Figure 76
The Actions tab lets you perform tasks related to the appliance hardware and software.
NOTE: Most changes made in the browser-based management tool are not effective until you click Apply. Changes made in the Actions tab, however, are effective immediately.
Ping Addresses: You can check network connections using appliance ping functions by adding target hosts and port numbers to this list and then clicking Insert. Follow the address with a colon and a port number (an integer value from 0 to 65535) you want to ping. Using a port number lets you check whether a host has HTTP support (port 80), HTTP forward proxy support (port 8080), DNS support (port 53), ICP peer/parent support (port 3130), and so on.
Restart: Shuts down and then restarts the caching system. Configuration settings are retained, but cached objects are removed.
Shut Down: Shuts down the caching system. The hardware remains turned on until manually powered off.
When the appliance has been successfully shut down, a series of three beeps is repeated until the box is powered off.
New Disk: Scans for new disks that the system has not detected automatically.
Factory Settings: Resets the appliance to its original factory configuration, as explained in Restoring Factory Settings. Passwords are retained. If you want to preserve other settings for later use on this or another appliance, see Import/Export Tab.
Password: See Change Password Dialog Box.
Purge Cache: See Purge Cache Dialog Box.
View Debug Log: When an appliance experiences an abnormal shutdown due to a configuration error or other problem, Excelerator logs critical history information associated with the shutdown. Clicking this button displays the log in a separate browser window. You can then save the log file locally, print it, and e-mail it to technical support.
Update Clones: Each appliance stores a clone image that, initially, is the same as the factory image. If the appliance experiences an abnormal shutdown four times within a half-hour period, or if the appliance is restarted six times within a half-hour period, Excelerator assumes the appliance's configuration has become unstable and automatically replaces it with the clone image.
You can overwrite the default clone image with the current configuration by selecting this option.
IMPORTANT: This process reboots the appliance, causing a temporary interruption of services.
Restore from Clones: Selecting this option restores the appliance to the configuration of the clone image (either the original factory clone image or an alternate clone image you have saved using the Update Clones option).
IMPORTANT: This process reboots the appliance, causing a temporary interruption of services. If the image being restored is the original factory clone image, you will also need to reconfigure proxy services on the appliance or use a .NAS file to restore the services. See Restoring the Appliance to the Clone Image and The AUTOLOAD.NAS File.
Path: System > Actions > Password
Figure 77 
IMPORTANT: It is critical that you assign system passwords when initially configuring the appliance. Otherwise, access through Telnet, FTP, and the browser-based management tool is not restricted.
You can specify passwords for two users with different access privileges.
Users logging in using the View user password can view everything in the browser-based management tool
View users cannot access the command line. They can, however execute FTP get commands.
Users logging in using the Config user password have full access to the browser-based tool and the command line interface.
Change: Immediately changes the password for the selected user.
Remove: Removes (sets to null) the password for the selected user.
All ASCII-printable characters can be used in passwords, except the comma (,) and spaces at the beginning or end.
Path: System > Actions > Purge Cache
Figure 78 
You can remove all cached objects from the appliance's cache, or you can perform a limited purging of cached objects based on URL masks. Purging cannot be undone.
Purge All of Cache: This option allows you to purge everything from the appliance's cache.
Purge Selected Objects in Cache: This option allows you to specify URL patterns or masks for the pages or sites whose objects you want to purge. When defining the masks, keep in mind that the appliance interprets everything in the URL mask between the asterisk wildcard (*) and the following delimiter as a wildcard. Delimiters include the forward slash (/), the period (.), and the colon (:) characters.
This option also allows you to purge cache objects whose URL contains a specified query string or cookie. This mask is defined by placing a question mark (?) at the start of the mask, followed by text strings and wildcards as necessary. String comparisons are not case sensitive. For example, ?*=SPORTS will purge all objects with the text "=SPORTS" in any combination of upper- and lower-case letters for "=SPORTS" following the question mark in the URL.
Do Not Purge Pinned Content: You can use this option to purge everything from the appliance's cache except for the content which you have pinned.