Enable server checksum

[SheenBR]

This method will prevent that ANY unofficial game connects to your server.
This methods consists in a simply MD5 CRC(IDK if it is MD5, it is an example) of your game.exe.
So, lets add it to your server.

• What do I have to do?

First, you need to get ur game.exe code. Add these lines to your server hotuk.ini:

*CONNECT_CLIENT_CODE -9999999
*DISCONNECT_CLIENT_BADCODE

Log in.
Eww! I just got dced!! Dont worry.
Open your log file, you should see something like:

2:25:28 - ID your userid ) / Name char name ) / IP ( your IP ) Process Checksum Error ( -111 )( executable path )

That -111 is a ficticial number.

• Correcting the value in hotuk.ini

Now that you know your code (-111), search for that line you added before: *CONNECT_CLIENT_CODE -9999999 and change the -99999 for -111, in that case. Restart your server and log in.
If everything is correctd, you will not be DCed, unless you are using a modifyied, different game. Each game will have a "code", and for every BYTE changed, a new "code" will be generated.

• Advantages

No more mature I enabled games into your server, no skill delay games and that kind of stuff.

• Disadvantage

I haven't seen until far.
​

 

[bobsobol]

• The guide
  You must be registered to see links
  was much better, but it's now been removed.
• You must be registered to see links
  is still good. :s

 

[SheenBR]

well, I havent seen this guide in particular in any thread, so I decided to teach. Its a good, and easy method to add security to your server.

 

[bobsobol]

There where 2 or three up, at around this time last year.

Imri and AirBourn had posted much information (now seems to be missing) and I think Gregoory had a guide on it. (I could be mistaken.

You must be registered to see links

post by Osirus helped rxaicy out, and I think should have gone in the "Tutorials" section, except that at the time we had many other guides in there that people hadn't yet taken down. (like what remains of the SmexyBoyR one)

I know a little while ago, RZ allowed us to delete entire threads we had created... which I think is very unfortunate, because other people contribute to those threads once you start them.

I don't really think it's fair to give the OP the right to delete the work of anyone else who contributes to their thread. :

 

[SheenBR]

That wants to either be put in the Tutorials section or appended to the existing hotuk security thread.

So here it is!

 

[Gregoo]

Yup I explained how to use the checksum at the very beginning of my OllyDbg tutorials (which are offline now )

 

[bobsobol]

Yes Gregoo... and you made you're reasoning quite clear, and I fully understand.

You also took out (at least originally) only your posts, but left threads where others had posted, as Smexy did... but I know there are now entire threads with many contributions from different people which have now gone.

That saddens me greatly. :

 

[Gregoo]

Whatever was posted on the LunarPT dev section will be back as soon as I got time to put it back online.
It's not a definitive situation