The ipbans table has a list of banned IPs, keep in mind, though that this resets when the MySQL server is restarted, so a single user may not be banned forever (people on non-static IPs shouldn't be able to punish the person getting that IP next anyways)

svn path=/trunk/boinc/; revision=13818

html/bt/database/bittorrent_ipbans.sql

@@ -0,0 +1,5 @@
+CREATE TABLE `bittorrent_ipbans` (
+    `ip` varbinary(256) NOT NULL default '',
+    `timestamp` int(14) NOT NULL,
+    PRIMARY KEY  (`ip`)
+) ENGINE=MEMORY COMMENT='Banned IPs and when they can be unbanned (reset when SQL-server restarts)';