%META:TOPICPARENT{name="ProductComparisonSheet"}% ---++ Operating System Authentication Fact Sheet OpenLink's Multi-Tier drivers provide operating system login for Informix and Ingres users. This is effected by a simple edit to the server-side Session Rules Book. Use the following link to access explicit instructions on the configuration of operating system login. [[http://edit-wiki.usnet.private/dataspace/dav/wiki/UdaWikiWeb/ConfigureOpsysLogin][Configuring Operating System Authentication]]