The rshost utility is a process that is responsible for maintaining relay server state information across client requests and RSOE sessions. The rshost utility is also responsible for managing the log file used by the relay server. rshost can either be started automatically by the relay server or started as a Windows service (on Windows only).

The default log file name is ias_relay_server.log. On Windows, this file is located in the directory specified by the temp environment variable. On a graceful shutdown, rshost renames the log file to a file of the form <yymmdd><nn>.olg where <yymmdd> represents the date on which the log file was renamed and <nn> is the sequential version number of the log file for that day.

It is possible to specify the command line that is used by the relay server to start rshost. This allows for changes to the defaults used by rshost. In order to specify a custom command line, set the start property in the options section of the relay server configuration file. For example:

[options]
start = “rshost -o c:\temp\myrshost.log”