Well I spent some time digging around the configuration of Serendipity. This was spured from my hatred of link spammers. I checked out the apache logs and found all the enteries, but they are all comming from different IP’s (smart bastereds) so IP based blocking is out. I enabled CAPTCHA’s on all comments (sorry, I know its annoying), and made a few additional changes to the spam protection, I’m hoping it will help a bit. And as it turns out DGC is having the same problems.
I also enabled Karma voting, so you can vote on what you think of the articles (++,+,0,-,—).
PS, If you are intrested in the Apache logs from my spamming visitor, I included in the extended body.
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198.50.88.149 - - [20/Feb/2005:01:49:21 -0800] "POST /comment.php?type=trackback&entry_id=1 HTTP/1.0" 200 87<br />
12.172.137.13 - - [20/Feb/2005:02:15:33 -0800] "POST /comment.php?type=trackback&entry_id=2 HTTP/1.1" 200 87<br />
63.241.72.171 - - [20/Feb/2005:03:14:50 -0800] "POST /comment.php?type=trackback&entry_id=3 HTTP/1.0" 200 87<br />
64.0.85.204 - - [20/Feb/2005:04:14:54 -0800] "POST /comment.php?type=trackback&entry_id=4 HTTP/1.1" 200 87<br />
63.230.9.107 - - [20/Feb/2005:05:14:41 -0800] "POST /comment.php?type=trackback&entry_id=5 HTTP/1.0" 200 87<br />
203.144.143.7 - - [20/Feb/2005:06:14:28 -0800] "POST /comment.php?type=trackback&entry_id=6 HTTP/1.1" 200 87<br />
24.73.233.54 - - [20/Feb/2005:07:14:32 -0800] "POST /comment.php?type=trackback&entry_id=7 HTTP/1.0" 200 87<br />
155.207.28.74 - - [20/Feb/2005:08:14:19 -0800] "POST /comment.php?type=trackback&entry_id=8 HTTP/1.0" 200 87<br />
207.102.120.66 - - [20/Feb/2005:09:14:06 -0800] "POST /comment.php?type=trackback&entry_id=9 HTTP/1.1" 200 87<br />
164.8.18.197 - - [20/Feb/2005:10:13:55 -0800] "POST /comment.php?type=trackback&entry_id=10 HTTP/1.1" 200 87<br />
65.86.119.10 - - [20/Feb/2005:11:15:50 -0800] "POST /comment.php?type=trackback&entry_id=11 HTTP/1.0" 200 87<br />
211.128.103.91 - - [20/Feb/2005:12:15:08 -0800] "POST /comment.php?type=trackback&entry_id=12 HTTP/1.1" 200 87<br />
193.83.117.114 - - [20/Feb/2005:13:14:41 -0800] "POST /comment.php?type=trackback&entry_id=13 HTTP/1.0" 200 87<br />
138.87.254.65 - - [20/Feb/2005:14:14:32 -0800] "POST /comment.php?type=trackback&entry_id=14 HTTP/1.0" 200 87<br />
209.233.5.162 - - [20/Feb/2005:15:14:30 -0800] "POST /comment.php?type=trackback&entry_id=15 HTTP/1.1" 200 87<br />
212.241.87.160 - - [20/Feb/2005:16:14:16 -0800] "POST /comment.php?type=trackback&entry_id=16 HTTP/1.1" 200 87<br />
194.47.95.115 - - [20/Feb/2005:17:14:20 -0800] "POST /comment.php?type=trackback&entry_id=17 HTTP/1.1" 200 87<br />
219.122.10.41 - - [20/Feb/2005:18:14:16 -0800] "POST /comment.php?type=trackback&entry_id=18 HTTP/1.1" 200 87<br />
193.231.32.23 - - [20/Feb/2005:19:14:13 -0800] "POST /comment.php?type=trackback&entry_id=19 HTTP/1.0" 200 87<br />
216.139.189.77 - - [20/Feb/2005:20:14:13 -0800] "POST /comment.php?type=trackback&entry_id=20 HTTP/1.0" 200 87<br />
207.102.120.66 - - [20/Feb/2005:21:14:14 -0800] "POST /comment.php?type=trackback&entry_id=21 HTTP/1.1" 200 87<br />
63.241.72.171 - - [20/Feb/2005:22:14:01 -0800] "POST /comment.php?type=trackback&entry_id=22 HTTP/1.0" 200 87<br />
138.251.202.99 - - [20/Feb/2005:23:14:26 -0800] "POST /comment.php?type=trackback&entry_id=23 HTTP/1.1" 200 87<br />
148.244.150.58 - - [21/Feb/2005:00:14:15 -0800] "POST /comment.php?type=trackback&entry_id=24 HTTP/1.0" 200 87<br />
134.75.217.55 - - [21/Feb/2005:01:14:26 -0800] "POST /comment.php?type=trackback&entry_id=25 HTTP/1.0" 200 87<br />
200.77.144.246 - - [21/Feb/2005:02:14:32 -0800] "POST /comment.php?type=trackback&entry_id=26 HTTP/1.0" 200 87<br />
203.97.97.131 - - [21/Feb/2005:03:14:26 -0800] "POST /comment.php?type=trackback&entry_id=27 HTTP/1.0" 200 87<br />
203.97.97.131 - - [21/Feb/2005:04:14:14 -0800] "POST /comment.php?type=trackback&entry_id=28 HTTP/1.0" 200 87<br />
164.8.18.197 - - [21/Feb/2005:05:14:10 -0800] "POST /comment.php?type=trackback&entry_id=29 HTTP/1.1" 200 87<br />
195.208.252.173 - - [21/Feb/2005:06:14:15 -0800] "POST /comment.php?type=trackback&entry_id=30 HTTP/1.1" 200 87<br />
66.47.217.98 - - [21/Feb/2005:07:16:19 -0800] "POST /comment.php?type=trackback&entry_id=31 HTTP/1.1" 200 87<br />
152.84.253.161 - - [21/Feb/2005:08:16:47 -0800] "POST /comment.php?type=trackback&entry_id=32 HTTP/1.1" 200 87<br />
200.115.137.58 - - [22/Feb/2005:08:15:58 -0800] "POST /comment.php?type=trackback&entry_id=33 HTTP/1.0" 200 87<br />