Bug 1658941 - Add a note about deprecation of DES in RHEL7
Summary: Add a note about deprecation of DES in RHEL7
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: doc-Security_Guide
Version: 7.7
Hardware: Unspecified
OS: Unspecified
Target Milestone: rc
: ---
Assignee: Mirek Jahoda
QA Contact: BaseOS QE Security Team
Depends On:
TreeView+ depends on / blocked
Reported: 2018-12-13 08:39 UTC by Thorsten Scherf
Modified: 2019-07-16 12:30 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2019-07-16 12:30:14 UTC
Target Upstream Version:

Attachments (Terms of Use)

Description Thorsten Scherf 2018-12-13 08:39:41 UTC
Document URL: 

Section Number and Name: 
4.3.7. Securing NFS

Describe the issue: 
In RHEL7 we no longer support DES for Kerberos principal keys. We should add a note to the NFS section to make the deprecation visible for customers setting up secure NFS. 

Suggestions for improvement: 
The version of krb5-libs shipped in Red Hat Enterprise Linux 7 does not support the usage of DES encryption keys in new deployments. There always have been compatibility issues with Microsoft Active Directory and this resurfaced again with the introduction of FAST into Kerberos’s protocol. DES is deprecated and has been left into the product only as a compatibility option (it is disabled by default in fact).

Additional information:

Comment 6 Mirek Jahoda 2019-07-16 12:30:14 UTC
The update has been published on the Customer Portal:

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