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Enabling Kerberos on SharePoint. Navigate to Central Administration -> Manage Web Applications. Highlight the Web Application you wish to enable Kerberos, then click the Authentication button in the ribbon. Click on the zone (probably ‘Default’). Scroll down to the Claims Authentication Types and select “Negotiate (Kerberos)”.
Can a Kerberos account be associated with a different account?
Otherwise, you will experience Kerberos authentication errors. Before you associate the SPNs with the ASA credential, you have to verify that the target SPNs aren’t already associated with a different account in the forest. The ASA credential must be the only account in the forest with which these SPNs are associated.
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How to configure Kerberos authentication for load balanced client?
Where EXCH2016ASA is the name of the account and the attribute to be modified is msDS-SupportedEncryptionTypes with a decimal value of 28, which enables the following ciphers: RC4-HMAC, AES128-CTS-HMAC-SHA1-96, AES256-CTS-HMAC-SHA1-96. For more information about these cmdlets, see Import-Module and New-ADComputer.
How is NTLM authentication done in SharePoint Server?
NTLM authentication is done in a three-step process known as the “NTLM Handshake”. The first request is normally made anonymously. This is true of Kerberos as well. The site requires authentication, so the SharePoint server responds with a 401 – Unauthorized and a “ WWW-Authenticate: NTLM ” header.
Which is more secure, NTLM or Kerberos?
NTLM authentication is not great. It’s not the fastest. In most cases, that honor would go to Kerberos. It’s not the most secure. Again, Kerberos.
Note: See “other troubleshooting tips” section below for details on the “NTLM Handshake”. I know there’s some documentation out there that suggests that session persistence / affinity / “sticky sessions”, is no longer required with the advent of Distributed Cache in SharePoint 2013 and above.