ProFTPD module mod_load

This module is contained in the mod_load.h and mod_load.c files for ProFTPD 1.2.x, and is not compiled by default. Installation instructions are discussed here. There are also some interesting notes on the usage of this module.

The code for determining load average on a given system is hairy, to say the least. Unfortunately, it is necessary to do it this way, as there is no standard method for extracting such information from the kernel. This module uses code from GNU's make application, which should function properly. If not, please contact the author as soon as possible.

The most current version of mod_load is distributed with the ProFTPD source code.


Please contact TJ Saunders <tj at> with any questions, concerns, or suggestions regarding this module.



Syntax: MaxLoad number|"none" [message]
Default: None
Context: server config, <VirtualHost>, <Global>
Module: mod_load
Compatibility: 1.2.2 and later

The MaxLoad directive configures the server to refuse to accept connections if the system load is at or above the configured number. An optional message can be specified, which will be displayed to clients who have been rejected. The rejection is also logged.

The number can also be "none", which is used to override any inherited load limits, as from a <Global> context.

The system load is the average number of processes ready to run during the last minute; this number varies from system to system.


  # Reject connections to our busy server
  MaxLoad 10.0 "Server busy, seek elsewhere"


The mod_load module is very straightforward, providing only the single configuration directive.

Display Variables
The following variables are provided by mod_load, and can be used in any Display file e.g. DisplayConnect and DisplayLogin.



To install mod_load, follow the usual steps for using third-party modules in ProFTPD:
  $ ./configure --with-modules=mod_load
  $ make
  $ make install

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