Bug 1658941

Summary:	Add a note about deprecation of DES in RHEL7
Product:	Red Hat Enterprise Linux 7	Reporter:	Thorsten Scherf <tscherf>
Component:	doc-Security_Guide	Assignee:	Mirek Jahoda <mjahoda>
Status:	CLOSED CURRENTRELEASE	QA Contact:	BaseOS QE Security Team <qe-baseos-security>
Severity:	unspecified	Docs Contact:
Priority:	medium
Version:	7.7	CC:	rharwood, rhel-docs
Target Milestone:	rc	Keywords:	Documentation
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Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Last Closed:	2019-07-16 12:30:14 UTC	Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Description Thorsten Scherf 2018-12-13 08:39:41 UTC

Document URL: 
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/security_guide/sec-securing_services#sec-Securing_NFS

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:
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/security_guide/sec-securing_services#sec-Securing_NFS