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Home » Kerio User Forums » Kerio Connect » Authentication Problem of Kerio Connect in Linux (Authentication Problem of Kerio Connect in Linux )

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We are running Kerio Connect mail server on Windows 2008 R2 server. The server is a member server of Windows Active Directory and all the 5000 mail users authenticate themselves through AD. We are planning to migrate from windows to linux platform and testing Kerio Connect in test bed. We have created a test domain ( in Windows 2008 Server and installed Kerio Connect in Red Hat Linux 6 (Kernel 2.6.32-220.el6 x86) and changed the authentication settings in domain. Now Kerio Connect is showing all the users in test domain there were created in Active Directory, but no user is being able to login to webmail. Please help. If Keri Connect runs successfully (with Microsoft Active Directory authentication) in Linux, then we will purchase another 200 user license.

Chandan Munshi
Sr. Manager IT
Rose Valley Group

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I found an error in Debug log: [26/Dec/2012 13:56:24][1849] {auth} Krb5: get_init_creds_password(krbtgt/TEST.COM@TEST.COM, swarup.hait<_at_>TEST.COM): Cannot contact any KDC for requested realm, error code 0x96c73a9c (-1765328228)

Domain name is, username is swarup.hait
Need someone's help asap
Pavel Dobry (Kerio)

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Have you configured Kerberos on your Linux to be able to authenticate into your Windows domain? In file /etc/krb5.conf?
Please read the manual or KnowledgeBase articles at Kerio website for more details.
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