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Administrator's Guide - Kerio Software Archive

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Chapter 24 Kerberos AuthenticationFigure 24.4Kerberos tickets displayed in Kerbtray24.2 <strong>Kerio</strong> MailServer on LinuxAuthentication against Active DirectoryBefore setting Kerberos user authentication at Linux, it is recommended to check that authenticationagainst the domain functions correctly (check this by logging in the system using anaccount defined in the Active Directory).It is also necessary to ensure the following:1. <strong>Kerio</strong> MailServer’s host uses the domain controller of the Active Directory domain as theprimary DNS server.If the network configuration requires authentication against multiple domain controllersat a time, add all domain controllers where <strong>Kerio</strong> MailServer will be authenticated as DNSservers.2. Time of the <strong>Kerio</strong> MailServer host and the Active Directory must be synchronized.For proper authentication, define the /etc/krb5.conf file.268

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