It is a multi-layered approach...
1st
Tight control of foreign ips. Sorry but the ip's that are guilty of spam are predominately from a few countries. This is BEST controlled by the .htaccess file. Block the biggest offenders before they even get to the door.
2nd
Block ANY guest post that tries to post a hyperlink. The ONLY guests that seem to do this are the spammers.
3rd
Use PHPBB to block specific in country ips. The reason for this is to only block the one or two offenders, not the entire class or range.
4th
STOP ALLOWING SPAM REGISTRATIONS! This can be accomplished a number of ways. Capcha (visual verification), renaming any of the variables that are exposed during the registration process (i.e. "IAGREE" is used for the screen used to verify age, this can be changed to something oddball so scripting will break for the spammers, and this is TOTALLY transparent to the end user.)
This approach still allows guests to post, but raises the bar quite a bit for spammers.
or
You could just ignore it and hope it goes away...
Spam attack this morning
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I thank snore dog and the others who are working to get rid of the spam. For notTooTechSavvy folks like me, I am glad there are those who care about keeping this forum dependable and useful. It is one of the few places to get true support and information. The docs and DMEs are not much help! (and I am a health care provider...)
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In case you missed it, the following was posted by Johnny Goodman on Friday, Sept. 1, 2006 at 2:46 pm
Post subject: The Next Step In CPAPtalk.com Spam Control
Post subject: The Next Step In CPAPtalk.com Spam Control
Johnny has indicated he will be implementing new anti-spam tactics on Wednesday, Sept. 6, 2006.johnnygoodman wrote: Greetings CPAPtalkers,
We've been getting hit hard the last few days. Some have said that it is to the point where it is taking away from the forum and I'm inclined to agree. As I went through all the reported spam and deleted it, I saw that the same few IPs were big offenders.
It has been suggested before that we bad IPs of repeat offenders. On Wednesday, we're going to be upgrading our spam guard to allow us to choose a "restrict this IP from visiting CPAPtalk.com".
I think this will improve the situation, if not, we're going to have to consider "type the characters in the image" style spam prevention.
Johnny