Chapter 41 Log Setting
AX/DX/EX/PX Series User’s Guide
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The following table describes the fields in this screen.
Table 189   Maintenance > Log Setting
LABEL DESCRIPTION
Syslog Settings
Syslog Logging Slide the switch to the right to enable syslog logging.
Mode Select Remote to have the Zyxel Device send it to an external syslog server.
Select Local File to have the Zyxel Device save the log file on the Zyxel Device itself.
Select Local File and Remote to have the Zyxel Device save the log file on the Zyxel Device itself 
and send it to an external syslog server.
Note: A warning appears upon selecting Remote or Local File and Remote. Just click 
OK to continue.
Syslog Server Enter the server name or IP address of the syslog server that will log the selected categories of 
logs.
UDP Port Enter the port number used by the syslog server.
Enable Syslog 
over TLS
Use Syslog over TLS to securely send logs from the Zyxel Device to the syslog server using TLS 
encryption. 
On the Zyxel Device, first generate a certificate for syslog authentication of the Zyxel Device. 
The CN (Certificate Name) must match the IP address of the Zyxel Device's interface to the 
syslog server. Go to Certificates > Local CA and import a certificate for syslog authentication. 
This is required.
Local Certificate 
Used by Syslog 
Client
Optionally, the Syslog server may also request a certificate from the Zyxel Device for mutual 
authentication. Go to Certificates > Local Certificate and import a Zyxel Device certificate that 
the syslog server can use to verify the Zyxel Device.
E-mail Log Settings
E-mail Log 
Settings
Slide the switch to the right to allow the sending through email the system and security logs to 
the email address specified in Send Log to.
Note: Make sure that the Mail Server Address field is not left blank in the 
Maintenance > E-mail Notifications screen.
Mail Account Select a server specified in Maintenance > E-mail Notifications to send the logs to.
System Log Mail 
Subject
This field allows you to enter a descriptive name for the system log email (for example Zyxel 
System Log). Up to 127 printable characters are allowed for the System Log Mail Subject 
including special characters inside the square brackets [!#%()*+,–./:=?@[]\{}~].
Security Log Mail 
Subject
This field allows you to enter a descriptive name for the security log email (for example Zyxel 
Security Log). Up to 127 printable characters are allowed for the Security Log Mail Subject 
including special characters inside the square brackets [!#%()*+,–./:=?@[]\{}~].
Send Log to This field allows you to enter the log’s designated email recipient. The log’s format is plain text 
file sent as an email attachment.
Send Alarm to This field allows you to enter the alarm’s designated e-mail recipient. The alarm’s format is plain 
text file sent as an email attachment.
Alarm Interval Select the frequency of showing of the alarm.
Active Log
System Log Select the categories of System Logs that you want to record.
Security Log Select the categories of Security Logs that you want to record.
Apply Click Apply to save your changes.
Cancel Click Cancel to restore your previously saved settings.