Cisco Cisco Web Security Appliance S660 Guida Utente

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21-8
AsyncOS 8.8 for Cisco Web Security Appliances User Guide
 
Chapter 21      Monitor System Activity Through Logs
  Adding and Editing Log Subscriptions
Rollover by File Size
The maximum file size to which the current log file can grow before it is 
archived and a new log file started. Enter a number between 100 kilobytes 
and 10 gigabytes.
Rollover by Time
The maximum time interval before the current log file is archived and a new 
log file started. The following interval types are available:
None. AsyncOS only performs a rollover when the log file reaches the 
maximum file size.
Custom Time Interval. AsyncOS performs a rollover after a specified 
amount of time has passed since the previous rollover. Specify the 
number of days, hours, minutes, and seconds between rollovers using 
d
h
m
, and 
s
 as suffixes.
Daily Rollover. AsyncOS performs a rollover every day at a specified 
time. Separate multiple times a day using a comma. Use an asterisk (*) 
for the hour to have rollover occur every hour during the day. You can 
also use an asterisk to rollover every minute of an hour.
Weekly Rollover. AsyncOS performs a rollover on one or more days of 
the week at a specified time. 
Log Style
(Access Logs)
Specifies the log format to use, either Squid, Apache, or Squid Details.
Custom Fields
(Access Logs)
Allows you to include custom information in each access log entry.
The syntax for entering format specifiers in the Custom Field is as follows:
<format_specifier_1> <format_specifier_2> ...
For example: 
%a %b %E
You can add tokens before the format specifiers to display descriptive text in 
the access log file. For example:
client_IP %a body_bytes %b error_type %E
where 
client_IP
 is the description token for log format specifier 
%a
, and so 
on. 
File Name
The name of the log files. Current log files are appended with a 
.c
 extension 
and rolled over log files are appended with the file creation timestamp and a 
.s
 extension.
Option
Description