Syslog; Chapter 40 Syslog; Syslog Overview; What You Can Do - ZyXEL Communications GS1920-24 User Manual

40.1

Syslog

Overview
This chapter explains the syslog screens.
The syslog protocol allows devices to send event notification messages across an IP network to
syslog servers that collect the event messages. A syslog-enabled device can generate a syslog
message and send it to a syslog server.
Syslog is defined in RFC 3164. The RFC defines the packet format, content and system log related
information of syslog messages. Each syslog message has a facility and severity level. The syslog
facility identifies a file in the syslog server. Refer to the documentation of your syslog program for
details. The following table describes the syslog severity levels.
Table 163 Syslog Severity Levels
CODE SEVERITY
0 Emergency: The system is unusable.
1 Alert: Action must be taken immediately.
2 Critical: The system condition is critical.
3 Error: There is an error condition on the system.
4 Warning: There is a warning condition on the system.
5 Notice: There is a normal but significant condition on the system.
6 Informational: The syslog contains an informational message.
7 Debug: The message is intended for debug-level purposes.
40.1.1

What You Can Do

• Use the Syslog Setup screen (Section 40.2 on page 328) to configure the device's system
logging settings.
• Use the Syslog Server Setup screen (Section 40.3 on page 329) to configure a list of external
syslog servers.
40.2

Syslog Setup

Use this screen to configure the device's system logging settings.
Click Management > Syslog in the navigation panel to display this screen.
sends logs to an external syslog server.
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Syslog
The syslog feature