I was playing this private server with my friend, Xerin no problems but then when this guy ninjaturd came in and disconnected, the server got DDos.
Please look into this matter.

It would be useful if you provided proof to such a claim, such as screenshots, logs etc

well i would but, my friend left before i could screenshot anything. :|

A staff member cannot investiage such a case if you don't provide proof. Taking your word isn't enough as you might imagine.

This case won't get anywhere without legitimate evidence.
If this happens again, be sure to take a screenshot (F5 or F8).
For now, there's nothing anyone can do for your lack of providing evidence.

well is there any way to get chat logs from toribash?
Well if there is no way of proving this or fixing this, i guess my friend "Xerin" won't be on toribash for so long anymore.

No, ingame chat logs aren't kept. Thank you for letting us know, though, and make sure to take a screenshot immediately in the future, if this happens again (which we hope it doesn't). If you friend has a screenshot, then PM me, but I'll close this thread for now.