User manual

Avira GmbH Avira AntiVir Server/ Professional (UNIX) 7
Self-Integrity Check
Each AntiVir executable binary is signed and performs a self-integrity check during
startup.
2.3 Modules and Operating Mode
The Avira security software consists of the following program components:
• AntiVir Engine
•AntiVir Guard
• AntiVir Command Line Scanner
•Avira Updater
AntiVir Engine
AntiVir Engine essentially represents the scanning and repairing modules of Avira
software. These are also used by the other AntiVir products.
AntiVir Guard
AntiVir Guard runs as a daemon process. It permanently monitors all user access in the
network (on access) and it protects the files against viruses and unwanted programs. It
immediately blocks access to infected files which can be automatically renamed, repaired
or moved.
AntiVir Command Line Scanner
AntiVir CLS can always be launched from the command prompt (on-demand). Infected
files and suspicious macros can be isolated, cleaned or deleted using a number of options.
It can be integrated and used within scripts.
Avira Updater
Avira Updater downloads current updates from the AntiVir web servers and installs them
at regular intervals, manually or automatically. It can also send update notifications by
email. You can update Avira AntiVir entirely or only the scanner.
2.4 System Requirements
Avira AntiVir Server asks for the following minimum system requirements on your
server:
• i386 (Linux) or Sparc (SunOS) processor;
• 200 MB free hard disk space;
• 40 MB temporary disk space;
• 256 MB (512 MB on SunOS) free memory space;
• Linux with glibc; SunOS.
Officially supported distributions for Avira AntiVir Server:
The self-integrity check cannot protect against forgery (e.g. to check if
the complete package is faked) or crafted attacks (e.g. the function
call that performs the self-integrity check is bypassed). Such a
verification has to be performed from outside the package.