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Assessment Title
Rule Text
Kerberos encryption types must be configured to prevent the use of DES and RC4 encryption suites.
Description
Discussion Text
Certain encryption types are no longer considered secure. The DES and RC4 encryption suites must not be used for Kerberos encryption.
Note: Removing the previously allowed RC4_HMAC_MD5 encryption suite may have operational impacts and must be thoroughly tested for the environment before changing. This includes but is not limited to parent\child trusts where RC4 is still enabled; selecting "The other domain supports Kerberos AES Encryption" may be required on the domain trusts to allow client communication across the trust relationship.
Note: Removing the previously allowed RC4_HMAC_MD5 encryption suite may have operational impacts and must be thoroughly tested for the environment before changing. This includes but is not limited to parent\child trusts where RC4 is still enabled; selecting "The other domain supports Kerberos AES Encryption" may be required on the domain trusts to allow client communication across the trust relationship.
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