The Best Tech Tips

Six Benefits Of IPv6

What is IPv6?

IPv6 is the latest version of the Internet protocol (IP). The purpose of Internet protocols is to set specific rules for the devices to send and receive information successfully. The exchange of information is between two hosts. So, for that reason, they have to be able to be identified. IP addresses come to help in this situation to track each host’s location. Finally, the two corresponding IP addresses are acknowledged, and the route is established for the entire data exchange.

An interesting fact is that IPv6 was officially introduced in 1995. That is more than twenty years! The massive growth of devices and the Internet’s gained popularity forced the need for the new IPv6. It was decided that IPv4 could not be able to provide the required amount of IP addresses. So, that is why IPv6 got developed. However, the transition to the newer version takes time. The majority of the devices, such as computers, smartphones, and the Internet of things (IoT), request a unique IP address to connect to the web daily. Let’s talk a little bit more about the benefits of IPv6!

Effective routing

With IPv6, the size of routing tables is reduced, and routing is a lot more effective. It lets ISPs aggregate the prefixes of their clients’ networks into an individual prefix and state this one prefix to the IPv6 Internet. Furthermore, in IPv6 networks, the fragmentation is managed by the source device and not by the router. That is possible by applying a protocol to identify the path’s maximum transmission unit (MTU).

Effective packet processing

The IPv6 has a more simple packet header that produces more efficient packet processing. Furthermore, in contrast with IPv4, IPv6 doesn’t include IP-level checksum, and the checksum is not recalculated at each router hop. Most link-layer technologies already have checksum and error-control abilities, because of that, eliminating the IP-level checksum was possible. Besides, the majority of transport layers that control end-to-end connectivity also hold checksum that lets error detection.

Directed data flow

The new IPv6 supports multicast, which allows bandwidth-intensive packet flows. They can be carried to various destinations simultaneously and save network bandwidth. Hosts that are not interested will no longer process broadcast packets. Moreover, the IPv6 header has a new field. It is called Flow Label, and it can recognize packets that belong to the related flow.

Simple network arrangement

IPv6 comes with a built-in auto-configuration for address assignment.

A router is going to send the prefix of the local link in its router advertisements. Therefore, a host can produce its personal IP address via adding its link-layer (MAC) address, transformed in Extended Universal Identifier (EUI) 64-bit arrangement, to the 64 bits of the local link prefix.

New services support

Actual end-to-end connectivity at the IP layer is reconstructed by excluding Network Address Translation (NAT). Additionally were enabled brand-new and helpful services. As a result, peer-to-peer networks are much easier to make and sustain, plus services like VoIP and Quality of Service (QoS) are getting more robust.

Security

IPv6 has a boost with IPSec. It offers authentication, confidentiality, and data integrity. However, IPv4 ICMP packets have the potential to transfer malware, so usually, they are blocked by corporate firewalls. Yet, the firewalls may permit ICMPv6, which is the new appliance of the Internet Control Message Protocol for IPv6. The reason is IPSec is possible to be used to the packets of ICMPv6. 

5 Tips for Choosing the Best DNS Provider

Choosing the services your online business needs can be a little bit confusing. Even if you are an IT expert, checking among all the existing options and providers can be exhausting.

Not to get lost while navigating on the sea of options, here you have 5 tips for choosing the best DNS provider for your business.

Availability is a must. 

If your website can’t be reached, the risk of losing clients is big. A robust network with servers located all around the world for redundancy sounds ideal. The next step is to check that those locations are convenient for your business. Be sure those countries are your market or that they are close to it.

Uptime is a term that points to the effective operation time of a server, and therefore your website has. It’s a measurable factor absolutely linked with availability. Check the uptime records of the providers to see how much availability they really can guarantee. If you see constant outages in the service or downtime, it’s an alert not to hire the service. 

Availability is really key, and providers know it. DNS professionals establish the uptime they offer in the service level agreements (SLAs) as a guarantee for clients. 

Security.

DNS infrastructure faces dangerous risks. Plenty of cyber attacks keep occurring worldwide. As a result, an efficient strategy and technology for preventing, protecting clients’ websites, and guaranteeing their availability is a must.

A network with multiple points of presence distributed across the world, in addition to an efficient load balancing mechanism, DNS Failover, and anti-DDoS servers’ protection, are very helpful. Additional features like DNSSEC and two-factor authentication for the backend are a must. This can point the DNS provider will really handle traffic to avoid threats like the evil DDoS attacks. And even if a DNS server gets compromised, your website can keep safe and running due to the other servers included in the network. 

Performance. 

Check the capacity of the DNS provider have for resolving users’ queries worldwide. An Anycast network is a good beginning for you to consider a vendor seriously. Such a network will increase your domain’s availability and speed, reducing latency, bandwidth fee, and loading time. 

Customer support. 

DNS management is not a simple task. The smallest mistake while adding, editing, or deleting DNS records can affect your website performance or availability. Expert support is not a minor advantage. Be sure it’s included, available 24/7, that they speak your language or a common one, and try the contact ways they offer to see if they really work. DNS issues can really impact your profits. If an issue appears, you need to fix it fast and efficiently.

Look for competency and experience. 

There are many providers on the market, but there is a big difference between companies that offer DNS services as their main business and the ones that provide them as an add-on. Based on this, they can offer you a more robust or simpler infrastructure. 

DNS is an online media’s key component. A proper architecture, constant monitoring, and optimization are totally needed for supplying the best results. A competent network, modern equipment, and software can provide you fast resolution for your domain, 100% uptime, capacity for handling big volumes of queries per day, and more.

Conclusion.

DNS service will be the core of your website. Consider the previous parameters and your real business needs. Then, check the most suitable DNS service provider and price for your budget. Some DNS providers are globally recognized and expensive. But there are smaller DNS providers with good quality and lower prices.

5 of the biggest DDoS attacks in recent years

DDoS attacks are a constant problem that any business could suffer. 

They are massive controlled traffic that is directed to a target (server) with the goal of taking it out of order.

Directly or indirectly, one day, you will be affected. They are getting more frequent, and we can easily expect around 10 million attacks this year. Here, we have 5 of the biggest DDoS attacks in recent years. Those who really hit strong and disrupted businesses. 

2021 Gambling company and DDoS ransom attack

This year’s entry focuses on a particular strategy some cybercriminals love – a ransom attack! The attack was complex and lasted months. When it became critical was in March 2021, when the traffic reached 800+ Gbps. Akamai was the company that was in charge of defending the gambling company. It reported that the problem was in a network protocol called Datagram Congestion Control Protocol (DCCP). It led to a volumetric attack that bypassed the typical TCP and UDP traffic defenses. Still, Akamai managed to handle it.

2020 AWS DDoS attack

Amazon Web Services are getting attack constantly. What is interesting about this case from February 2020 is that the traffic was massive. At its peak, it reached an astonishing volume of 2.3 Tbps! Of course, AWS could swiftly mitigate the danger and handle the situation, but it was still an impressive attempt to bring AWS down and got a record for the strongest DDoS attack yet. The vulnerability that the hackers used was a part of the CLDAP (Connection-less Lightweight Directory Access Protocol). 

2019 Imperva SYN attack

During 2019, the company Imperva had two strong attacks to stop and save its clients. One was a DDoS SYN flood attack with 500 million packets per second (PPS) and the other with 580! It got the record for the largest application layer attack, so definitely a nasty attempt. The packets’ size was significant too. They range from 800 to 900 bytes each. 

2018 GitHub Memcached attack

The attack that brought down GitHub in 2018 was incredibly severe. The traffic was 1.35Tbps per second! Of course, GitHub protection was not strong enough, and after a while, it couldn’t respond anymore. The whole problem started thanks to the exploited communication port – 11211 UDP. The criminals use it to amplify the attack and send traffic, almost a hundred times the size of the original request. 

2017 Blizzard DDoS attack

The game company Blizzard also has its enemies. In 2017 their servers were under attack, and this time it was a very strong DDoS attack. Many gamers couldn’t connect to the servers and play some of their favorite games like World of Warcraft, Diablo, StarCraft, and more. It left them angry and without service for several hours. Since then, there have been more attacks, and Blizzard is still a big target. 

Conclusion

We are heaving a steady rise in the number of DDoS attacks. They also become more complex and stronger. We can see around a 10% increase each year, and we are already in the 10 million range. More news will come about new DDoS attacks, and new dark records will be made. It is inevitable. So, next time when you can’t send something through your messenger app or the email client does not work, it is probably another DDoS attack.