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Also known as: Path
A header recording the chain of servers an article has already passed through, written as hostnames separated by exclamation marks and read right to left from the injecting site outward. Each server prepends its own name and refuses to feed the article back to any host already listed, which is how the network prevents loops. Tracing a Path is the standard first step in diagnosing propagation problems.
Browse all terms in Core Usenet Concepts, or see the full Usenet glossary.