Overview

Readers will learn how to adjust the default log size and rotate options.

NOTES & REQUIREMENTS:

Applicable to the latest EdgeOS firmware on all EdgeRouter models. Please see the Related Articles below for more information.

Device used in this article:

EdgeRouter-4 (ER-4)

How to Adjust the Log Size and Rotate Options

CLI: Access the command line interface (CLI). You can do this using the CLI button in the GUI or by using a program such as PuTTY.

The EdgeRouter is automatically set up to rotate the log messages. The default log options can be viewed by running the below command:

cat /etc/logrotate.d/messages
/var/log/messages {
 missingok
 notifempty
 rotate 10
 size=1000k
 postrotate
 invoke-rc.d rsyslog reload >/dev/null
 endscript
}

NOTE: It is recommended to set up a remote syslog server over increasing the log size + files when extensive logging is needed.

Modify the log options by running the commands below:

configure
set system syslog global archive files <nr>
set system syslog global archive size <kbytes>
commit ; save

Intro to Networking - How to Establish a Connection Using SSH