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Also known as: TLS, SSL, Transport Layer Security
The cryptographic layer that encrypts an NNTP connection, TLS being the current protocol and SSL its deprecated predecessor. On a news connection it protects the password sent by AUTHINFO, the group names requested and the article data returned. Modern servers accept TLS 1.2 and 1.3 and refuse older versions. Enabling it costs a few percent of CPU and no meaningful download speed.
Browse all terms in Protocol & Server Infrastructure, or see the full Usenet glossary.