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[BitGame777]

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[HanSchultz]

If you are the admin what is the difficulty in finding the IP address of the users and restrict the number of claims a specific IP could claim and so if they are using VPN or TOR you could restrict the number of claims and that is the best way to counter these sort of abuse.

[chixka000]

I have managed a faucet before and usually this are my techniques i have to save the persons IP and the username so everytime theyd signed in their  username must match to the ip when theyve registered and allow only one account per Ip.

[lite]

You should make a rule like, one should deposit at least deposit 1 mBTC or has to wager 10 mBTC or more to claim from the faucet. also keep record of the IPs and if there are more than one account created increase the time of faucet claims by 10 times for each new account created/ban faucet!

[BitFinnese]

You should make a rule like, one should deposit at least deposit 1 mBTC or has to wager 10 mBTC or more to claim from the faucet. also keep record of the IPs and if there are more than one account created increase the time of faucet claims by 10 times for each new account created/ban faucet!

A faucet asking for deposit before someone is able to withdraw can only give a negative impression to the site.  The best thing is to have a a record of IP and have a script that check them and ban users that have multiple accounts on that same IP.  You should be able to tell the IP of a VPN and block them.  But to avoid this kind of work it is better to allow an account per IP as what the early post stated. 

[Papski]

remove the faucet.

[spngebob]

1.) lower faucet reward to 100 satoshi and create leveling system - if user wagers x.xxx BTC than his faucet will raise for xxx satoshi.
2.) raise withdrawal limit
3.) simply disable faucet for non depositors.
4.) i've found this rule in bitsler - "14.1. Only for earnings from faucets, we reserve the right not to authorize withdrawals."

I have managed a faucet before and usually this are my techniques i have to save the persons IP and the username so everytime theyd signed in their  username must match to the ip when theyve registered and allow only one account per Ip.

What about dynamic IP, should he block whole country because of 1 scammer?

[Russtie Beerkan]

Can't you drop cookies on people's browser's and monitor user agents to effectively counter multiple accounts? Is this too advanced?

[Bitfort]

IP detection is the best solution but not always 100% fair so you could possibly lost some fair customers. When I was doing faucets in past I used to fight with someone else having the same IP ( there was timelimit for IP claim, sometimes I've been able to claim, but then twotimes claimed by other person and blocked for me) it was annoing ...  and the bad guys always finds the way.

As faucets should be used to try the game you could modify it to give some sort of game credits instead of real BTCs.

Other solution could be to require phone verification ...  this will lower the abuse but also discourage plenty of users( including me, I want to stay as annonymous as possible when dealing with gamling ) 

[adaseb]

Basically like others have suggested. Either you remove the faucet and replace it was a "play/demo" money so users can test out your site before depositing anything or make it have sometype of min BTC deposit to be able to use the faucet.

Even if they withdraw their deposit without actually gambling at least it will defer some of them due to the high BTC miner fees of sending and receiving transactions.

Your website isn't the only one with this issue. With bitcoins growth its becoming exponetially a high abuse problem.

[AmoreJaz]

personally, i know you can put some scripts on the site to block out all exit nodes and double user /ip/acount/
make sure to advertise that double accounts will be forfeit of both or more accounts if found. 
but, please make a list and publish it so every one else has a chance to use this info also!

[milewilda]

If you are the admin what is the difficulty in finding the IP address of the users and restrict the number of claims a specific IP could claim and so if they are using VPN or TOR you could restrict the number of claims and that is the best way to counter these sort of abuse.

This is the best suggestion so far on which if you are the admin/owner/developer of this gambling site then better to use IP restrictions and putting limitations on max claims per day on this thing they would really be hard thing for them to abuse faucet this problem do normally happen on most gambling sites.

[Bitinity]

I dont really understand why people keep trying on abusing the faucet as I think it is not worth to do so because they are just wasting their time for nothing. The chance to win big (even to meet the minimum withdraw) from faucet is so low. If they thinks that they can win big from 700 sat, actually they can make a minimum deposit to make a better chance to win.
In order to avoid it, as suggested by other members already that IP detection is the simple way to deal with those abusers. Or make a faucet leveling system, give the smallest amount for new users so they will think that the amount is not worth to be abused.

[BTCevo]

Not so long ago, we simplify registration process at our site leaving only the username field...
As a consequence, we are faced with a problem of creating multiple accounts by the same user and abusing faucet (faucet at our site - 0.007 mBTC and only request every 3 hours when balance is zero).
Guys, what solutions do you recommend? 
Thank you!

If you have enough balance to support their faucet, may be you should make level per tier that limit each player that can claim on each day. You might check bitsler or primedice as your reference. Or if you do not have enough balance may be the best thing is limit the by need to have minimal deposit to make sure that their id is an active one

[MinerHQ]

If you are the admin what is the difficulty in finding the IP address of the users and restrict the number of claims a specific IP could claim and so if they are using VPN or TOR you could restrict the number of claims and that is the best way to counter these sort of abuse.

This is the best suggestion so far on which if you are the admin/owner/developer of this gambling site then better to use IP restrictions and putting limitations on max claims per day on this thing they would really be hard thing for them to abuse faucet this problem do normally happen on most gambling sites.

Yes, I also think that using IP address one can restrict multiple claims. But what happens when the user uses good proxies on the same PC to claim with different accounts?

If someone really wants to abuse the system they may try with good proxies as well but in this case above method will fail by just restricting IP and usernames.

I have managed a faucet before and usually this are my techniques i have to save the persons IP and the username so everytime theyd signed in their  username must match to the ip when theyve registered and allow only one account per Ip.

We can't fix one IP per account also because some internet connection IP addresses dynamic each time when I switch off and on people will get different IP addresses. If you fix like that then slowly you will lose your site traffic. As long as one IP address and username restricted for one claim for every one hour should be fine.

[BossMacko]

You can't control people who abuse your site, if you will ban them all then you'll lose potential players in the future, those faucet abusers are still your player. The best thing you can do is make your gambling site more popular in order to get whales that can play your site and get a lot  of profit that can supply your faucet overtime.

[ultrloa]

Not so long ago, we simplify registration process at our site leaving only the username field...
As a consequence, we are faced with a problem of creating multiple accounts by the same user and abusing faucet (faucet at our site - 0.007 mBTC and only request every 3 hours when balance is zero).
Guys, what solutions do you recommend? 
Thank you!

Try to look at on your logs maybe you can detect those guys who have the same IP and blocked them to your site and also try to limit your faucet rewards so that abuser will not came to dig your faucet up.

And my last solution for this is to take out the faucet feature and try to implement a demo mode in your site and maybe by that implementation you can eliminate those guys who intent to rip off the faucet on every site.

[xypos]

Not so long ago, we simplify registration process at our site leaving only the username field...
As a consequence, we are faced with a problem of creating multiple accounts by the same user and abusing faucet (faucet at our site - 0.007 mBTC and only request every 3 hours when balance is zero).
Guys, what solutions do you recommend? 
Thank you!

With the surge in bitcoin price this faucet abuse has become more and more common as i see people getting banned from sites and complaining about it on this forum, and only later do we realise that they're in the wrong here as faucet abusers.

The most obvious thing you can do here is to get a good captcha service. Make the registration more complicated, e.g. one must have a legitimate email to sign up and a confirmation code will be sent to that email(must be services outside of yopmail, etc.).

[Dotcomwriters]

Try to make the faucet only serve 1 IP per 24 hours. Ban Tor nodes, common VPNs and proxies. That may be able to help a bit.

[xypos]

remove the faucet.

Faucet allows new users test our games before depositing, so removing is not the best option...

Removing it is your best bet if you are aiming to destroy all faucet abuse from your site. A lot of good casinos actually don't have faucets at all, since they have a crowdfunded bankroll. For example, just-dice.

Lowering the amount would make it less worthwhile for the abusers as well.

But as i said above, require email verification. Maybe set a limit of how much gambled before you can claim faucet.