Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

TechLibrary
Navigation
Table of Contents
Guide That Contains This Content
[+] Expand All
[-] Collapse All

    System Basics: System Log Messages Configuration Guide

    Junos OS generates system log messages (also called syslog messages) to record events that occur on the device for routine operations, failure and error conditions, and critical conditions that might require urgent resolution. Each system log message identifies the Junos OS process that generated the message and briefly describes the operation or error that occurred. Use the topics on this page to configure basic system log capabilities.

            

    Junos OS System Basics Configuration Guide

    Configuring System Log Messages for a Single-Chassis System

    Junos OS System Log Configuration Hierarchy

    Junos OS Minimum System Logging Configuration

    Junos OS Default System Log Settings

    Junos OS Platform-Specific Default System Log Messages

    Specifying the Facility and Severity of Messages to Include in the Log

    Directing System Log Messages to a Log File

    Logging Messages in Structured-Data Format

    Directing System Log Messages to a User Terminal

    Directing System Log Messages to the Console

    Directing System Log Messages to a Remote Machine or the Other Routing Engine

    Specifying an Alternative Source Address for System Log Messages

    Changing the Alternative Facility Name for Remote System Log Messages

    System Log Default Facilities for Messages Directed to a Remote Destination

    Junos OS System Log Alternate Facilities for Remote Logging

    Adding a Text String to System Log Messages

    Specifying Log File Size, Number, and Archiving Properties

    Including Priority Information in System Log Messages

    System Log Facility Codes and Numerical Codes Reported in Priority Information

    Including the Year or Millisecond in Timestamps

    Using Regular Expressions to Refine the Set of Logged Messages

    Junos System Log Regular Expression Operators for the match Statement

    Disabling the System Logging of a Facility

    Configuring System Log Messages for a TX Matrix Router

    Configuring System Logging for a TX Matrix Router

    Configuring Message Forwarding to the TX Matrix Router

    Configuring Optional Features for Forwarded Messages on a TX Matrix Router

    Directing Messages to a Remote Destination from the Routing Matrix Based on the TX Matrix Router

    Configuring System Logging Differently on Each T640 Router in a Routing Matrix

    Configuring System Log Messages for a TX Matrix Plus Router

    Configuring System Logging for a TX Matrix Plus Router

    Configuring Message Forwarding to the TX Matrix Plus Router

    Configuring Optional Features for Forwarded Messages on a TX Matrix Plus Router

    Directing Messages to a Remote Destination from the Routing Matrix Based on a TX Matrix Plus Router

    Configuring System Logging Differently on Each T1600 Router in a Routing Matrix

    Examples

    Examples: Configuring System Logging

    Examples: Assigning an Alternative Facility

    Examples: Displaying a Log File

    Examples: Displaying System Log Message Descriptions

    Configuration Statements

    [edit system] Hierarchy Level

    allow-duplicates

    archive (All System Log Files)

    archive (Individual System Log File)

    console (System Logging)

    destination-override

    explicit-priority

    facility-override

    file (System Logging)

    files

    host (System)

    log-prefix (System)

    log-rotate-frequency

    match

    no-remote-trace

    port (Syslog)

    size

    system

    structured-data

    syslog

    time-format

    tracing

    user (System Logging)

    world-readable

    Administrative Commands

    clear log

    Monitoring Commands

    monitor list

    monitor start

    show log

    monitor stop

    Previous Page Next Page