Cisco Cisco Email Security Appliance C160 Mode D'Emploi
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Cisco IronPort AsyncOS 7.6 for Email Daily Management Guide
OL-25138-01
Chapter 5 Logging
Log Subscriptions
Figure 5-3
Log File Rollover Settings for Log Subscriptions
Rollover By File Size
AsyncOS rolls over log files when they reach a maximum file size to prevent them from using too much
disk space. When defining a maximum file size for rollovers, use the suffix
disk space. When defining a maximum file size for rollovers, use the suffix
m
for megabytes and
k
for
kilobytes. For example, enter
10m
if you want AsyncOS to roll over the log file when it reaches 10
megabytes.
Rollover By Time
If you want to schedule rollovers to occur on a regular basis, you can select one of the following time
intervals:
intervals:
•
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. To create a custom time interval for scheduled rollovers, enter the
number of days, hours, and minutes between rollovers using
since the previous rollover. To create a custom time interval for scheduled rollovers, enter the
number of days, hours, and minutes between rollovers using
d
,
h
, and
m
as suffixes.
•
Daily Rollover. AsyncOS performs a rollover every day at a specified time. If you choose a daily
rollover, enter the time of day you want AsyncOS to perform the rollover using the 24-hour format
(HH:MM).
rollover, enter the time of day you want AsyncOS to perform the rollover using the 24-hour format
(HH:MM).
Only the GUI offers the Daily Rollover option. If you want to configure a daily rollover using the
logconfig
command in the CLI, choose the Weekly Rollover option and use an asterisk (*) to
specify that AsyncOS should perform the rollover on every day of the week.
•
Weekly Rollover. AsyncOS performs a rollover on one or more days of the week at a specified time.
For example, you can set up AsyncOS to rollover the log file every Wednesday and Friday at
midnight. To configure a weekly rollover, choose the days of the week to perform the rollover and
the time of day in the 24-hour format (HH:MM).
For example, you can set up AsyncOS to rollover the log file every Wednesday and Friday at
midnight. To configure a weekly rollover, choose the days of the week to perform the rollover and
the time of day in the 24-hour format (HH:MM).
If you are using the CLI, you can use a dash (
-
) to specify a range of days, an asterisk (
*
) to specify
every day of the week, or a comma (
,
) to separate multiple days and times.
shows the settings available for the Weekly Rollover option in the GUI
Figure 5-4
Weekly Log Rollover Settings in the GUI
shows how to use the CLI to roll over the files for a log subscription on Wednesday and Friday
at midnight (
00:00
).