DNS query Archives - internet-eireann.ie

The Ultimate Guide to DNS Monitoring for Businesses

Sep 12, 2024 Igor

Tags: A record, CNAME record, Cron-Job Monitoring, DNS attack, DNS cache poisoning, DNS Hijacking, DNS Monitoring, DNS Monitoring service, DNS propagation, DNS query, DNS record, DNS resolution, Domain Name System, Domain Name System Monitoring, IP address, MX record, SSL/TLS Certificate Monitoring, TCT record, TTL

In today’s digital world, Domain Name System (DNS) plays a pivotal role in connecting users to websites, services, and online resources. A robust DNS infrastructure is critical for businesses to ensure seamless online operations, high performance, and protection against potential attacks. DNS monitoring is essential to maintain the health, speed, and security of DNS services. In this guide, we will explore DNS, DNS monitoring, its importance, key metrics to monitor, common DNS issues, and how DNS monitoring integrates with other types of system checks, like cron-job and uptime monitoring.

DNS – Explained

The Domain Name System (DNS) is a hierarchical naming system that translates human-readable domain names (like www.example.com) into machine-readable IP addresses (like 192.168.1.1). When users type a URL into their browser, DNS servers are responsible for resolving that URL into the appropriate IP address, enabling computers to connect to the desired website or service.

DNS Caching Explained: Benefits and Challenges

Aug 16, 2024 Igor

Tags: CDN, DNS cache, DNS cache poisoning, DNS Caching, DNS query, DNS records, DNS spoofing, DNSSEC, Domain Name System Caching, Load Balancing, TTL

DNS (Domain Name System) caching is a crucial component of the internet’s infrastructure, designed to improve the efficiency and speed of domain name resolution. When you type a website address into your browser, DNS caching helps your system quickly locate the corresponding IP address without having to repeatedly query DNS servers. However, while DNS caching offers several advantages, it also introduces certain challenges that must be understood and managed.

What is DNS Caching?

DNS caching is the process by which DNS query results are temporarily stored in memory at various levels of the internet infrastructure. These cached results are reused when subsequent requests for the same domain name are made, significantly speeding up the browsing experience.