains. It all relies on your particular preferences and the setup you choose.

Conclusion 

Let’s review. You are now familiar with one of the most popular DNS record types. They are as follows: SOA, A, PTR, CNAME, TXT, and CAA records. So, it’s now your turn to make them real in your Domain Name System. Good luck!

What is IPv4?

The Internet is a massive kingdom. With the number of networks and the millions of devices that daily get connected, chaos could be the king ruling it. But an order is required to be efficient, and creators knew it. That’s why they developed protocols like the IP.

What is IP? 

Internet protocol (IP) is a group of communication rules for controlling the format of all the data sent through local networks or the Internet. 

The things that most people know about it are the IP addresses.

IP establishes the most convenient structures for packets to transport the data until they are delivered. It also involves different ways of addressing. And it routes datagrams across networks. The delivery of data packets from a source to its destination relies on IP addresses. 

The Internet has to know who is talking with. Who requests something and for who an answer is: servers, routers, websites, computers, smartphones, Internet of Things (IoT), etc. IP addresses help to identify and to make accessible machines, devices involved in a specific communication. That is how the exchange of data is possible.

What is IPv4?

Internet protocol version 4 (IPv4) is a widely used version of the IP. It is not the newest but still it is very popular. Through IPv4 addresses, identification of devices on networks is possible. Their structure is 4 numbers between 0 to 254, separated by dots, just like this one: 132.95.251.16. IPv4 uses a 32-bit address space. 

IPv4 is the result of the TCP/IP improvement. It was used for the first time in 1982 by SATNET, and in 1983, by ARPANET.

It is a connectionless protocol, meaning that messages can be sent without a previous arrangement between two endpoints on a network. One device sends data to another without checking if the recipient is available and with the conditions for receiving the data. 

IPv4 works on a best-effort delivery model. It is not part of its mission to guarantee the proper delivery. It is neither responsible for avoiding duplicate delivery, securing the order, nor protecting data integrity. It needs a teammate, another protocol to be in charge of such tasks, like the popular TCP (transmission control protocol).

Shortly, IPv4 only defines the format, communicates, addresses, and routes data.

This functionality makes it an essential resource for different interconnecting networks and for transmitting data from sources to their destinations. First, the data’s format is checked. If it’s too big, it is cut in parts for better transmission. Then these datagrams travel from an Internet module to another to reach the destination.

Advantages of IPv4.

  • IPv4 is four decades old. Time enough for improving it and guarantee systems support. Nowadays, it is not an issue for systems to handle this version. IPv6 means attractive upgrades but still has a long way to be as supported as IPv4.
  • IPv4’s prefixes are simple. This is convenient for networks’ topology, physical and logical. They fit easier.
  • IPv4 addresses are easier to type manually if needed. They are shorter than IPv6 ones—fewer possibilities of human mistakes.

Disadvantages of IPv4.

  • There are not many IPv4 addresses available anymore. There are millions of connected devices in the world, and each needs a unique IP address to connect successfully. Currently, we are already in the transition to the latest Internet protocol, version 6 (IPv6). 
  • IPv4 header is limited to 60 bytes. No more parameters can be added.
  • IPv4 is well supported by all systems. Many people prefer it. This increases the price of the available IPv4. 
  • IPv4 does not originally support Internet protocol security (IPsec). The protocol to authenticate and encrypt data packets for securing them. You can configure it, but it’s not an easy process.

Conclusion.

IPv4 is the past, and IPv6 is the future. Slowly we are going to start saying goodbye to the old one and welcome the new. 

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