D-Link DFL-2500 User Guide - Page 48
Memory Log Receiver, SMTP Event Receiver
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5.2. Log Receivers 29 Feb 5 2000 09:45:23 gateway.ourcompany.com FW: DROP: Subsequent text is dependent on the event that has occurred. In order to facilitate automated processing of all messages, D-Link Firewall writes all log data to a single line of text. All data following the initial text is presented in the format name=value. This enables automatic filters to easily find the values they are looking for without assuming that a specific piece of data is in a specific location in the log entry. In a D-Link firewall, up to 8 Syslog receivers can be configured, and they can be grouped into one or more receiver groups. Compared to the Memory Log Receiver which is introduced next, Syslog receivers can be used for safer and long-term storage of logged events. These log servers provide centralized management of log files, and backup of the files is possible depending on the particular Syslog recipient(s) in use. 5.2.2 Memory Log Receiver D-Link firewalls can act as log receivers with their built-in memories. When memory log receiver is enabled in the firewall, all events will be saved to the log file in the memory, and the most currently generated entries of the file can be displayed to the administrator upon requests. This log file storage is temporary, all contents of the file will be cleaned after reboot of the firewall, and there is no backup. Only one memory log receiver can be configured for a single firewall. 5.2.3 SMTP Event Receiver A unique feature designed for IDS/IDP events logging and alerts is provided by D-Link firewalls, named as SMTP Event Receiver. Upon proper configuration, the firewall is able to log possible intrusions and notifies the administrator by sending e-mail(s) to specific e-mail address(es). For more information about this function, please refer to 19.5 SMTP Log Receiver for IDS Events. D-Link Firewalls User's Guide
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