Casio ISA550WBUN3K9 manual Configuring Advanced Anti-Virus Settings

Security Services	7
Configuring Anti-Virus

STEP 5 In the Update Virus Database area, specify how to update the Anti-Virus signatures. You can automatically check for signature updates from Cisco’s signature server every 24 hours or manually check for signature updates at any time by clicking Update. See Updating Anti-Virus Signatures, page 308.

STEP 6 Click Save to apply your settings.

Configuring Advanced Anti-Virus Settings

Use the Advanced Settings page to configure the scan settings.

STEP 1 Click Security Services > Anti-Virus > Advanced Settings.

STEP 2 Maximum File Size to Scan: Enter the maximum file size, from 0 to 10240 kilobytes. Files larger than this size are passed without scanning. Use the default setting, 0, to indicate that there is no limit on the file size.

NOTE: For compressed files, Anti-Virus will scan each file after decompression and bypass virus scanning for the files larger than the maximum file size.

STEP 3 For each protocol, make the desired selections:

•HTTP:

-Check the Optimize Performance box to suspend the Anti-Virus scan for websites with a good reputation. Uncheck the box to scan all sites. This option is available only when Web Reputation Filtering is enabled. For more information, see Configuring Web Reputation Filtering, page 325.

-Check the Disable HTTP Resume box to disable resuming web-based file transfer by using the HTTP protocol when viruses are detected. Uncheck the box to allow resuming web-based file transfers in this situation.

•FTP: Check the Disable FTP Resume box to disable resuming file transfer by using the FTP protocol when viruses are detected. Uncheck the box to enable resuming file transfers in this situation.

STEP 4 Click Save to apply your settings.

Cisco ISA500 Series Integrated Security Appliances Administration Guide 306