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Paessler Blog
How to Look at Network Traffic: Essential Tools and Methods for Real-Time Analysis
Network traffic monitoring is one of the most crucial tasks for any IT professional or sysadmin. Whether you’re troubleshooting performance issues, hunting for security vulnerabilities, or optimizing bandwidth usage, understanding how to effectively monitor network traffic can be the difference between a healthy network infrastructure and costly outages.
Monitoring Basics: How to Check Network Traffic
It's always DNS. Unless it's not. Then it's the network. Or perhaps the firewall? Or wait, actually, according to Chris in accounting, it's CERTAINLY malware because his nephew 'knows computers'. Welcome to every network performance troubleshooting discussion ever because everyone is an expert and all you get to do is smile politely.
PRTG multi-platform probe joining the Siemens Industrial Edge Ecosystem
We are excited to announce a major step forward in OT monitoring: PRTG multi-platform probe is now available on the Siemens Industrial Edge Marketplace. This partnership bridges the gap between IT and OT environments. It gives customers better visibility and more direct control over their industrial operations.
Network Segmentation: Dividing Your Network to Stop Attackers
An attacker has just deployed malware on your network via a compromised employee laptop. In a flat network, they scan your entire internal network, locate your database servers, and exfiltrate customer data in a matter of hours. With network segmentation in place, that same laptop ends up in a guest segment with no route to production systems. The breach gets contained before disaster.
Observability vs Monitoring: Key Differences Every IT Team Should Know
Your digital transformation is only as good as the technology that supports it, which is why it's so important to maintain the system health and performance of your infrastructure. Do you have microservices or distributed systems to keep track of? Cloud-native apps, container workloads, Kubernetes environments, or multicloud systems? You need to see what's happening across your entire IT landscape, and the critical question is, how do you do that?
Monitoring Matters Webinar Series Recap: From Network to Storage
Throughout 2025, our Monitoring Matters webinar series has been packed with practical advice, live demos, and expert tips to help you monitor the most important components of your IT infrastructure. Whether you’re monitoring network devices, virtualization, physical servers, power, or storage, these sessions are packed with information you can immediately put into practice.
Network Loops: The One Infrastructure Killer You Can (Mostly) Prevent
Network loops are one of the few pieces of evidence that the universe loves to laugh at us. Somewhere, right this minute, a five-dollar Ethernet cable is taking down a million-dollar infrastructure. An innocent intern trying to get internet in the conference room has both ends of a patch cable plugged into the same switch, and now 500 employees are staring at the spinning wheel of doom. Meanwhile, the CEO's slideshow presentation is stuck on the same slide for the umpteenth time, and the accounting department rocking back and forth crying, "Remember the good old days of the pre-internet world?"
Network Automation: From Manual Chaos to Automated Peace of Mind
Manual network configuration is slow, error-prone, and doesn’t scale. Human error causes 70-75% of all network outages, and the average cost of 1 hour of network downtime has now surpassed $300,000 for enterprise organizations. Network automation helps solve both issues by eliminating manual configuration tasks and introducing consistency across your entire infrastructure.
PRTG vs RMM: Why Network Monitoring Complements Your RMM Tool
If you're using an RMM (Remote Monitoring and Management) solution or IT management tool, you may ask yourself if you need another piece of monitoring software as well. The question is valid, and we get it. Many IT professionals and sysadmins want to know how using Paessler PRTG Network Monitor can benefit them when they already have an endpoint or patch management tool.
Enable SNMPv3 on Windows and Linux: Complete Configuration Guide
Monitoring network devices is a must-have for network admins, but they need to do it securely. The Simple Network Management Protocol (SNMP) has helped millions of admins collect information and monitor networks over the past several decades. SNMP has had security improvements over the years, and that has resulted in three versions, v1, v2c, and v3, but the first two send information unencrypted.
What Causes Network Jitter and How to Fix It
You're on a video call with a client when suddenly their voice turns into a garbled mess of stuttering syllables. The screen freezes mid-sentence, and by the time the video catches up, you've missed half the conversation. Sound familiar? That's network jitter at work, and it's the silent killer of real-time communication.
How to Improve Network Latency: Beyond Bandwidth and Speed Tests
Network latency can make or break user experience. Gamers feel every millisecond of delay; video conferencing teams struggle when jittery lag ruins every session; business application users watch productivity tank as they wait for slow responses. You've probably spent more time troubleshooting network issues than you would like. Worst of all? End-users do not care about your router settings or bandwidth. They only care that things are supposed to work fast and often do not.
SQL Server Performance Monitoring: Essential Tools and Best Practices for Database Optimization
Microsoft SQL Server databases power many applications that are the lifeblood of businesses in today’s data-driven world. Whether your servers are on-premises or hosted in Azure, your company relies on the availability of your SQL Server instances to power your applications. However, poorly performing databases can have a negative impact on user experience and revenue generation and slow productivity throughout your business.
How to Find the Cause of Packet Loss in Your Network
When users complain of dropped video calls, stuttering applications, or files that won't upload properly, 90% of the time you can probably blame packet loss. It's one of those network performance issues that make you feel like the whole network is shot, even when your equipment is fine.
PRTG 25.4.112 is now available in the stable release channel
Great news for your monitoring setup! We've just released PRTG version 25.4.112 to the stable release channel. This version brings you the new SNMP Linux Disk Free v2 sensor, several security improvements, and updated language files for German and Spanish.
