IPv6: Are we ready for it?

Internet Protocol version 6 or IPv6 is our main topic today. We will discuss its main purpose, structure, and why it is so important.

Internet Protocol – definition

The Internet protocol, or IP, is a set of rules for online communication. It determines the format of data packets, which is the most efficient framework for transporting data across networks. It’s also in charge of employing IP addresses to route and address data packets delivered to their destination.

What is the purpose of IPv6?

IPv6 (Internet Protocol Version 6) is a network layer protocol that enables communication and data transfer across the web. Internet Protocol Version 6 was created in 1998 with the primary intention of eventually replacing the IPv4 protocol. Despite this, the majority of organizations continue to use the earlier IPv4 standard. Since 2017, it has been an Internet Standard (IETF) to anticipate an increase in IPv6 usage in the near future.

What does it look like?

IPv6 addresses are made up of eight four-digit hexadecimal sequences. Colons are used to divide them altogether. In addition, each sequence represents 16 bits. The hexadecimal system includes sixteen characters, including the digits 0 through 9, as well as the letters “a,” “b,” “c,” “d,” “e,” and “f.”The following is an example for IPv6 address: 2008:5fe:7a5b:4025:1001:2013:5d6e:1a4f

Types of IPv6

IPv6 addresses come in various shapes and sizes, but it’s important to note that there are no broadcast addresses in Internet Protocol Version 6. Some of the most popular are as follows:

  • Unicast addresses – we use them to identify a single interface or individual node.
  • Anycast addresses – they define a group of interfaces, with a packet sent to an anycast address being routed to one of the group’s members.
  • Multicast – we use multicasts to send a single packet to multiple destinations simultaneously. As a result, all of the group’s interfaces receive a packet delivered to a multicast address.

Advantages of using IPv6

There are considerable benefits to implementing IPv6. The following are a few of them:

  • IP addresses are essential for domain name resolution if you own a network or a website. Perhaps you’re still using IPv4 and A DNS records to accomplish this. You will, however, sooner rather than later switch to IPv6 and AAAA.
  • To provide a variety of Internet services, such as web hosting, application hosting, etc.
  • For configuring network routing at work or at home. Older devices may not support the new Internet Protocol version 6. This may be the sole disadvantage.
  • IPv6 is compatible with the 5G Internet of the future. Now is the time to start planning for a smooth transition.

Conclusion

We’ll all be using IPv6 at some moment. So the sooner you realize the importance of Internet Protocol Version 6 and how to deploy it in your own networks, the better.

DNS record types: Popular examples

In the Domain Name System, there are different DNS record types. Their primary function is to supply information about the domain and its IP address. So, if you want to learn more about them, you are in the right place. In this article, we will consider one of the most popular record types.

DNS record – what does it mean?

But before we see the different types, let’s explain what a DNS record is. They are text instructions kept in zone files that allow domain names to be resolved to IP addresses. They’re lightweight and straightforward to update, and their size varies based on the query type. However, because PCs aren’t human, they have to rely on records to understand and decode text. That is, they convert the text file into numbers that machines can read.

DNS record types

We mentioned above that there are many different types of DNS records. Each of them is strictly individual and has its specific characteristics and purpose. And here are the most fundamental and necessary DNS records you need to know:

SOA record

Every DNS zone requires a Start of Authority record or SOA record for short. Its purpose is to display the authoritative DNS zone’s principal source. So, the SOA album is an absolute must-have. Your DNS network will not be able to function correctly without it. It specifies which DNS server is the primary (master). It contains contact information for the DNS administrator. In addition, the SOA record contains important DNS zone characteristics such as the domain’s serial number and refresh rate. It’s also worth noting that each DNS zone should only have one SOA record.

A record

The A (Address) record is probably the most common of all DNS record types. The explanation for this is simple: it serves an exact and vital role. The A record connects the domain name to the IP address it corresponds to (IPv4). Therefore, people will only remember domain names instead of IP addresses in this case.

AAAA record

The AAAA record does the same task as the A record, except for connecting a domain name to an IPv6 address. The sixth version adds a slew of new IP addresses and a slew of other improvements. The AAAA records collaborate with the A records and are saved in the same zone.

PTR record

The PTR record, often known as a Pointer record, is another crucial DNS record. We use it for backchecks and perform the reverse of the A record. In addition, it connects a hostname to an IP address (IPv4 or IPv6). It’s essential because the rest of the servers in the globe may require proof that an IP address corresponds to a hostname before accepting a service, communicating, or taking any other action. As a result, we frequently use it in the host’s authentication.

MX record

The following essential DNS record type is the Mail Exchanger record. The primary purpose of MX record is to point the email server to receive emails for a specific domain name in the right direction. It contains the domain name that means the hostname of the incoming mail server. This type of record must point to a hostname rather than an IP address is extremely crucial.

CNAME record

And we come to the last necessary type of record. A CNAME record, also known as a Canonical record, is a means to make subdomain management easier. For example, you point a subdomain like www.example.org to example.org (without the www. portion), and you won’t have to add any additional records for that subdomain. So when a user wants to access your website, he types in the address bar only example.org. Instead, all subdomain queries will be directed to the main domain.

Conclusion

Congratulations, you are already familiar with the fundamental DNS record types. This is one small step towards successful and easy management of your Domain Name System.