HTTP Access to vSphere Server Files In most cases, client applications interact with vSphere servers by using the vSphere Web Services SDK. In some cases, direct access to configuration files, log files, and other data on an ESXi or vCenter Server systems is more efficient. Introduction to HTTP AccessESXi and vCenter Server systems support file access using HTTP and secure HTTP. You can use HTTP/HTTPS for the following kinds of access. URL Syntax for HTTP AccessThe URL specification in an HTTP request to a vSphere server includes one of the following keywords, which determines the type of access.