What Is Port Forwarding?
Learn what port forwarding is, how routers direct inbound traffic to a local device, why CGNAT can prevent it, and how to expose services more safely.
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Page 3 of privacy, VPN, Linux, networking, and cybersecurity articles
Latest Articles
How Routing Works on the Internet
Learn how packets find a path across the internet, from your default gateway and routing table to prefixes, autonomous systems, BGP, and VPN routes.
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Split Tunneling Explained
Learn what VPN split tunneling is, how app- and route-based rules work, when it is useful, the privacy tradeoffs, and how to choose a safer setup.
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What Is a Kill Switch?
A VPN kill switch blocks traffic if the VPN disconnects unexpectedly. Learn what it protects, how network locks differ, their limits, and how to test one.
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IKEv2/IPSec vs OpenVPN: What Is the Difference?
Compare IKEv2/IPSec and OpenVPN: how they work, their network behavior, security configuration, device support, and when each VPN protocol may fit.
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WireGuard vs OpenVPN: Which VPN Protocol Is Right for You?
Compare WireGuard and OpenVPN: protocol design, transport behavior, configuration flexibility, device support, and realistic performance tradeoffs.
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IKEv2 vs WireGuard: Which VPN Protocol Is Right for You?
Compare IKEv2/IPsec and WireGuard: how they connect, handle network changes, and what to consider for security, compatibility, routing, and reliability.
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AES-256 vs ChaCha20: What’s the Difference?
AES-256 and ChaCha20 are modern encryption algorithms. Compare their designs, performance factors, secure modes, and why a cipher name alone is not enough.
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What Is Perfect Forward Secrecy (PFS)?
Perfect forward secrecy uses temporary session keys to help protect earlier sessions if a long-term key is later exposed. Learn how PFS works and its limits.
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