1) Yes, there is SPAM. 2) Yes, there is a way to get rid of it. 3) this has been discussed before: Subject: Re: SPAM Date: Wed, 10 Mar 2010 10:37:41 +0000 From: Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> Organization: Wacks Wicks Works Newsgroups: openwatcom.users.fortran References: 1 , 2 , 3 , 4 , 5
> > >> I don't recall what the OpenWatcom server's reaction to cancel >> messages is. Forged cancellations is not a route that we really >> should go down, though. >> > I presume you mean "forced cancellations"! > No. I really do mean forged. Cancelling the messages of someone else whose posting one doesn't have direct authority over involves cancel message forgery. See Tim Skirvin's cancel messages FAQ document.
> My NNTP server for OW is - guess what? - openwatcom.org! > That's not the case for other people, remember. This newsgroup hierarchy is carried by many servers. Many people can pick these newsgroups up on their local Usenet servers, run by their ISPs. Your initial message in this thread, for example, passed through Highwinds Media, Robert Joosten's erje.net, straub-nv.de, and Christof Meerwald's servers before it reached me.
> After Easter I will probably have the time to try to set up the > filter, and to remove the already existing SPAM. > Good. You can tell people what regular expressions you come up with for picking out the junk back messages.
> Question: If posts are removed from the master server, would that > automatically remove them from mirrors, or would each mirror's > administrator need to be involved? > Those are false premises. The other servers aren't mirrors, and the server that you use isn't a master. All servers are on an equal footing. This is NetNews. There's no central authority, and each server administrator owns xyr own server sets xyr own policy. Each server administrator sets xyr own policy for honouring cancel messages, too. (This is in M. Skirvin's FAQ document, too. I suggest reading it.)
The best that you can hope for, certainly for a retrospective cleaning going back years, is to convince M. Chapin and server administrators like me (and Jack Troughton, if xe is still around). You almost certainly have no hope of (for example) cleaning all of the junk from in the past half decade or so of back messages in the openwatcom.* hierarchy held on the Usenet servers of Highwinds Media. You certainly have no hope of cleaning anything out of Google Groups' back messages.