Internet Assigned Numbers Authority

Network News Transfer Protocol (NNTP) Parameters

Created
2005-07-12
Last Updated
2017-04-24
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Registries included below

NNTP Capability Labels

Registration Procedure(s)
Labels beginning with X are reserved for private use. 
All others: Standards Track RFC or an IESG-approved experimental protocol.
Reference
[RFC3977]
Note
All capability labels in the registry MUST consist only of US-ASCII
letters, digits, and the characters dot (".") and dash ("-"), and
MUST begin with a letter other than X.  They MUST be at least
three characters.
    
Available Formats

CSV
Label Meaning Reference
AUTHINFO Authentication [RFC4643]
COMPRESS Supported compression algorithms [RFC8054]
HDR Batched header retrieval [RFC3977]
IHAVE IHAVE command available [RFC3977]
IMPLEMENTATION Server implementation-specific information [RFC3977]
LIST LIST command variants [RFC3977][RFC6048]
MODE-READER Mode-switching server and MODE READER command available [RFC3977]
NEWNEWS NEWNEWS command available [RFC3977]
OVER Overview support [RFC3977]
POST POST command available [RFC3977]
READER Reader commands available [RFC3977]
SASL Supported SASL mechanisms [RFC4643]
STARTTLS Transport layer security [RFC4642][RFC8143]
STREAMING Streaming feeds [RFC4644]
VERSION Supported NNTP versions [RFC3977]

NNTP Compression Algorithms

Registration Procedure(s)
First Come First Served
Reference
[RFC8054]
Note
NNTP compression algorithms are named by strings from 1 to 20 
characters in length consisting of uppercase letters, digits, 
hyphens, and/or underscores.
    
Available Formats

CSV
Algorithm Name Intended Usage Comment Change Controller Reference
DEFLATE COMMON Mandatory to implement IESG [RFC8054]