Author Archives: Alan

DKIM record – Everything you need to know

DKIM record – What does it mean?

The DKIM record, or DomainKeys Identified Mail, is a security standard allowing domains to sign outgoing emails through cryptographic authentication. In this approach, domains can demonstrate that the emails arriving from their end are authentic. So they are trustworthy. The DKIM record also protects communications to stop tampering with them while in transit (sending server-recipient server).

How does it function?

In addition to collaborating with SPF and DMARC to create several layers of security for domains sending emails, DKIM is compatible with the current email infrastructure. When an email leaves the sender server, it is signed with a private key using public-key cryptography.

Then, in order to confirm the message’s origin and ensure that it was not altered in transit, recipient servers employ a public key that has been made available to a domain’s DNS. Finally, the email passes DKIM and is valid if the receiver server confirms the signature using the public key.

How to check DKIM record?

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Easy guide for checking DNS propagation.

You make some urgent modifications to your DNS records. An hour later, your boss calls you complaining because changes are not visible. There are two choices. You get very nervous, not understanding what’s wrong. Or you know perfectly what DNS propagation is, therefore you can totally confidently answer to your boss that he has to be patient and wait for this process to be completed.  

4 factors that affect the DNS propagation speed

For online business owners and administrators, DNS propagation can be a cause of constant headaches. Or not, if you learn its details. That’s why we prepared for you this easy guide for understanding and checking the DNS propagation process.

What is DNS propagation?

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DNS Spoofing: Why is it so dangerous?

DNS Spoofing is an absolutely dangerous and harmful attack. In this article, we will explore its purpose, the different DNS Spoofing methods, and the ways to protect yourself against it. If this matches your desire, let’s start.

DNS Spoofing purpose

Cache poisoning, often known as DNS Spoofing, is a hacking attack. To respond to users’ queries by transmitting a forged record, such as a phony IP address, malicious DNS data or files (forged records, forged entries) are placed into the DNS cache of a resolution server. The goal is simple: redirect visitors to a site where attackers will attempt to steal users’ passwords and sensitive information.

The falsified data fools consumers’ devices into thinking they’re visiting the legitimate website they requested. Instead, they’re on their way to an unsafe location controlled by assailants. When users arrive, the website may resemble the one they expected. They are, however, in a forgery.

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What is CMS?

What does CMS stand for?

CMS means Content Management System, and it is a software program that allows you to generate and edit the content on your website. A CMS typically serves multiple users in a shared collaborative environment. Each of them has access to all or some basic content creation, reading, updating, and removal (CRUD) functionalities.

In certain situations, a CMS will function as a web content management system (also known as WCM or WCMS), which means handling website content. This indicates you can use this system to manage all of your web content. This includes text, graphics, video, and audio, all of which you can control and publish to your website using your CMS.

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What does DNS cache mean?

The Domain Name System (DNS) is a keystone for the Internet to work as well and easily as it does for users. But to be vital means, it’s always busy, hard demanded and sometimes, even stressed.

Balancing this and not risking the important mission DNS has, different mechanisms and technology have been developed to make some tasks easier. The objective is to reduce work for the system and devices and accelerate the answer to users’ requests. 

And that is the case with DNS cache!

How to flush the DNS cache?

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Cheat sheet with the most common DNS records

The Domain Name System (DNS) is pretty extensive, and DNS records help for its easier management. So, for every beginner it is essential to know and understand the fundamental ones. Here is a short but very useful cheat sheet with the most common DNS records! 

A brief introduction to DNS records 

DNS record is a simple instruction related to a particular domain name. The entire collection of records is gathered in a zone file in the DNS zone. The authoritative DNS server of the specific domain name stores all of this information. Each record has its purpose and function. That is why all of them are very fundamental for the proper operation of the domain.

What is the purpose of RP record?

DNS records – Cheat sheet

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​What is a Smurf DDoS Attack?

The Smurf DDoS attack takes its name from the malware used to execute the attack. Smurf malware was created by an adolescent, Dan Moschuk (1997). First, he shared the original software just with his friends, but the smurf.c was crashing Internet Relay Chat (IRC) servers a bit later.

For Dan, this was an achievement. For the world, it was another threat to be worried about. 

The Smurf malware proved to work, and that encouraged him to enhance it for being more harmful. And he got it. Years later, he released his Fraggle.c., a UDP version of the Smurf software.

What is a Smurf DDoS attack?

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​How DNSSEC works Step by Step

The DNS protocol is over 30 years old. It is amazing that it is still working so well. But it has a massive flaw, the security. So here comes the security extension called DNSSEC that provides digital signatures (keys) that let DNS clients validate and prove that the DNS data was not modified on the way, and it can also prove a negative answer (the requested item does not exist).

​What is DNSSEC? 

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Email forwarding – Definition

Email forwarding explained. 

Email forwarding is a simple mechanism for automatically redirecting emails, but on a domain level. It is possible to redirect emails from one email address to another, or in the other case, from several separate email addresses to a particular one. You are able to define the time factor freely while getting the service. So, that means you can choose for what period of time this operation is going to be performed. You can define a short, medium, or long period, or maybe even you want it to be permanent.

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SPF record – What is it?

SPF record explained.

SPF record stands for Sender Policy Framework record is a DNS (Domain Name System) record that specifies essential information for a domain name. It points to the outgoing mail server that is responsible for the particular domain. The MX (Mail eXchanger) record serves to show which email servers are responsible for the incoming emails for the domain. On the other hand, SPF records indicate which email servers qualified for sending emails on behalf of the domain name.

Benefits of using SPF record

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