[UPDATED 14/7] Emulator Proxy [C#] - People won't find your ip

I made this so people can't find the ip of your website. How it works:

- It gets a socket connection
- It connects to the emulator
- It sends data between the two

Another Update: http://www.mediafire.com/download.php?0qr3036q49rl9qb
- Better security now

Older Versions:

Quote:

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Link: Emulator Proxy by AmirZ.rar
Update: Emulator Proxy by AmirZ.rar

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How to use it:
If you're using phoenix update the last_ip in the database to the ip where the proxy is on and edit the client.php to the proxy ip.

If you want good results you should put like 5 of them on different vps' and use a random host -> session of them in php.
Source is included :)

I love it, if it works it'd be brilliant.

It should work, just test it. The user.cs might be a bit messy but I thought this was the easiest way.

Code:

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        private void SendToSocket(IAsyncResult result)
        {
            try
            {
                emubufflength = emu.EndReceive(result);

                if (emubufflength != 0)
                {
                    socket.BeginSend(emubuff, 0, emubufflength, SocketFlags.None, SentToSocket, null);
                    emubufflength = 0;
                }
            }
            catch
            {
                Disconnect();
            }

            try
            {
                emu.BeginReceive(emubuff, 0, emubuff.Length, 0, SendToSocket, null);
            }
            catch
            {
                Disconnect();
            }
        }

        private void SendToEmu(IAsyncResult result)
        {
            try
            {
                databufflength = socket.EndReceive(result);

                if (packet != "@@BH@" && databufflength != 0)
                {
                    emu.BeginSend(databuff, 0, databufflength, SocketFlags.None, SentToEmu, null);
                    databufflength = 0;
                }
                else
                {
                    Disconnect();
                    return;
                }

                socket.BeginReceive(databuff, 0, databuff.Length, 0, SendToEmu, null);
            }
            catch
            {
                Console.WriteLine(">> Emulator is probably offline, disconnecting..");
                Disconnect();
            }
        }

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The most important part of the code

Wait I have to clean up some parts of the code.

Update: Emulator Proxy by AmirZ.rar

Thank you for this. :cool:

Nice Release!

Three months ago I thought of creating something like it... Great work!

I don't understand how to set this up haha, it would be nice and i wold be greatful if someone could explain little more how to do :p I have been SYN flooded for 5 days now

This means that nothing is impossible, Great work.

Nice.

Also, when one proxy server is down what then?
You might make a ping in it or whatever and when it's down, the php side doesn't choose that one, but a other.
Still, must have multiple servers for that, i think it can be cheap ones :p

Quote:

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Originally Posted by joopie

Nice.

Also, when one proxy server is down what then?
You might make a ping in it or whatever and when it's down, the php side doesn't choose that one, but a other.
Still, must have multiple servers for that, i think it can be cheap ones :p

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Setup multiple proxy servers for redundancy and you'll have no problem.

Quote:

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Originally Posted by joopie

Nice.

Also, when one proxy server is down what then?
You might make a ping in it or whatever and when it's down, the php side doesn't choose that one, but a other.
Still, must have multiple servers for that, i think it can be cheap ones :p

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If this was rewritten in Java, it could be easily run on any VPS. Get a few cheapo linux VPS and you'll be set.

edit : ignore....

Quote:

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Originally Posted by leenster

edit : ignore....

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The idea of this is so that no one will be able to find out your main server IP because you use the proxy IP on the client. You could put like 5 of them so they work together and if one gets attacked the other one comes online or the proxies are picked at random.

Quote:

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Originally Posted by Hejula

The idea of this is so that no one will be able to find out your main server IP because you use the proxy IP on the client. You could put like 5 of them so they work together and if one gets attacked the other one comes online or the proxies are picked at random.

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Yeah i guess you did read my post. My post was based on a situation where Cloudflare was not used... So the IP of the webserver was known. You take the webserver down and the client protection would be useless...... then right when i hit the post button i remembered Cloudflare so my post became useless. That's why i removed it.

Quote:

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Originally Posted by leenster

Yeah i guess you did read my post. My post was based on a situation where Cloudflare was not used... So the IP of the webserver was known. You take the webserver down and the client protection would be useless...... then right when i hit the post button i remembered Cloudflare so my post became useless. That's why i removed it.

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I think it's best practice to host your site on a different server than your emulator. If your emulator's VPS goes down, then your site is still online for you to notify users etc. I use some awesome cPanel hosting that's hosted in NL for my site. I'd love to see someone hit that offline..

Quote:

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Originally Posted by Leon

I think it's best practice to host your site on a different server than your emulator. If your emulator's VPS goes down, then your site is still online for you to notify users etc. I use some awesome cPanel hosting that's hosted in NL for my site. I'd love to see someone hit that offline..

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Hi Leon!

I was wondering is it possible to have the cms on one vps and emu and db on another ? Becouse i have been SYN flooded for a week know and it's starts to get on my nervs. I have a good vps but the attackers are to many. Sorry for asking in this thread. :)

This & CloudFlare (which is properly set-up) could potentially be the end of DDoS, since CloudFlare also hides the IP when pinging etc

Quote:

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Originally Posted by resize

Hi Leon!

I was wondering is it possible to have the cms on one vps and emu and db on another ? Becouse i have been SYN flooded for a week know and it's starts to get on my nervs. I have a good vps but the attackers are to many. Sorry for asking in this thread. :)

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Entirely possibly, you could even just rent a webhost with DDoS protection and then run your server on a VPS, and with this (if it works, haven't tested yet) you should be in the clear.

Funny how I am coding something familiar but far more structured. Suggested to have a look on the source AND MOTHER OF JESUS CHRIST!
Users.cs:
private byte[] databuff = new Byte[100000];
private byte[] emubuff = new Byte[100000];

I just wrote my first C++ code to avoid memory fragmentation like this on checking if a process is running. But holy shit! Do you expect to receive 100000 byte (~100KB) with data at each transmition? THIS is what would kill performance. You NEVER use any more than 1024 bytes of that array anyways.

Peace,
- Martin

Quote:

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Originally Posted by maritnmine

Funny how I am coding something familiar but far more structured. Suggested to have a look on the source AND MOTHER OF JESUS CHRIST!
Users.cs:
private byte[] databuff = new Byte[100000];
private byte[] emubuff = new Byte[100000];

I just wrote my first C++ code to avoid memory fragmentation like this on checking if a process is running. But holy shit! Do you expect to receive 100000 byte (~100KB) with data at each transmition? THIS is what would kill performance. You NEVER use any more than 1024 bytes of that array anyways.

Peace,
- Martin

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True words, but I know he isn't a very advanced C# coder.

Sincerely yours,

Josh.

Nice work Azaidi. I've looked through the source it's nice, but the buffers are highly recommended to be lower. :)

Quote:

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Originally Posted by George2000

True words, but I know he isn't a very advanced C# coder.

Sincerely yours,

Josh.

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And neither are you. :):

What person in their right mind would serve an online game through a proxy...?

PS; if this is to "try and hide your IP", I hope you're aware that proxy servers are usually much weaker than your normal server, so this is pretty pointless, especially if you have to fuck about with changing proxy settings everywhere

Just asking, what would be a better databuffer for emu and client?

Quote:

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Originally Posted by azaidi

Just asking, what would be a better databuffer for emu and client?

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512 bytes. :D:

Quote:

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Originally Posted by Quackster

512 bytes. :D:

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Emulator Proxy by AmirZ - Update.rar

Improved stability, and you can set the bytes in the config now.

inb4 Matty replies.