Configuration
Avira GmbH
Avira AntiVir UNIX Server
47
This command activates updates every 2 hours, but performs them 15 minutes
ahead of the set time: 0:45, 2:45, 4:45 and so on. The
-q
parameter states that no
report will be given, see
Options
– Page 49
Starting Internet Update Daemon Automatically
It is important that the Internet Update Daemon starts automatically on every system
start-up. If you have performed the installation as described in
Installing AntiVir
–
Page 16, your system is correctly set.
If Internet Update Daemon has not yet been automatically activated on system start-up:
Reinstall AntiVir with the necessary settings (see
Reinstalling AntiVir
– Page 22).
Verifying Updates Authenticity with GnuPG
GnuPG is a free alternative to the encryption program PGP (Pretty Good Privacy). Using
GnuPG you can verify the authenticity of the AntiVir Updates.
The following steps guide you to activate GnuPG support.
Download GnuPG from the website
http://www.gnupg.org
. Here you can also find
the manual with further information on GnuPG and its features.
Generate your own PGP key pair, as described in the documentation.
Import the AntiVir public PGP key to your key-ring:
gpg --import antivir.gpg
– OR –
Import the AntiVir public key directly from the key server:
gpg --keyserver=wwwkeys.pgp.net --recv-keys 0F821C2E
Display the fingerprint of the key to check that it really is the AntiVir PGP key:
gpg --fingerprint [email protected]
The 40-character fingerprint is displayed.
Check whether the fingerprint corresponds with the one on the AntiVir website
(
http://www.avira.com
).
Sign the AntiVir public key in order to certify its validity:
gpg --sign-key [email protected]
Change to
/bin
subdirectory of the AntiVir installation directory (example):
cd /tmp/antivir-server-prof-<version>/bin
Here you can find the files
antivir
and
antivir.asc
.
Check the signature with
gpg --verify antivir.asc antivir
If you do not get any error message, you can use GnuPG for AntiVir updates.
Activate GnuPG for AntiVir. In
/etc/avupdater.conf
enter the path to GnuPG binaries,
using the option
GnuPGBinary
:
It is highly recommended to use GnuPG.
However, this procedure requires intensive knowledge of UNIX and
GnuPG. In the event of configuration errors, there is a danger of
deactivating AntiVir updates.
These steps must be performed by a user who runs updates on the
computer. Usually it is the user with administrator rights.
You can find more information on GnuPG at
http://www.gnupg.org
