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|NNTP-Ext 3.4.1 NNTP-Posting-Host|
This line is added to the header of a posted article by the server. The contents of the header is either the IP address or the fully qualified domain name of the client host posting the article. The fully qualified domain name should be determined by doing a reverse lookup in the DNS on the IP address of the client. If the client article contains this line, it is removed by the server before acceptance of the article by the Usenet transport system. This header provides some idea of the actual host posting the article as opposed to information in the Sender or From lines that may be present in the article. This is not a fool-proof methodology since reverse lookups in the DNS are vulnerable to certain types of spoofing, but such discussions are outside the scope of this document.
|[Source:"draft-ietf-nntp-imp-02.txt"] [Last Changed:March 1998]|
[Copyright: 1998 S. Barber]