[syslog-ng-announce] syslog-ng Premium Edition 4.0.1 has been released

devel at balabit.hu devel at balabit.hu
Fri Feb 25 11:11:28 CET 2011

PACKAGE             : syslog-ng Premium Edition
VERSION             : 4.0.1
SUMMARY             : new stable release
DATE                : Feb 24, 2011

Dear syslog-ng User,

We are happy to announce that version 4.0 of the syslog-ng Premium Edition
system logging application has been released.
The news and highlights of this version are summarized in the following


Version 4.0 of syslog-ng PE includes all the new functionality introduced in
the earlier 3.1 and 3.2 feature releases.

For the list of changes between the latest feature release (version 3.2) and
the new stable release, see the end of this e-mail.

Customers who have valid software subscription will be able to access the new
software packages and their new license on the MyBalaBit webpage
(http://www.balabit.com/mybalabit/). Licenses will be made available this month;
you will receive a notification e-mail when your license is ready.

If you would like to try syslog-ng 4.0 but have not purchased software
subscription, register on the MyBalaBit webpage and request a free trial version.

The documentation of syslog-ng 4.0, including the installation and user guides is available in PDF, HTML, and single-page HTML format at:

For details on upgrading and possible upgrade paths, read Section 3.4.,
Upgrading syslog-ng in the The syslog-ng Premium Edition 4.0 Administrator Guide:



Changes between syslog-ng Premium Edition 3.2 and 4.0:

        SQL destination
        * By default, syslog-ng PE commits every log message to the target
          database individually. When the 'explicit-commits' option is enabled,
          messages are committed in batches. This improves the performance, but
          results in some latency, as the messages are not immediately sent to
          the database. The size and frequency of batched commits can be set
          using the 'flush_lines' and 'flush_timeout' parameters.
        * If inserting a log message into the database fails for some reason,
          syslog-ng PE now attempts to insert the log message again. The
          maximal number of retry attempts can be set using the
          'retry_sql_inserts' parameter.

        File source
        * When reading a log message from file and forwarding the message using
          the IETF-syslog message format, syslog-ng PE automatically adds meta
          information about the source file into the 'file at 18372.4' SDATA block.
          The metadata includes the name and size of the file, as well as the
          file position the message was read from.

        New platforms
        * In addition to the already supported platforms, syslog-ng Premium
          Edition now supports the following operating systems and
          - AIX 6.1 on PowerPC
          - FreeBSD 7.1 and 8.0  i386 and amd64
          - RHEL 6.0 and SLES 11.1 on i386 and amd64
          - Solaris 8, Solaris 9, and Solaris 10 on SPARC64

        Mark messages
        * The functionality of syslog-ng's internal MARK messages has been
          reworked and extended. In syslog-ng Premium Edition 4.0, it is
          possible to set different operation modes for MARK messages, for
          example, to disable them altogether, or send them only to destinations
          where there was no traffic, and so on. For details, see The syslog-ng
          Premium Edition 4.0 Administrator Guide.


  Download the latest binaries from:


  Note that to download the binaries, you have to login into your MyBalaBit

  The documentation of the syslog-ng application is available in
  The syslog-ng Premium Edition Dear syslog-ng User, Administrator Guide at:

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