A dangling CNAME record refers to a configuration where a CNAME points to a domain or subdomain that no longer exists or is no longer under the control of the intended owner. This seemingly harmless oversight can introduce significant security risks, potentially leading to various vulnerabilities. The utilization of third-party hosting services has gained significant […]
By default, the router will use the DNS server of your ISP without the option to specify the DNS server of your choice. The router does support the ability to specify a custom DNS server, but for unknown reasons, this option is not available by default in the administration interface. Fortunately, it only takes a […]
The Cloudflare authoritative DNS product is a great DNS solution running on one of the world’s fastest infrastructures with high availability. The good part is that they offer a free tier that will suit the needs of most personal and business domains. If you are managing several domains and often need to add G Suite […]
G Suite now called Google Workspace, and formally known as Google Apps, is a collection of Google services including Gmail with custom domains, all available through a single user account. G Suite’s default MX records (aspmx.l.google.com, and alt<1-4>.aspmx.l.google.com) are not DNSSEC signed. For users wanting DNSSEC signed G Suite MX records, Google has made such […]
Recently my web hosting provider BuyShared (also known as BuyVM and Frantech) started using the SMTP provider MailChannels for outgoing e-mails. This is a neat feature that increases mail deliverability. Before switching to MailChannels, BuyShared routed outgoing mail through a local SMTP server. Due to more advanced and strict spam filters and policies by most […]
Spam is a well-known problem for all Internet users, especially technical administrators of Internet services. I own several domain names used for different purposes. Most of my domains are not supposed to receive e-mails. However, spammers don’t care and will still send spam mails to these domains. Even without Mail eXchange (MX) records a domain […]
Domain name system (DNS) (also sometimes referred to as domain name service or domain name servers) is an essential part of not only what makes the World Wide Web work, but most parts of the Internet. In essence, DNS is used to translate hostnames into actual IP addresses, routing mail to the right servers, etc. […]
Need free secondary (slave) domain name servers (DNS)? Luckily there are several stable providers offering this. The following list contains only providers that have proven stability and commitment. The list is based on my own experiences and by going through reviews of the services. Information about the performance of most of the listed providers can […]
MaraDNS is a simple lightweight domain name service (DNS) including both an authority and a recursive DNS. In a few words DNS is used to translate domain names (for example, bornoe.org) into an IP address (for example, 127.0.0.1) bound to a specific server on the Internet. An authority DNS contains information about specific domains and which […]