The reason MySQL crashed was because he single-handedly filled /tmp partition. I would suggest that he doesn't use /tmp at all and instead uses something like /home/rahul758/tmp or something in his home directory. That way if his scripts are poorly written and start to spew out billions of files again he will only take out his own account rather than the entire server. The upside for him is that he won't get suspended again ... if he wants to avoid suspension, as his six new unsuspension requests posted in a separate thread each every ten minutes or so, would indicate. By the way, if you spam post the same thing over and over like that it won't get anything solved any faster, but it might get your forum account suspended too.