On 20/02/2013 8:19 p.m., Sokvantha YOUK wrote:
Dear All, My squid server version 3.3.1-20130219-r12498 runs on Centos 6.3 x64 bits. The server runs with SMP enabled with 3 workers. Most of the time when I type microsoft.com in Chrome, Firefox browser, I got following error message: " Your current User-Agent string appears to be from an automated process, if this is incorrect, please click this link:United States English Microsoft Homepage " May you suggest me what could be the problem? How do I fix it?
I have not seen that one in a long time. They are browser sniffing which is a problem in itself with a high inaccuracy, but may be affected by what you configure Squid to do.
If Squid is removing the User-Agent string, or replacing it with something that looks like a non-browser you will see this. Check your request_header_access and request_header_replace rules.
If you can't find anything in squid.conf playing with the User-Agent header it could be the webserver or browser themselves being broken.
You can get a trace of the headers they are transmitting and receiving through Squid with debug_options 11,2.
Amos