Hi,, i hosting Vbulletin Forums and they have an option to read out the Server Load and close if the load is too high, but on plesk i get errors, what can i do ? This is what VBulletin says *NIX Load Limit vBulletin can read the overall load of the server on certain *nix setups (including Linux). This allows vBulletin to determine the load on the server and processor, and to turn away further users if the load becomes too high. If you do not want to use this option, set it to 0. A typical level would be 5.00 for a reasonable warning level.