Tech Blog
The Netstat command is a network troubleshooting tool that lets you view active connections, listening ports, routing information, network interfaces, and protocol statistics on a computer or server. If you need to find out which ports are open, whether a server has active connections, or which application is using a particular port, Netstat can quickly … Read More “Netstat Command Explained: How to Check Network Connections” »
DNS resolver is a key part of the Domain Name System (DNS), the technology that helps your browser find websites on the internet. Every time you type a domain name such as example.com into your browser, a DNS resolver helps find the IP address connected to that domain. Without them, you would often need to … Read More “What Is a DNS Resolver and How Does It Work?” »
Split-Horizon DNS is one of those DNS concepts that sounds more complicated than it really is. The idea is simple: the same domain name can return one answer to users inside a private network and another answer to users on the public Internet. This approach is often used by businesses that want employees to access … Read More “How Split-Horizon DNS Works and When to Use It” »
DNS TTL is a small setting with a big job. It controls how long DNS information can stay cached before it needs to be checked again. Choosing the right TTL can make DNS changes smoother, help with migrations and failover, and reduce unnecessary DNS queries. What Is DNS TTL? DNS TTL stands for Time to … Read More “What Is DNS TTL and Why Does It Matter?” »
SS command is a useful Linux networking tool that helps you inspect network connections, open ports, and active sockets on a server. If you manage a Linux system, troubleshoot connectivity problems, or want to see which services are listening for connections, ss is one of the most practical commands to know. The command is fast, … Read More “SS Command Guide for Beginners” »
DNS is a core part of how the Internet works, connecting domain names with the right online services. Today, artificial intelligence is adding a new layer to DNS by helping detect threats, analyze traffic and automate network management. So, what does the combination of DNS and AI actually look like? Let’s take a closer look. … Read More “DNS and AI: How Artificial Intelligence Is Changing Domain Name Systems” »
DNS Propagation is the process that happens after you change a domain’s DNS records and those changes begin spreading across DNS servers and resolvers around the world. If you have ever updated an A record, changed nameservers, connected a domain to a new hosting provider, or modified an MX record, you may have noticed that … Read More “What Is DNS Propagation and How Long Does It Take?” »
VoIP has changed the way people and businesses communicate. Instead of relying only on traditional telephone lines, calls can now travel through the Internet, making communication more flexible, scalable and easier to manage. VoIP stands for Voice over Internet Protocol. It allows voice calls to be transmitted through IP networks, including the Internet. Today, VoIP … Read More “What Is VoIP? How It Works, Benefits and Key Features” »
The Dig command is a powerful DNS lookup tool that helps you find information about domain names, DNS records, nameservers, mail servers, and IP addresses. System administrators, developers, and network engineers often use it to troubleshoot DNS problems and verify that a domain is configured correctly. If you are new to DNS, the output may … Read More “Dig Command Explained for Beginners” »
A VPN is one of the most widely used tools for improving online privacy, securing remote connections, and protecting data on untrusted networks. Businesses use VPNs to connect employees to internal systems, while individual users rely on them when using public Wi-Fi, accessing home networks remotely, or reducing how much information their Internet connection exposes. … Read More “Why Use a VPN? Benefits, Risks, and Use Cases” »
