Using Google search returns "We're Sorry" page when going through a ProxySG
Google sorry page is returned when going through a ProxySG
How do I fix my problem with the Google sorry page?
The Google "We're Sorry" page occurs when automated/scripted searching, bot type behavior, malware or a worm, is detected on Google's servers. The ProxySG can appear to be the source of the problem because of network topology and deployment method used. But using Blue Coat's ProxySG by itself should not cause the Google sorry pages to appear. The key to successfully resolving the issue is to find the offending workstation(s), server(s), or network(s) and removing them from the network. Then the devices need to be cleaned of any malware installed on it.
TROUBLESHOOTING TOOLS AND TIPS
1.) Network topology: Transparent deployment / explicit deployment / NATing.
2.) Use access logs and Blue Coat Reporter to determine what device or network is causing the problem.
3.) Review source IP addresses from access logs. If there are source IP addresses that are not from the network, such as external networks, look for an open proxy, a firewall problem, or a weak point into the network.
4.) Packet capture - This can potentially help find the offending workstation/server/network.
5.) Check internally and see if anyone is doing some testing or scripting which involves automated searches/scripts to Google. Items 2 and 4 should help identify if this is the problem.
6.) If you feel that the sorry pages are caused by the volume of traffic on your network and that there is nothing unusual is going on, you can contact Google at http://www.google.com/support/websearch/bin/request.py?contact_type=ban and see if they will lift the sorry page restriction.
Explanation of Google Sorry page from Google proper: http://googleonlinesecurity.blogspot.com/2007/07/reason-behind-were-sorry-message.html
Google Terms of Service: http://www.google.com/accounts/TOS