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

15
not a full-blown MDA, it is rather a wrapper; the ‘mda_path‘ parameter in this case has the following format:
mda_path=“/usr/lib/sm.bin/sensible-mda“
To reread of newly created NOD32 conguration, enter the following command:
/etc/init.d/nod32d reload
To accomplish the whole procedure, one has to restart the MTA Sendmail.
Note that NOD32LMS/NOD32BMS provides you with the option to dene NOD32 scanning engine parameters
individually for recipient users (resp. recipient domains). In this case it is necessary to pass the information about the
recipient user to nod32mda module using its command line interface. Note that in case you would like to pass any
command line parameter to the whole nod32mda agent it is necessary to prepend the parameter by sentence ‚--‘,
otherwise the parameter will be assumed to be passed to original MDA specied by the ‘mda_path‘ parameter. Thus
for instance to pass command line option --user to nod32mda agent the above discussed parameter ‘A‘ of Sendmail
conguration le has to be dened in a following way:
A=nod32mda-t-Y-a$h-d$u----user$u
With this setting a special section [user], if dened in NOD32 conguration le, will be used by main NOD32 daemon
for scanning.
4.1.2.2. Setting NOD32MDA in Postx MTA
First one has to grab information on the MDA used by Postx. This can be found in Postx conguration le ’/etc/
postx/main.cf’. The Postx authors have written a helper utility ‘postconf‘ to work with the le, so we will use it in this
procedure. Thus by entering command
postconf mailbox_command
you can receive the following information on return:
mailbox_command=maildrop-d“$USER““$EXTENSION“
From the line above you can see that the MDA used by Postx is program called ’maildrop’. In order to replace the
original MDA by nod32mda module, enter the following command
postconf-e’mailbox_command=nod32mda-d“$USER““$EXTENSION“’
Keep in mind that the command line switches used in ’mailbox_command’ after the nod32mda component must
stay the same as in the original conguration le, otherwise the conguration may not work properly. The reason is that
the switches depend on the version of original MDA used by the Postx.
With the above modications you have ensured that all the e-mail messages originally sent to MDA will be catched
by nod32mda module rst. Still there remains to provide that all messages processed by nod32mda will be sent to the
original MDA for further delivery. To do so, just modify parameter ‘mda_path‘ within section [mda] of main NOD32
conguration le. In case of ’maildrop’ MDA the parameter ‘mda_path‘ will be as follows:
mda_path=“/usr/bin/maildrop“
For reread of newly created NOD32 conguration, enter the following command:
/etc/init.d/nod32d reload
To accomplish the whole procedure, one has to restart the MTA Postx.
Note that NOD32LMS/NOD32BMS provides you with the option to dene NOD32 scanning engine parameters
individually for recipient users (resp. recipient domains). In this case it is necessary to pass the information about the
chapter 4 / Integration with E-mail Messaging System

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