Porno links in the comments - Urgent!

[cream]

Hi

I get everyday a big amount of links to porno sites placed in the comments, I delete them and I have set in configuration the number of lines permitted in the comments and also the number of characters to 0, but I still get them.

What can I do to stop it?

Pls, help! 

cream

[François Keller]

You can use CAPTCHA plugin to prevent spam //http://forum.coppermine-gallery.net/index.php?topic=36319.0

[Joachim Müller]

*yawn*

http://forum.coppermine-gallery.net/index.php?topic=34895.0
http://forum.coppermine-gallery.net/index.php?topic=36958.0
http://forum.coppermine-gallery.net/index.php?topic=36294.0
http://forum.coppermine-gallery.net/index.php?topic=33641.0
http://forum.coppermine-gallery.net/index.php?topic=37546.0
http://forum.coppermine-gallery.net/index.php?topic=35472.0

and many, many similar threads! In the future, search before posting.