Split-Horizon DNS: One Name, Two Answers, and the Server Decides by Who's Asking
Originally published at https://blog.pathvector.dev/protocol-lab-dns-views-42-split-horizon/ — part of the free Protocol Lab series. This post is part…
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DNS Round-Robin: The Cheapest Load Balancer Is Three A Records and a Rotating Answer
Originally published at https://blog.pathvector.dev/protocol-lab-dnsrr-41/ — part of the free Protocol Lab series. This post is part of Protocol Lab ,…
DNAT Explained: Publishing an Internal Service Through One Public Address and Port
Originally published at https://blog.pathvector.dev/protocol-lab-dnat-40/ — part of the free Protocol Lab series. This post is part of Protocol Lab , …
TCP MSS Clamping: Fixing Path MTU Black Holes by Rewriting the SYN
Originally published at https://blog.pathvector.dev/protocol-lab-mss-37/ — part of the free Protocol Lab series. This post is part of Protocol Lab , a…
ECMP Explained: Two Equal Paths, and the Kernel Hashes Flows Across Them
Originally published at https://blog.pathvector.dev/protocol-lab-ecmp-32/ — part of the free Protocol Lab series. This post is part of Protocol Lab , …
DHCP Explained: How a Machine With No IP Address Gets One in Four Messages
Originally published at https://blog.pathvector.dev/protocol-lab-dhcp-22/ — part of the free Protocol Lab series. This post is part of Protocol Lab , …
How traceroute Really Works: TTL, ICMP Time-Exceeded, and Mapping a Path Hop by Hop
Originally published at https://blog.pathvector.dev/protocol-lab-trace-19/ — part of the free Protocol Lab series. This post is part of Protocol Lab ,…
VXLAN Explained: An Overlay You Can Read on the Wire
Originally published at https://blog.pathvector.dev/protocol-lab-vxlan-18/ — part of the free Protocol Lab series. This post is part of Protocol Lab ,…
WireGuard, Seen From Both Sides: The Same Ping as Ciphertext and Cleartext
Originally published at https://blog.pathvector.dev/protocol-lab-wg-16/ — part of the free Protocol Lab series. This post is part of Protocol Lab , a …