Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

An important feature of the Cisco Email Security appliance is its logging capabilities. AsyncOS can 
generate many types of logs, recording varying types of information. Log files contain the records of 
regular activity and errors from various components of the system. This information can be valuable 
when monitoring your Cisco appliance as well as when troubleshooting or checking performance.

Logs are a compact, efficient method of gathering critical information about the email operations of 
AsyncOS. These logs record information regarding activity on your Cisco appliance. The information 
will vary depending upon the log you view, for example, Bounce logs or Delivery logs.

Most logs are recorded in plain text (ASCII) format; however, delivery logs are formatted in binary for 
resource efficiency. The ASCII text information is readable in any text editor.

Cisco offers the M-Series Security Management appliance for centralized reporting and tracking tool for 
logs from multiple Cisco appliances. See your Cisco representative for more information.

A log subscription associates a log type with a name, logging level, and other constraints such as size 
and destination information; multiple subscriptions for the same log type are permitted. 

The log type indicates what information will be recorded within the generated log such as message data, 
system statistics, binary or textual data. You select the log type when creating a log subscription. See 

 for more information.