If you’re finding 404′s in your Apache error logs relating to verify-<other stuff> and notified-<other stuff> such as the below 1.2.3.4 – – [20/Aug/2010:10:20:15 +0100] “GET /verify-AUP?aHR0cDovL3d3dy5sb2FuZmluZGVyLmNvLnVrL2NvbnRhY3QtdXM= HTTP/1.1″ 200 3752 “-” “Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)” It is from a mis-configured [...]

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If you are finding 404′s in your web server logs referring to entries similar to the following /MSOffice/cltreq.asp?UL=1&ACT=4&BUILD=8164&STRMVER=4&CAPREQ=0 it is because someone has Microsoft Office installed, and the discussion bar turned on in Internet Explorer, which is querying your server to see whether it supports web discussions (which it probably doesn’t).

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If you’re noticing the ‘Test Certificate Info’ User-Agent in your SSL access or error logs and wondering what it is, it’s probably based on some sample C++ code from MSDN (MicroSoft Developer Network) http://blogs.msdn.com/b/jpsanders/archive/2009/04/17/how-to-get-certificate-information-using-wininet-apis.aspx Who is actually running this bit of code depends on where it’s coming from.

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