General Articles
Optimizing Email Delivery: A Guide to Properly Setting Up DNS Records
Sending emails is something we all do, but making sure they actually show up in someone’s inbox? That’s where it…
Tag: dns
Web Server Administration and Security
Let’s Encrypt: Renew Wildcard Certificate With DNS Validation
As the trend toward secure web traffic continues to increase, more sites than ever are using SSL/TLS certificates to ensure…
General Articles
Understanding Reverse DNS: What it is and Why it Matters?
Reverse DNS, also known as rDNS, is a system that maps an IP address to a hostname. Unlike traditional DNS…
General Articles
How to Generate SPF Records for Your Domain
When you add an SPF record to your domain, it helps indicate whether your email is being spoofed or not.…
General Articles
How to Generate DMARC Records for Your Domain
What is DMARC? Domain-based Message Authentication, Reporting, and Conformance (DMARC) is a technical specification for email authentication that was developed…
Linux Tutorials
Clearing DNS Cache in Ubuntu and Linux Mint: A Step-by-Step Guide
DNS caching is a technique used by operating systems and applications to temporarily store DNS query results to reduce latency…
Linux Tutorials
Disabling Local DNS Caching on Ubuntu and Linux Mint Systems
DNS (Domain Name System) caching is a technique used by operating systems and applications to store the resolved domain names’…
General Articles
What are the Authoritative vs Non-authoritative DNS Servers
The Domain Name System (DNS) is a fundamental part of the internet infrastructure, as it translates human-readable domain names into…
Linux Commands
10 Practical Examples of nslookup for Troubleshooting DNS Issues
The `nslookup` command is a powerful tool used by system administrators and network engineers to troubleshoot DNS issues. This command…
General Articles
How to Configure DNS Settings on Ubuntu & LinuxMint
To configure your system on network and access internet. You also need to configure dns server. It is necessary to…