A few minutes ago, I just recognized the following in the localhost_access_log:
183.60.48.25 - - [08/Jul/2013:15:15:26 -0400] "CONNECT tcpconn2.tencent.com:443 HTTP/1.1" 400 - and then searched all localhost_access_log files and found more occurrences[1]. This is my first time seeing this type of request, but I assume it is very similar to the "HEAD /..." request attempts by bots/etc. Based on the 400 server response, I assume that i have nothing to worry about here, but it seems as though the same IP address is attempting these 'CONNECT ...' attempts, multiple times per day, almost every day. :( Any advise on how to handle these requests (if necessary) and/or information about these type of 'CONNECT ...' requests would be appreciated. Thanks. [1] https://gist.github.com/smithh032772/5951621