Cisco Cisco Content Security Management Appliance M390 User Guide
13-4
Cisco IronPort AsyncOS 8.0 for Security Management User Guide
Chapter 13 Common Administrative Tasks
Placing the Security Management Appliance into a Maintenance State
If you want to perform system maintenance, place the Security Management appliance into the offline
state. The s
state. The s
uspend
and o
ffline
commands put AsyncOS into offline state. The offline state is
characterized by the following:
•
Inbound email connections are not accepted.
•
Outbound email delivery is halted.
•
Log transfers are halted.
•
The CLI remains accessible.
You must enter a delay for the appliance to enter the offline state. The default delay is 30 seconds.
AsyncOS allows open connections to complete during the delay, after which it forcefully closes open
connections. If there are no open connections, the offline state commences immediately.
AsyncOS allows open connections to complete during the delay, after which it forcefully closes open
connections. If there are no open connections, the offline state commences immediately.
Note
The difference between the suspend command and the offline command is that the suspend command
retains its state even after the machine is rebooted. If you issue the suspend command and reboot the
appliance, you must use the resume command to return the system to an online state.
retains its state even after the machine is rebooted. If you issue the suspend command and reboot the
appliance, you must use the resume command to return the system to an online state.
See also:
•
“Suspending Email Delivery,” “Resuming Email Delivery,” “Suspending Receiving,” and
“Resuming Receiving” in the Cisco IronPort AsyncOS for Email Security Advanced User Guide
“Resuming Receiving” in the Cisco IronPort AsyncOS for Email Security Advanced User Guide
The suspend and offline Commands
mail3.example.com> suspend
Enter the number of seconds to wait before abruptly closing connections.
[30]> 45
Waiting for listeners to exit...
Receiving suspended.
Waiting for outgoing deliveries to finish...
Mail delivery suspended.
mail3.example.com> offline
Enter the number of seconds to wait before abruptly closing connections.
[30]> 45
Waiting for listeners to exit...
Receiving suspended.
Waiting for outgoing deliveries to finish...
Mail delivery suspended.
Resuming from an Offline State
The r
esume
command returns AsyncOS to normal operating state after using the suspenddel or suspend
command.