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syslog-ng Premium Edition 7.0.18 - 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 linux-audit: Collecting messages from Linux audit logs network: Collecting messages using the RFC3164 protocol (network() driver) office365: Fetching logs from Office 365 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 udp-balancer: Receiving UDP messages at very high rate unix-stream, unix-dgram: Collecting messages from UNIX domain sockets windowsevent: Collecting Windows event logs
Sending and storing log messages — destinations and destination drivers
elasticsearch2: Sending messages directly to Elasticsearch version 2.0 or higher (DEPRECATED) elasticsearch-http: Sending messages to Elasticsearch HTTP Event Collector 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 (email) from logs splunk-hec: Sending messages to Splunk HTTP Event Collector sql: Storing messages in an SQL database stackdriver: Sending logs to the Google Stackdriver cloud syslog: Sending messages to a remote logserver using the IETF-syslog protocol syslog-ng(): Forward logs 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 Glossary

Public references of syslog-ng Premium Edition

Among others, the following companies decided to use syslog-ng PE in their production environment:

Supported platforms

The syslog-ng Premium Edition application is officially supported on the following platforms. Note that the following table is for general reference only, and is not always accurate about the supported platforms and options available for specific platforms. The latest version of this table is available at https://syslog-ng.com/log-management-software/supported-platforms. Unless explicitly noted otherwise, the subsequent releases of the platform (for example, Red Hat Enterprise Linux 7 and its update releases like 7.2) are also supported.

Table 1: Platforms supported by syslog-ng Premium Edition

x86 x86_64 SPARC SPARC64 PowerPC IA64
CentOS 6 - ✔ - - - -
CentOS 7 - ✔ - - - -
Debian 8 (jessie) - ✔ - - - -
Oracle Linux 6 - ✔ - - - -
Oracle Linux 7 - ✔ - - - -
Red Hat EL 6 - ✔ - - - -
Red Hat EL 7 - ✔ - - - -
SLES 12 - ✔ - - - -
Ubuntu 16.04 LTS (Xenial Xerus) - ✔ - - - -
Ubuntu 18.04 LTS (Bionic Beaver) - ✔ - - - -

Caution:

Certain sources and destinations are not supported on every platform (particularly, the sql() destination, and the hdfs() destination). For details, see the description of the specific source and destination.

 Caution:

If you are planning to use Python in syslog-ng PE (for example, Python parser or Python template function) on RHEL 6 platform, then you have to manually install Python 2.7. If the Python version on the machine is not 2.7, you will receive a similar error message during startup:

[2017-07-27T13:42:03.606679] Reading shared object for a candidate module: path='/opt/syslog-ng/lib/syslog-ng', fname='mod-python.so', module='mod-python' [2017-07-27T13:42:03.606994] Error opening plugin module: module='mod-python', error='libpython2.7.so.1.0: cannot open shared object file: No such file or directory'

For details about the syslog-ng Agent for Windows application, see the syslog-ng Agent for Windows documentation. For an agent-less solution, see the list of supported platforms.

For using syslog-ng PE on other platforms (for example, AIX, FreeBSD, HP-UX, Solaris, Microsoft Windows), see the list of supported platforms in the syslog-ng PE version 6 Administration Guide.

Certified packages

Starting from version 4.0, syslog-ng Premium Edition is Novell Ready certified for the following platforms:

  • SUSE Linux Enterprise Server 10 on the x86 and x86_64 AMD64 & Intel EM64T architectures

  • SUSE Linux Enterprise Server 11 on the x86 and x86_64 AMD64 & Intel EM64T architectures

Starting from version 4.0, syslog-ng Premium Edition is RedHat Ready certified for the following platforms:

  • Red Hat Enterprise Linux 2.1 on the x86 architecture

  • Red Hat Enterprise Linux 3 on the x86_64 AMD64 & Intel EM64T architecture

  • Red Hat Enterprise Linux 4 on the x86 and x86_64 AMD64 & Intel EM64T architectures

  • Red Hat Enterprise Linux 5 on the x86 and x86_64 AMD64 & Intel EM64T architectures

  • Red Hat Enterprise Linux 6 on the x86 and x86_64 AMD64 & Intel EM64T architectures

Starting from version 5.4, syslog-ng Premium Edition is MapR certified.

The concepts of syslog-ng

This chapter discusses the technical concepts of syslog-ng.

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