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+.\" ========================================================================
+.\"
+.IX Title "PERL-NOCEM 8"
+.TH PERL-NOCEM 8 "2008-04-06" "INN 2.4.4" "InterNetNews Documentation"
+.SH "NAME"
+perl\-nocem \- A NoCeM\-on\-spool implementation for INN\ 2.x
+.SH "SYNOPSIS"
+.IX Header "SYNOPSIS"
+perl-nocem
+.SH "DESCRIPTION"
+.IX Header "DESCRIPTION"
+NoCeM, which is pronounced \fINo See 'Em\fR, is a protocol enabling
+authenticated third-parties to issue notices which can be used
+to cancel unwanted articles (like spam and articles in moderated
+newsgroups which were not approved by their moderators). It can
+also be used by readers as a \fIthird-party killfile\fR. It is
+intended to eventually replace the protocol for third-party cancel
+messages.
+.PP
+\&\fBperl-nocem\fR processes third\-party, PGP-signed article cancellation
+notices. It is possible not to honour all NoCeM notices but only those
+which are sent by people whom you trust (that is to say if you trust
+the \s-1PGP\s0 key they use to sign their NoCeM notices). Indeed, it is up
+to you to decide whether you wish to honour their notices, depending
+on the criteria they use.
+.PP
+Processing NoCeM notices is easy to set up:
+.IP "1." 4
+Import the keys of the NoCeM issuers you trust in order to check
+the authenticity of their notices. You can do:
+.Sp
+.Vb 1
+\& gpg \-\-no\-default\-keyring \-\-primary\-keyring <pathetc>/pgp/ncmring.gpg \-\-import <key\-file>
+.Ve
+.Sp
+where <pathetc> is the value of the \fIpathetc\fR parameter set in \fIinn.conf\fR
+and <key\-file> the file containing the key(s) to import. The keyring
+must be located in \fIpathetc\fR/pgp/ncmring.gpg (create the directory
+before using \fBgpg\fR). For old PGP-generated keys, you may have to use
+\&\fB\-\-allow\-non\-selfsigned\-uid\fR if they are not properly self\-signed,
+but anyone creating a key really should self-sign the key. Current
+\&\s-1PGP\s0 implementations do this automatically.
+.Sp
+The keys of NoCeM issuers can be found in the web site of \fIThe NoCeM Registry\fR:
+<http://www.xs4all.nl/~rosalind/nocemreg/nocemreg.html>. You can even
+download there a unique file which contains all the keys.
+.IP "2." 4
+Create a \fInocem.ctl\fR config file in \fIpathetc\fR indicating the NoCeM issuers
+and notices you want to follow. This permission file contains lines like:
+.Sp
+.Vb 3
+\& annihilator\-1:*
+\& clewis@ferret.ocunix:mmf
+\& stephane@asynchrone:mmf,openproxy,spam
+.Ve
+.Sp
+This will remove all articles for which the issuer (first part of the line,
+before the colon \f(CW\*(C`:\*(C'\fR) has issued NoCeM notices corresponding to the
+criteria specified after the colon.
+.Sp
+You will also find information about that on the web site of
+\&\fIThe NoCeM Registry\fR.
+.IP "3." 4
+Add to the \fInewsfeeds\fR file an entry like this one in order to feed
+\&\fBperl-nocem\fR the NoCeM notices posted to alt.nocem.misc and
+news.lists.filters:
+.Sp
+.Vb 3
+\& nocem!\e
+\& :!*,alt.nocem.misc,news.lists.filters\e
+\& :Tc,Wf,Ap:<pathbin>/perl\-nocem
+.Ve
+.Sp
+with the correct path to \fBperl-nocem\fR, located in <pathbin>. Then, reload
+the \fInewsfeeds\fR file (\f(CW\*(C`ctlinnd reload newsfeeds 'NoCeM channel feed'\*(C'\fR).
+.Sp
+Note that you should at least carry news.lists.filters on your news
+server (or other newsgroups where NoCeM notices are sent) if you wish
+to process them.
+.IP "4." 4
+Everything should now work. However, do not hesitate to manually test
+\&\fBperl-nocem\fR with a NoCeM notice, using:
+.Sp
+.Vb 1
+\& grephistory '<Message\-ID>' | perl\-nocem
+.Ve
+.Sp
+Indeed, \fBperl-nocem\fR expects tokens on its standard input, and
+\&\fBgrephistory\fR can easily give it the token of a known article,
+thanks to its Message\-ID.
+.PP
+When you have verified that everything works, you can eventually turn
+off regular spam cancels, if you want, not processing any longer
+cancels containing \f(CW\*(C`cyberspam\*(C'\fR in the Path: header (see the
+\&\fIrefusecybercancels\fR parameter in \fIinn.conf\fR).
+.SH "FILES"
+.IX Header "FILES"
+.IP "\fIpathbin\fR/perl\-nocem" 4
+.IX Item "pathbin/perl-nocem"
+The Perl script itself used to process NoCeM notices.
+.IP "\fIpathetc\fR/nocem.ctl" 4
+.IX Item "pathetc/nocem.ctl"
+The configuration file which specifies the NoCeM notices to be processed.
+.IP "\fIpathetc\fR/pgp/ncmring.gpg" 4
+.IX Item "pathetc/pgp/ncmring.gpg"
+The keyring which contains the public keys of trusted NoCeM issuers.
+.SH "BUGS"
+.IX Header "BUGS"
+The Subject: header is not checked for the @@NCM string and there is no
+check for the presence of the References: header.
+.PP
+The Newsgroups: pseudo header is not checked, but this can be done in
+\&\fIlocal_want_cancel_id()\fR.
+.PP
+The Hierarchies: header is ignored.
+.SH "HISTORY"
+.IX Header "HISTORY"
+Copyright 2000 by Miquel van Smoorenburg <miquels@cistron.nl>.
+.PP
+Copyright 2001 by Marco d'Itri <md@linux.it>.
+.PP
+$Id: perl-nocem.8 7733 2008-04-06 09:16:20Z iulius $
+.SH "SEE ALSO"
+.IX Header "SEE ALSO"
+\&\fIgpgv\fR\|(1), \fIgrephistory\fR\|(1), \fIinn.conf\fR\|(5), \fInewsfeeds\fR\|(5), \fIpgp\fR\|(1).
~ian / inn-innduct.git / blobdiff