User`s guide

ERR_READ_TIMEOUT The remote site or network is unreachable; it may be down.
ERR_LIFETIME_EXP The remote site or network may be too slow or down.
ERR_NO_CLIENTS_BIG_OBJ All clients went away before transmission completed and the object is
too big to cache.
ERR_READ_ERROR The remote site or network may be down.
ERR_CLIENT_ABORT Client dropped connection before transmission completed. Squid
fetches the Object according to its settings for `quick_abort'.
ERR_CONNECT_FAIL The remote site or server may be down.
ERR_INVALID_REQ Invalid HTTP request.
ERR_UNSUP_REQ Unsupported request.
ERR_INVALID_URL Invalid URL syntax.
ERR_NO_FDS Out of file descriptors.
ERR_DNS_FAIL DNS name lookup failure.
ERR_NOT_IMPLEMENTED Protocol not supported.
ERR_CANNOT_FETCH The requested URL cannot currently be retrieved.
ERR_NO_RELAY There is no WAIS relay host defined for this cache.
ERR_DISK_IO The system disk is out of space or failing.
ERR_ZERO_SIZE_OBJECT The remote server closed the connection before sending any data.
ERR_FTP_DISABLED This cache is not configured to retrieve FTP objects.
ERR_PROXY_DENIED Access denied. Users must be authenticated before accessing this
cache.
Troubleshooting
The following diagnostic tools should help you troubleshoot most problems. Please read this article before contacting Barracuda Networks
.Technical Support
In this article:
Basic Troubleshooting Tools
Connect to Barracuda Support Servers
Rebooting the System in Recovery Mode
Reboot Options
Barracuda Instant Replacement Service
Basic Troubleshooting Tools
The page provides a suite of tools to help you troubleshoot network connectivity issues that might be impacting ADVANCED > Troubleshooting
the performance of your Barracuda Firewall.
For example, you can test your Barracuda Firewall’s connection to the Barracuda Networks update servers to verify that it can successfully
download the latest Energize Update definitions. You can also ping or telnet to other devices from the Barracuda Firewall, perform dig/NS-lookup,
TCP dump, and perform a trace route from the Barracuda Firewall to any another system.
Connect to Barracuda Support Servers
To let technical support engineers troubleshoot your system, you can initiate a connection between your Barracuda Firewall and the Barracuda
. On the page, in the section, click Networks Technical Support Center ADVANCED > Troubleshooting Support Connection Establish