Squid修改用户浏览器的Useragent信息

Well, this depends on squid version.
For 2.5-3.1 you can use just header_replace:

Code:

header_replace  User-Agent  Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)

For recent 3.1+ you should change the above, to:

Code:

request_header_access User-Agent deny all
request_header_replace User-Agent Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)

Regards