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syslog-ng Premium Edition 7.0.12 - 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 python: writing server-style Python sources python-fetcher: writing fetcher-style Python sources 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 python: writing custom Python destinations smtp: Generating SMTP messages (e-mail) from logs splunk-hec: Sending messages to Splunk HTTP Event Collector 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 Client-side failover
Routing messages: log paths, flags, and filters Global options of syslog-ng PE TLS-encrypted message transfer Advanced Log Transfer Protocol Reliability and minimizing the loss of log messages Manipulating messages parser: Parse and segment 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

Upgrading syslog-ng PE

This section describes the possible upgrade paths of syslog-ng PE.

Upgrading from previous syslog-ng PE versions to 7

Upgrading is supported from the following syslog-ng PE versions:

  • syslog-ng PE 6 LTS (6.0.x)

To upgrade an existing syslog-ng PE installation, see Upgrading to syslog-ng PE 7.

Upgrading to syslog-ng PE 7

Purpose:

The following describes how to upgrade to syslog-ng PE 7.

To upgrade to syslog-ng PE 7

  1. Download the new installer package from the Support Portal. Use the same package type as you used for the installation (for example, use the .run package for the upgrade if you have originally installed syslog-ng PE using a .run installer).

  2. Download the new license file from My License Assets.

  3. Install syslog-ng PE and check the warnings. Upgrade the respective parts of your configuration if needed.

  4. On the host where you are running syslog-ng PE in server mode, replace the old license file with the new one.

    		 Caution:

    Hazard of data loss! Without the new license file, syslog-ng PE will run in relay mode, and will not store the incoming messages locally.

  5. Set the version of the configuration file to 7.0.12.

Upgrading syslog-ng PE to other package versions

This scenario is not supported and will fail with the following error messages.

Upgrading from platform-specific package to .run
Upgrading from rpm package to .run package

Unsupported. Installation stops and the following error message is displayed:

Incompatible syslog-ng package already installed

Upgrading from deb package to .run package

Unsupported. Installation stops and the following error message is displayed:

Incompatible syslog-ng package already installed

Upgrading from pkg package to .run package

Unsupported. Installation stops and the following error message is displayed:

Incompatible syslog-ng package already installed to <syslog-ng path>

Upgrading from .run to a platform-specific package

This scenario is not supported and will fail with the following error messages. To replace a .run package with a platform-specific package, create a backup of your configuration and persist files, uninstall the .run package using the --purge option, then install the platform-specific package.

Upgrading from .run package to rpm package

Unsupported. Installation stops and the following error message is displayed:

Incompatible standalone (.run) installer of syslog-ng Premium Edition

 Caution:

Hazard of data loss! Installing rpm package syslog-ng PE on AIX platform is possible even if the upgrade conditions are not met, since the rpm package installs before checking the upgrade conditions and therefore no error message is displayed. This might result in overwriting the old configuration file.

Upgrading from .run package to deb package

Unsupported. Installation stops and the following error message is displayed:

Errors were encountered while processing

Upgrading from .run package to pkg package

Unsupported. Installation stops and the following error message is displayed:

Please remove the conflicting package before installing this package. Installation aborted.

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