Thank you for purchasing the Dr.Web for UNIX Mail Servers solution. It offers reliable protection of your server from the spread of various types of computer threats by using the most advanced virus detection and neutralization technologies. This improves the quality of services provided by the server.

This manual is intended to help administrators of the servers that run an UNIX OS-like, such as OS of the GNU/Linux family or FreeBSD, to install and use Dr.Web for UNIX Mail Servers version 11.1.

Convention for File Paths

Real paths to files and components depend on the operating system. The document uses the following conventions for directories:

<opt_dir>—directory where main product files are located (including executable files and libraries);

<etc_dir>—directory where the configuration file and a key file are located;

<var_dir>—directory where supporting and temporary product files are located.

Real paths corresponding to the conventions in different operating systems are given in the table below.

OS Type


Real Path















For space considerations, examples use paths for GNU/Linux operating systems. In some places of the document, where it is possible, examples contain real paths for all of the operating systems.