ESET NOD32 ANTIVIRUS - FOR LINUX-BSD MAIL SERVER User Manual

2
Table of contents
1. Introduction ........................................................... 3
2. Installation .............................................................. 5
3. Product’s Roadmap .................................................. 7
4. Integration with E-mailMessaging System ................11
4.1. Scanning of inbound e-mail messages ............................... 13
4.1.1. Renaming the original MDA and its replacement by
NOD3 2MDA ....................................................................
13
4.1.2. Setting of NOD32MDA (in MTA) as MDA........................... 14
4.1.2.1. Setting NOD32MDA in Sendmail MTA ........................... 14
4.1.2.2. Setting NOD32MDA in Postx MTA ............................... 15
4.1.2.3. Setting NOD32MDA in Qmail MTA ................................ 16
4.1.2.4. Setting NOD32MDA in MTA Exim version 3 ................... 17
4.1.2.5. Setting NOD32MDA in MTA Exim version 4 ................... 19
4.2. Scanning of outbound e-mail messages ............................ 20
4.3. Content Filtering in MTA ..................................................... 22
4.3.1. Content ltering in MTA Postx ....................................... 22
4.3.2. Content ltering in MTA Sendmail ................................... 23
4.3.3. Content ltering in MTA Exim 3 ....................................... 23
4.3.4. Content ltering in MTA Exim 4 ....................................... 25
4.3.5. Content ltering in MTA Qmail ........................................ 26
4.4. Alternative methods of content ltering ............................ 27
4.4.1. Scanning e-mail messages using AMaViS........................ 27
4.4.1.1. amavis .......................................................................... 27
4.4.1.2. amavisd ........................................................................ 28
4.4.1.3. amavisd-new ............................................................... 28
5. Important NOD32LMS/NOD32BMSMechanisms ..........31
5.1. User Specic Conguration ................................................. 32
5.2. Handle Object Policy .......................................................... 33
5.3. Black-list and white-list ..................................................... 33
5.4. Samples Submission System .............................................. 35
6. NOD32 System Update andMaintenance ...................37
6.1. Basic concept of NOD32 system update .............................. 38
6.1.1. NOD32 mirror creation..................................................... 38
6.1.2. Generation of NOD32 scanner loading modules .............. 38
6.2. Automatic update of the virus denitions database ........... 39
7. Tips and Tricks .........................................................41
7.1. Dropping messages marked by NOD32
as deleted in MTA Postx ................................................
42
7.2. NOD32LMS/NOD32BMS and TLS support in MTA ................ 42
8. Let us know ............................................................45
NOD32 for Linux/BSD Mail Server, First Edition
Published on 6th December 2006
Copyright © 2006 Eset, s.r.o.
NOD32 for Linux/BSDMail Server was developed by
Eset, s.r.o. For more information visit www.eset.com.
NOD32 for Linux Mail Server was developed in
co-operation with ProWeb Consulting. For more
information visit www.pwc.sk.
All rights reserved. No part of this documentation
may be reproduced, stored in a retrieval system or
transmitted in any form or by any means, electronic,
mechanical, photocopying, recording, scanning, or
otherwise without a permission in writing from the
author.
Eset, s.r.o. reserves the right to change any of the
described application software without prior notice.
NOD32 for Linux/BSD Mail Server

ESET NOD32 ANTIVIRUS - FOR LINUX-BSD MAIL SERVER Specifications

General

Type	Antivirus Software
Supported Operating Systems	Linux, BSD
Email Scanning	Yes
Real-time Protection	Yes
License	Commercial
Purpose	Mail Server Protection
Antivirus Engine	ESET NOD32
Updates	Automatic updates
Management	Remote Management