At its core, DNS is a distributed database system that connects domain names, likewww.a2hosting.com, to their corresponding IP addresses, such as192.0.2.1. These IP addresses are necessary for computers to locate and communicate with one another over the internet. Without DNS, users would need...
The job of matching URLs to IP addresses (more technically referred to as resolving DNS queries) is performed by DNS servers. These servers also communicate with other DNS servers to ensure that all URL to DNS mappings remain up-to-date. The software for setting up a DNS server isfreely av...
What is DNS? Your gateway to understanding the intricate web of domain names and IP addresses. Learn how this foundational tech ensures smooth browsing.
Every website has at least oneIP address, a string of numbers that identifies the server where the website’s data is hosted. For example, the IP address for hubspot.com is 172.64.148.142. However, remembering a different IP address for every website you visit would be a pain. Custom D...
SmartDNS Frequently Asked Questions about DNS Server Exception Over the past few years that I’ve been writing about personal online security, these are the most common questions that I get about using and setting up SmartDNS. Is SmartDNS Legal?
Access intranet:The default setting for this option is disable. If you do not want guest devices to access other devices or services on the internal network (such as NAS, network neighbors, computer shared folders, etc.), please keep this option disabled. Conversely, you can enable this optio...
Moreover, the reporting aspect of DMARC provides insights into both legitimate and unauthorized email activities, enabling domain owners to refine their email security measures over time. The Structure of a DMARC Record A DMARC record is a TXT record in your domain’s DNS zone that follows a ...
There are risks associated with UPnP because it is an autonomous and permissive networking technology. Firewalls can be used to construct gateways by connecting internal ports to the router’s exterior, which is one potential method of exploitation. The DNS server settings are changed to load fake...
However, if there was a DNS change for the website’s domain, your local DNS cache may store outdated information. This may result in the “502 Bad Gateway” error. This is why it is recommended to clear your local DNS cache. Depending on your OS (operating system), the process varies...
End users can protect themselves against DNS hijacking by changing router passwords, installing antivirus, and using an encrypted VPN channel. If the user’s ISP is hijacking their DNS, they can use a free, alternative DNS service such as Google Public DNS, Google DNS over HTTPS, and Cisco ...