Cisco Cisco Web Security Appliance S170 Guía Del Usuario
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AsyncOS 9.0 for Cisco Web Security Appliances User Guide
Appendix A Troubleshooting
Hardware Issues
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Also see:
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URL Categories Do Not Block Some FTP Sites
When a native FTP request is transparently redirected to the FTP Proxy, it contains no hostname
information for the FTP server, only its IP address. Because of this, some predefined URL categories
and Web Reputation Filters that have only hostname information will not match native FTP requests,
even if the requests are destined for those servers. If you wish to block access to these sites, you must
create custom URL categories for them using their IP addresses.
information for the FTP server, only its IP address. Because of this, some predefined URL categories
and Web Reputation Filters that have only hostname information will not match native FTP requests,
even if the requests are destined for those servers. If you wish to block access to these sites, you must
create custom URL categories for them using their IP addresses.
Large FTP Transfers Disconnect
If the connection between the FTP Proxy and the FTP server is slow, uploading a large file may take a long
time, particularly when Cisco Data Security Filters are enabled. This can cause the FTP client to time out
before the FTP Proxy uploads the entire file and you may get a failed transaction notice. The transaction
does not fail, however, but continues in the background and will be completed by the FTP Proxy.
time, particularly when Cisco Data Security Filters are enabled. This can cause the FTP client to time out
before the FTP Proxy uploads the entire file and you may get a failed transaction notice. The transaction
does not fail, however, but continues in the background and will be completed by the FTP Proxy.
You can workaround this issue by increasing the appropriate idle timeout value on the FTP client.
Zero Byte File Appears On FTP Servers After File Upload
FTP clients create a zero byte file on FTP servers when the FTP Proxy blocks an upload due to outbound
anti-malware scanning.
anti-malware scanning.
Hardware Issues
Alert: Battery Relearn Timed Out (RAID Event) on 380 or 680 Hardware
This alert may or may not indicate a problem. The battery relearn timeout, in itself, does not mean there
is any problem with the RAID controller. The controller can recover in the subsequent relearn. Please
monitor your email for any other RAID alerts for the next 48 hours, to ensure that this is not the
side-effect of any other problem. If you do not see any other RAID-type alerts from the system, then you
can safely ignore this alert.
is any problem with the RAID controller. The controller can recover in the subsequent relearn. Please
monitor your email for any other RAID alerts for the next 48 hours, to ensure that this is not the
side-effect of any other problem. If you do not see any other RAID-type alerts from the system, then you
can safely ignore this alert.
HTTPS/Decryption/Certificate Problems
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