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Loopback address: What it is and how to use it
A loopback address is a way for a computer to talk to itself. Instead of being sent outward, data directed to a loopback address returns to the same device. This can be a useful tool for testing appli...
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Network topology: Best practices for modern networks
A well-designed network starts with a clear understanding of its structure. Network topology is the blueprint of how devices and connections interact, and it plays a key role in determining a networkâ...
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What is 128-bit encryption, and is it still secure in 2026?
128-bit encryption remains a cornerstone of online security, protecting everything from virtual private network (VPN) traffic to mobile apps. It’s widely used and has never been reported to have bee...
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Nameserver: The complete guide to setup, management, and troubleshooting
Nameservers are essential for any functioning website or email domain. Without proper nameserver configuration, emails wouldn't reach their destinations, and visitors would encounter loading errors wh...
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Connected but no internet access: Why it happens and how to fix it
Getting a message stating that you’re connected but have no internet access can be frustrating. If your network is fine, why won’t websites load? It’s often unclear what has caused this error me...
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PPTP vs. L2TP: What’s the difference?
The Point-to-Point Tunneling Protocol (PPTP) and Layer 2 Tunneling Protocol (L2TP) are both virtual private network (VPN) tunneling protocols, but they function very differently. All VPNs direct inter...
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Log4Shell vulnerability: What it is and how to stay protected
The Log4Shell vulnerability gained global attention when it was discovered in late 2021. Affecting the widely used Log4j logging library, this flaw made it dangerously easy for attackers to remotely e...
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Cloud VPN services explained
As remote and hybrid work become more common, businesses need ways to provide employees around the world with secure access to files, apps, and other critical resources. Accessing these resources from...
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How to use LinkedIn private mode for maximum privacy and networking
Unlike many social media platforms, LinkedIn usually notifies users when someone views their profile. That visibility can work in your favor, but there are times when you may want to look without bein...
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What is Trojan malware? Full guide to risks and protection
Trojans are a type of malware that trick victims into downloading their dangerous payload by masquerading as safe software or files. Depending on the specific threat, a Trojan may stealthily gather yo...
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