Re: FC6(working 'su -') vs Centos5(failing 'su -')

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At 11:13 AM -0500 6/2/07, Justin W wrote:
>I've just started the process of virtualizing some of my servers into
>one machine. Right now I've been running Fedora releases for my home
>server, but keeping up with release cycles are too hard to do,
>especially when they usually coincide with me being in school. I
>successfully got Centos to run within Fedora using Xen, but now I'm
>having problems with logging in.
>First, root access is allowed directly when I use virt-manager to access
>the xvc0 console. If I `su -' to my user (justin) and then `su -' again
>to root, I am prompted for the password, and once entered, I'm root again.
>If I try the same technique when logging into the system as justin
>through ssh, I'm not allowed to `su -' to root. When I enter the
>password, I am returned with a "incorrect password" message. I know that
>the password being entered is correct. Following is the only logs I
>could find regarding my failed attempt to su to root (from
>/var/log/secure and /var/log/audit/audit.log)
>    May 31 15:04:24 zeus su: pam_unix(su-l:auth): authentication
>    failure; logname=justin uid=1000 euid=0 tty=pts/0 ruser=justin
>    rhost=  user=root
>    type=USER_AUTH msg=audit(1180641866.633:212): user pid=2570 uid=1000
>    auid=1000 subj=user_u:system_r:unconfined_t:s0 msg='PAM:
>    authentication acct=root : exe="/bin/su" (hostname=?, addr=?,
>    terminal=pts/0 res=failed)'

Try booting that VM appending "enforcing=0" to the kernel command line.  If
that helps, then it really is an SELinux issue.

FWIW, I'm "su -"ing to root on CentOS 5 with SELinux disabled.  I may get
around to enabling it someday, but not right now.
TonyN.:'                       <mailto:[email protected]>
      '                              <>

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