Kaspersky Lab kaspersky anti-spam 2.0 Manual

A.1.2. The 

ap-process-server 

program 

configuration file 

The  ap-process-server program configuration file includes the configuration 
parameters (keyword and the argument separated by a space, one for each line) 
and the comments. The comments are preceded with the # or by the; sign 

Examples of configuration files: 

FilterPath /usr/local/ap-mailfilter/bin/ap-mailfilter 

FilterParam -a -V 1 -g mailflt:mailflt -K 1 

StartFilters 0 

MaxFilters 20 

MinSpareFilters 0 

PidFile /usr/local/ap-mailfilter/run/ap-process-server.pid 

LogLevel 1 

SysLogFacility Mail 

Listen tcp:127.0.0.1:2255 

Provided below is the description of configuration parameters: 

 – filename of the filtering process executable file. The default 

value is: /usr/local/ap-mailfilter/libexec/ap-mailfilter. 

 – command line parameters sent to the filtering process; see 

para A.2, page 96. The default value is: –V 1. 

 – number of filters that must be started immediately after the 

program is started (prefork). The default value is: 0. 

 – maximum number of filtering processes that may be started by 

the master process. The default value is: 50. 

The  MaxFilters parameter must be setup so that to avoid intensive 
swapping in the system, even at the maximum load. A typical value for 
a server with 1 GB memory – 50; if the major part of the traffic is made 
up by short messages (and therefore the filtering processes consume 
only an insignificant part of the memory resources), this value can be 
increased. 

 – the minimum number of free (spare) filtering processes. 

If this number is less than the specified value, the master process will 
start additional processes. The default value is: 0. 

The  MinSpareFilters  parameter can be used for leveling load peaks 
when the load increases abruptly: if required, the MinSpareFilters 
parameter should be set at the level of 10-20% of the MaxFilters 
parameter.