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Spam

Posted: Thu Mar 15, 2012 12:46 pm
by jbikker
The amount of spam this forum receives is quickly growing. Also, we had 499 users yesterday, of which 440 never made a single post (or rather: none that got approved). So yesterday I took the liberty to delete all users with zero posts. Clearly, this is risky: perhaps I deleted users that were simply lurking. It did get rid of the 25 birthdays on the frontpage... Also, I noticed that a lot of users registered from the same IP address. I blocked 4 IP addresses, to reduce future flood.

A backup of the forum has been made yesterday, before the purge. Let me know if you want the copy (to prevent a future total black-out and total data loss like we had before).

- Jacco.

Re: Spam

Posted: Thu Mar 15, 2012 3:54 pm
by zsolnai
Thank you. I don't have any posts here (only at the old ompf forum), therefore I hope you don't mind this one to avoid any future deletion. :)

Re: Spam

Posted: Thu Mar 15, 2012 8:19 pm
by Arite
Can I suggest a couple of changes to registration which might reduce spam:
  • Change the CAPTCHA from the default to reCAPTCHA (need to register domain with google, but then should work fine - it's been built into phpBB for a while).
  • Add in a custom profile field for registration - for more info see here:
    http://www.phpbb.com/kb/article/custom- ... mmer-tool/
    Could be something really obvious like "1+1=", or something more involved. Basically it should put off automated registration scripts and the like.
Finally, something I haven't tried but has been shown to work well is the ModSecurity web application firewall. It's an Apache module (not phpBB mod).

Cheers, Arite.

Re: Spam

Posted: Fri Mar 16, 2012 8:28 am
by jbikker
zsolnai wrote:Thank you. I don't have any posts here (only at the old ompf forum), therefore I hope you don't mind this one to avoid any future deletion. :)
No problem. :) Sorry for deleting you!

Re: Spam

Posted: Fri Mar 16, 2012 11:13 am
by admin
Arite wrote:Can I suggest a couple of changes to registration which might reduce spam:
  • Change the CAPTCHA from the default to reCAPTCHA (need to register domain with google, but then should work fine - it's been built into phpBB for a while).
  • Add in a custom profile field for registration - for more info see here:
    http://www.phpbb.com/kb/article/custom- ... mmer-tool/
    Could be something really obvious like "1+1=", or something more involved. Basically it should put off automated registration scripts and the like.
Finally, something I haven't tried but has been shown to work well is the ModSecurity web application firewall. It's an Apache module (not phpBB mod).

Cheers, Arite.
Thanks a lot for your suggestions! I'm not a phpBB expert et al., so this is highly appreciated. reCAPTCHA has been enabled now. I'll check the custom profile field later.

Re: Spam

Posted: Sat Mar 17, 2012 8:27 am
by larsb
So I'll also post here to avoid being deleted again.

Re: Spam

Posted: Sun Mar 18, 2012 5:46 am
by Chris Morris
saving myself as well

Re: Spam

Posted: Thu Mar 29, 2012 4:31 am
by guo
OK. So I have to stop lurking to avoid being deleted again. :)

Re: Spam

Posted: Thu Mar 29, 2012 8:19 am
by dsavi
Same here. :razz:

Re: Spam

Posted: Wed Apr 04, 2012 7:04 pm
by stalker
Another pointless post to prevent future deletion :oops: