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Linux、FreeBSD/OpenBSD向けのメールサーバー(Sendmail, Qmail, Postfix, Exim) 製品がバージョンアップ(英文)


Kaspersky Anti-Virus 5.5 for Linux, FreeBSD and OpenBSD Mail Servers (MP2) RELEASE NOTES

Released on (2006-04-06)


What's new?

  • Support for the DSN, 8bit-MIME, X-Forward extensions and SMTP as an incoming transfer protocol has been added.

  • The application now features an opportunity to append additional information about the results of anti-virus scanning and processing to the headers of scanned messages.

Product Overview

Kaspersky Anti-Virus 5.5 for Linux, FreeBSD, and OpenBSD Mail Servers (hereinafter referred to as Kaspersky Anti-Virus or the application) provides anti-virus processing of mail traffic and file systems of servers running the Linux, FreeBSD, or OpenBSD operating systems, and using the Sendmail, Postfix, Qmail, or Exim mail programs.

This software application allows the user to:

  • Check for viruses all mounted file systems, as well as incoming and outgoing mail messages, as part of the server SMTP traffic
  • Detect infected, suspicious, corrupted, and password-protected files, as well as files that cannot be scanned.
  • Disinfect infected objects in file systems and mail messages;
  • Quarantine all infected, suspicious, and corrupted objects of the server file system and its mail traffic. For the latter, password-protected files can also be quarantined, as well as files that cannot be scanned.
  • Process mail traffic according to rules preset for groups of senders and recipients.
  • Provide secondary filtering of mail traffic by name and type of attached files, and use individual processing rules for the filtered objects.
  • Notify the sender, recipient, and group administrator about mail messages that contain infected, suspicious, and other objects.
  • Update the anti-virus databases, either using a schedule or on demand, by downloading update files from Kaspersky Lab update servers.
  • Configure Kaspersky Anti-Virus via the web based interface provided by the Webmin program and the application configuration file.

System Requirements

Hardware requirements:
  • Intel Pentium-class processor
  • 32 Mb of RAM or more
  • 100 Mb or more of available hard disk space.
Software requirements:
  • One of the following operating systems:
    • RedHat Linux versions 9.0, Fedora Core 3, Enterprise Linux Advanced Server 3, SuSE Linux (Enterprise Server 9.0 or Professional 9.2), Mandrake Linux version 10.1, Debian GNU/Linux version 3.0 updated (r4)
    • FreeBSD versions 4.10 or 5.3
    • OpenBSD version 3.6
  • One of the following mail systems: Sendmail 8.x, Qmail 1.03, Postfix version snapshot_20000529 or higher, Exim 4.0
  • The which utilityThe Webmin program (www.webmin.com) for remote administration of Kaspersky Anti-Virus.
  • Perl version 5.0 or higher (www.perl.org) for Kaspersky Anti-Virus installation using install.sh

Product Installation & Upgrade

Kaspersky Anti-Virus 5.5 during installation does not overwrite or upgrade
to version 5.5 the existing versions of Kaspersky Anti-Virus. It changes only
files essential for operation of version 5.5; in particular, the installer
removes the settings of earlier (5.0) versions from mail server configuration.
The installer also replaces startup scripts to avoid conflict between aveserver
versions. The setup procedure allows import of settings from previous versions
into version 5.5.

General Issues & Workarounds

  • Automatic removal of Kaspersky Anti-Virus with restoration of the original configuration will be impossible in cases when the product is installed together with Kaspersky Anti-Spam 2.0 and the latter has been installed after Kaspersky Anti-Virus.

  • Proxy Server parameters are not imported in cases, when import of settings from an earlier version has been selected during installation.

  • In cases when the product is installed together with Kaspersky Anti-Spam 2.0 and integrated with postfix, their interaction requires that the kas-pipe and smtpscanner processes must be started by the kluser user. To do so, change the mailft user to kluser in the master.cf configuration file after installation and configuration of the products.

    E.g., replace the line: inet n n n - 20 spawn
   user=mailflt argv=/usr/local/ap-mailfilter/bin/kas-pipe -c /usr/local/ap-mailfilter/etc/kas-pipe-postfix.conf
    with the following line: inet n n n - 20 spawn
   user=kluser argv=/usr/local/ap-mailfilter/bin/kas-pipe -c /usr/local/ap-mailfilter/etc/kas-pipe-postfix.conf
  • If a Mandrake 10.1 system uses security level value higher than normal, you will have to change manually the owner of the directory specified for recording of the log files running the following command after installation:
      chown kluser:klusers /var/log/kav/5.5/

  • In some distributions Exim is by default supplied without LMTP support. Since the number of these modifications is very large and constantly increasing, the operation of Kaspersky Anti-Virus is guaranteed only with the stable official Exim version built using the TRANSPORT_LMTP=yes options in Local/Makefile.

  • In case of integration with Exim in systems based on RHEL-3, you will have to add to the "kav_lmtp_transport" section of the /etc/exim/exim4.conf.listen

    file the following line after installation:

      home_directory = /var/db/kav

  • In case of integration with Exim in systems based on RHEL-3, after installation you will have to modify manually the parameters necessary for Exim server start in the /opt/kav/5.5/kav4mailservers/init.d/kavexim.sh script.
    Namely, the following line:

      $exim_bin -bd -C "${exim_listen_conf}"

    must be replaced, for example, with the line below:

      $exim_bin -q10m -C "${exim_listen_conf}"

    Here the -q (-q10m) parameter value must match the QUEUE parameter value from the Exim configuration file (/etc/sysconfig/exim) used for integration.

  • In case of integration with Exim and if Kaspersky Anti-Spam 3.0 beta 1 has been installed earlier, after installation of this product version the host system will only perform anti-spam checks; anti-virus scanning will not work.

  • Certain issues have been reported for installation of Webmin plug-in modules with Webmin version included into Debian GNU/Linux 3.0 and Mandrakelinux-10.1. A Webmin update is recommended before installing the product. For Mandrakelinux-10.1 installation of Webmin from a tar.gz package available at www.webmin.com is recommended.

  • Names of detected and disinfected viruses appear twice in anti-virus statistics (as detected and cured objects), resulting in incorrect reflection of virus statistics within Webmin.

  • You are advised to use latin letter and digits only in group names in the application configuration file. Other characters may cause problems while using the Webmin plug-in module to configure the application.



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