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syslog-ng Premium Edition 7.0.9 - Administration Guide

Preface Introduction to syslog-ng The concepts of syslog-ng Installing syslog-ng The syslog-ng PE quick-start guide The syslog-ng PE configuration file Collecting log messages — sources and source drivers
How sources work default-network-drivers: Receive and parse common syslog messages internal: Collecting internal messages file: Collecting messages from text files wildcard-file: Collecting messages from multiple text files network: Collecting messages using the RFC3164 protocol (network() driver) osquery: Collect and parse osquery result logs pipe: Collecting messages from named pipes program: Receiving messages from external applications snmptrap: Read Net-SNMP traps sun-streams: Collecting messages on Sun Solaris syslog: Collecting messages using the IETF syslog protocol (syslog() driver) system: Collecting the system-specific log messages of a platform systemd-journal: Collecting messages from the systemd-journal system log storage systemd-syslog: Collecting systemd messages using a socket tcp, tcp6, udp, udp6: Collecting messages from remote hosts using the BSD syslog protocol unix-stream, unix-dgram: Collecting messages from UNIX domain sockets windowsevent: Collecting Windows event logs
Sending and storing log messages — destinations and destination drivers
elasticsearch: Sending messages directly to Elasticsearch version 1.x elasticsearch2: Sending messages directly to Elasticsearch version 2.0 or higher file: Storing messages in plain-text files hdfs: Storing messages on the Hadoop Distributed File System (HDFS) http: Posting messages over HTTP kafka: Publishing messages to Apache Kafka logstore: Storing messages in encrypted files mongodb: Storing messages in a MongoDB database network: Sending messages to a remote log server using the RFC3164 protocol (network() driver) pipe: Sending messages to named pipes program: Sending messages to external applications smtp: Generating SMTP messages (e-mail) from logs Splunk: Sending log messages to Splunk sql: Storing messages in an SQL database syslog: Sending messages to a remote logserver using the IETF-syslog protocol syslog-ng: Forwarding messages and tags to another syslog-ng node tcp, tcp6, udp, udp6: Sending messages to a remote log server using the legacy BSD-syslog protocol (tcp(), udp() drivers) unix-stream, unix-dgram: Sending messages to UNIX domain sockets usertty: Sending messages to a user terminal — usertty() destination
Routing messages: log paths, flags, and filters Global options of syslog-ng PE TLS-encrypted message transfer Reliable Log Transfer Protocol Manipulating messages Parsers and segmenting structured messages Processing message content with a pattern database Correlating log messages Enriching log messages with external data Monitoring statistics and metrics of syslog-ng Multithreading and scaling in syslog-ng PE Troubleshooting syslog-ng Best practices and examples The syslog-ng manual pages About us

Summary of changes

This section lists the changes of The syslog-ng Premium Edition Administrator Guide.

Version 7.0.8 - 7.0.9
Changes in product:
Version 7.0.7 - 7.0.8
Changes in product:
  • A new log path flag, drop-unmatched, has been added. The new flag causes messages to be dropped along a log path when they do not match a filter or are discarded by a parser. For details, see Administration Guide.

  • Support for Elasticsearch's Shield has been removed.

  • Support for POSIX regular expressions has been removed.

    All "posix" regular expressions are automatically switched to "pcre". In case you have POSIX regular expressions configured, ensure that they work with PCRE, and also specify type("pcre") explicitly.

Version 7.0.6 - 7.0.7
Changes in product:
  • The logstore() destination that was available only in syslog-ng PE version 6 is now available in version 7.0.7, allowing you to store messages in encrypted files. For more details, see Administration Guide.

  • You can use password-protected private keys in the network() and syslog() source and destination drivers. For details, see Administration Guide.

Changes in documentation:
Version 7.0.5 - 7.0.6
Changes in product:
  • A new source called windowsevent() has been added. The windowsevent() source receives Windows event logs from the Windows Event Collector tool, which collects event logs from Windows hosts. For more information, see Administration Guide.

  • Added a section about how to unset message fields and groups of fields. For more information, see "Unsetting message fields" in the Administration Guide.

Changes in documentation:
Version 7.0.4 - 7.0.5
Changes in product:
Changes in documentation:
Version 7.0.3 - 7.0.4
Changes in product:
Changes in documentation:
  • Several corrections and editorial changes.

Version 7.0.2 - 7.0.3
Changes in product:
Changes in documentation:
Version 7.0 - 7.0.2
Changes in product:
Changes in documentation:
  • Several corrections and editorial changes.

Version 6 LTS - 7.0
Changes in product:

Several features that are available in syslog-ng Premium Edition 6 LTS are not yet available in syslog-ng PE 7. For a list of features that are available in syslog-ng PE 6 LTS but not in 7 see Release Notes.

Changes in documentation:

Feedback

Any feedback is greatly appreciated, especially on what else this document should cover. General comments, errors found in the text, and any suggestions about how to improve the documentation is also welcome at documentation@balabit.com.

Acknowledgments

One Identity would like to express its gratitude to the syslog-ng users and the syslog-ng community for their invaluable help and support.

Introduction to syslog-ng

This chapter introduces the syslog-ng Premium Edition application in a non-technical manner, discussing how and why is it useful, and the benefits it offers to an existing IT infrastructure.

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