CincomSmalltalkWiki: Silt Anti-Spam

Silt has some server logic to protect against comment spam, based on settings. It does 3 things:

Comments get turned off for all posts that fall out of the rss feed
There's a comment throttle (no more than one comment from a given IP per N minutes, defaults to 3)
No more than 3 links in a comment.

Anything that fails get archived. They drop into a directory called 'spam' by default.

Also, you can filter referers by providing a file called 'rejects.txt' in the image dir. The file is a CR delimited list of match strings, with lines like this:

*badTextHere*

Alternatively, there is a package in the public repository called Blog-ServletsExtensions, which adds reCAPTCHA to the blog server (Silt-Core 1.139). Over six months of use so far has proved this to be much more reliable. See the package comment for details.