Hi, was asked to report a crash tonight everyone online was booted it happened pretty close to 12:22pm GMT, was allowing logins again at 12:25  We were reset to a few minutes before the crash occurred.  I was in the shop at the time, had just dropped a wand of identify lvl 71.

A player in-game told me that someone was trying to hack the server when this crash happened...

Yep.

Well, we really should monitor the the DM commands with some more log lines...
I already saw here and there a crash invoked by "testing"...

But again: There is no pratical way to "hack the game". Even the core crossfire
or daimonin coder would problems to find vulnerable parts.

The guy who claimed to hack the game was using the program "cheat engine" which
will simply change the client memory status (i think he did not realized the client
is avaible as source and can be "hacked" by him in any way).

Of course you can change the memory of the client so you can see 1000 mithril or
whatever. But thats only a shadow on your box, the server did not cares about your memory
status. In fact the server can do this, for example when a GM is "stealing" an item out of the
inventory. The player will still see it, but try to use it...

You must have in mind that most commercial mmorpgs use their non open clients to do "some work". That can pre-calculating some stuff or something. For example had world of warcraft moved the calculation of teleport to the client, so the server had not to load and handle the whole game world.

That result was then unproved send to the server. As you can imagine, after some time and sessions with cheat engine and other memory manipulating programms, people was able to port to any point, including forbidden areas...

WoW learned their lessons fast and now they removed or controled nearly all.

For us, it will even not work with "wall hacks" because the server is even calc the LoS of a player and is only sending the visible tiles.