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Dr.Web software products 6.0 for Unix released

December 2, 2010

The Russian anti-virus vendor Doctor Web announced the release of the Dr.Web software products for Unix series 6. Changes have mainly been made to Dr.Web for Unix mail servers to improve protection of mail and simplify its administration. Dr.Web for Unix file servers and Internet-gateways have also undergone improvements.

The new feature that enables load-balancing between several anti-virus daemons run on different hosts improves stability and scalability of Dr.Web 6.0 for Unix mail servers.

Parameters can now be set to restrict the total number and maximum nesting level of MIME-components of a message. The support of Milter 6 used with Postfix and Sendmail has been added.

Now the anti-virus can also scan messages transferred via POP3, POP3s, IMAP and IMAPs. The IP reputation filter has also been introduced to block an IP-address whose reputation is considered poor according to statistics. The quarantine format has been changed; yet the anti-virus now allows users to restrict storage time and size as well as the number of quarantined files.

The score points from anti-spam may now be added to scanning results from other components — the SMTP-server and anti-virus along with the anti-spam play their part in determining if a message is spam to increase efficiency of measures aiming to counter junk mail.

The anti-virus can now be set not to mark emails as spam if the messages that can be classified as unsolicited are sent from a computer connected to the ProtectedNetwork.

Some changes made administration of Dr.Web for Unix mail servers easier. It offers a wider range of command line options for controlling the anti-virus. Additional settings for statistics have been introduced: now anti-virus logs are accessible for users and groups; users now can also view statistical information related to spam, unconditional spam and filtered messages and statistics based on results of anti-virus scanning of attachments. Reports have been redesigned.

User-defined rules are stored in the internal database which now supports groups and aliases.

The SMTP proxy of Dr.Web for Unix mail servers series 6 is able to verify protected domains as well as protected addresses, so recipient addresses that are not on the protected list can be removed during an SMTP session. It also serves as an efficient countermeasure against DHA attacks. The performance of the mail receiving component has been improved.

Dr.Web for Unix mail servers series 6 also provides access to user FAQ.

Dr.Web for Internet-gateways Unix features an improved mechanism that blocks access to malicious web-resources: instead of a banner linked to a bogus site a user is displayed a warning, if a user attempts to visit a site found on the black list, they receive a notification. The product can now run without the anti-virus daemon and block access to web-resources by subjects present in its black list. Besides, the web-interface mime-rule editor that allows users to specify response to mime-objects according to their type has been improved significantly.

Now the anti-virus utilizes the dynamic process pool where request handlers are added and disabled depending on the current workload. The new concept supersedes the old process management mechanism and improves scalability of the program significantly.

User groups and groups and categories comprised of various settings including options to block and allow content make it easier to use the product.

Support of Samba 3.5. has been implemented for Dr.Web for Unix file servers.

Automatic updating of a key file has been implemented for each of the three products.

Dr.Web software products for Unix mail servers, Internet-gateways and file servers are available with Dr.Web Mail Security Suite, Dr.Web Gateway Security Suite and Dr.Web Server Security Suite respectively.

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