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Bug 1281768 - Man page is incorrect about GSSAPICleanupCredentials default value
Summary: Man page is incorrect about GSSAPICleanupCredentials default value
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: openssh
Version: 7.1
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Jakub Jelen
QA Contact: BaseOS QE Security Team
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-11-13 12:10 UTC by Jan Pazdziora (Red Hat)
Modified: 2015-11-13 12:41 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-11-13 12:41:14 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Jan Pazdziora (Red Hat) 2015-11-13 12:10:59 UTC 
Description of problem:

man sshd_config says the default of GSSAPICleanupCredentials is yes when in fact it is no.

Version-Release number of selected component (if applicable):

openssh-server-6.6.1p1-12.el7_1.x86_64

How reproducible:

Deterministic.

Steps to Reproduce:
1. man sshd_config | grep -A4 GSSAPICleanupCredentials
2. sshd -T | grep -i GSSAPICleanupCredentials
3. grep -i GSSAPICleanupCredentials /etc/ssh/sshd_config

Actual results:

[root@3d64f4ecab6e /]# man sshd_config | grep -A4 GSSAPICleanupCredentials
     GSSAPICleanupCredentials
             Specifies whether to automatically destroy the user's credentials
             cache on logout.  The default is ``yes''.  Note that this option
             applies to protocol version 2 only.

[root@3d64f4ecab6e /]# sshd -T | grep -i GSSAPICleanupCredentials
Could not load host key: /etc/ssh/ssh_host_rsa_key
Could not load host key: /etc/ssh/ssh_host_ecdsa_key
Could not load host key: /etc/ssh/ssh_host_ed25519_key
gssapicleanupcredentials no

[root@3d64f4ecab6e /]# grep -i GSSAPICleanupCredentials /etc/ssh/sshd_config
GSSAPICleanupCredentials no

Expected results:

Either man page saying no, or the default in /etc/ssh/sshd_config being yes.

Additional info:
Comment 1 Petr Lautrbach 2015-11-13 12:41:14 UTC 
It's correct. The man page describes /usr/sbin/sshd defaults, not a value which is set in RHEL's /etc/ssh/sshd_config

# grep -i GSSAPICleanupCredentials /etc/ssh/sshd_config       
#GSSAPICleanupCredentials no

# /usr/sbin/sshd -T | grep gssapicleanupcredentials
gssapicleanupcredentials yes
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