j"1LAnZuoQdcKCkpDBKQMCgziGMoPC4VQUckMu<div class="post">I just shut down freebitcoins.appspot.com; it looks like somebody in Spain is being a jerk and getting a new IP address, bitcoin address, and solving the captcha. Over and over and over again:<br/><br/><div class="codeheader">Code:</div><div class="code">79.154.133.217 - - [04/Aug/2010:12:46:55 -0700]<br/>"POST / HTTP/1.1" 200 1294 "https://freebitcoins.appspot.com/"<br/>"Opera/9.80 (Windows NT 6.0; U; es-LA) Presto/2.6.30 Version/10.60,gzip(gfe)"<br/><br/>79.146.112.13 - - [04/Aug/2010:12:45:20 -0700]<br/>"POST / HTTP/1.1" 200 1294 "https://freebitcoins.appspot.com/"<br/>"Opera/9.80 (Windows NT 6.0; U; es-LA) Presto/2.6.30 Version/10.60,gzip(gfe)"<br/><br/>81.44.159.81 - - [04/Aug/2010:12:42:20 -0700]<br/>"POST / HTTP/1.1" 200 1294 "https://freebitcoins.appspot.com/"<br/>"Opera/9.80 (Windows NT 6.0; U; es-LA) Presto/2.6.30 Version/10.60,gzip(gfe)" </div>Those IP addresses all map to Telefonica de Espana. If it was you: give them back, please: 15VjRaDX9zpbA8LVnbrCAFzrVzN7ixHNsC<br/><br/>Now that 5 bitcoins is worth a fair bit, I'm thinking I need more cheating countermeasures. I can think of four things to try:<br/><br/>1. Rate limit based on the first byte of the IP address (79. or 81. in this case).<br/>2. Rate limit based on the USER-AGENT string ("Opera/9.8..." in this case).<br/>3. Rate limit based on last two domains of reverse DNS lookup of the IP address (rima-tde.net in this case).<br/>4. Make the standard amount given away 0.5 Bitcoins (Bitcoins have gone up 10 times in value since I started the Faucet).<br/><br/>If you get rate limited, you'll get a message that asks you to try again tomorrow.<br/><br/>BitcoinFX: thanks again for the donation to the faucet; I'm going to drain the Faucet below 500 coins temporarily, and will refill it with your donation after the new cheating countermeasures are in place.<br/><br/><br/></div> text/html
https://whatsonchain.com/tx/01fb4a972e55e19ecc613f04a63e1ea8b35fad721cf50a098a1e8140b4415fc9