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тАО07-21-2009 11:00 PM
тАО07-21-2009 11:00 PM
SSH Publickey Authentication Fails
Kernel Version (2.6.9-67.0.0.0.1.ELhugemem)
The following attachment has the information when trying to connect to SSH on the same host before trying to connect to the another host, i am trying to implement RAC on NFS and for this i need this SSH publickey authentication to work fine for the ORACLE software can be installed without any problem.
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тАО07-22-2009 02:41 AM
тАО07-22-2009 02:41 AM
Re: SSH Publickey Authentication Fails
This is almost always ownership and permissions.
/home directory must be owned by target user.
.ssh directory must be owned by target user and have correct permissions.
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тАО07-22-2009 06:45 AM
тАО07-22-2009 06:45 AM
Re: SSH Publickey Authentication Fails
???
> This is almost always [...]
Your psychic powers must be greater than
mine. I've seen other kinds of problems,
such as mismatched key file formats, more
than I have ownership and permission
problems. When I _have_ seen ownership and
permission problems, I've usually seen error
messages which identify them pretty well.
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тАО07-22-2009 03:48 PM
тАО07-22-2009 03:48 PM
Re: SSH Publickey Authentication Fails
Just one more thing to look at.
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тАО07-23-2009 12:15 AM
тАО07-23-2009 12:15 AM
Re: SSH Publickey Authentication Fails
besides of your ssh problem, even if you do not explain what is your target I would never put ORACLE/RAC on NFS!
the biggest issue is (un)reliability of NFS and second one NFS performance. I would be surprised if it was supported by ORACLE at all.
try to looks rather for OCFS (ORACLE cluster file system.
emha.
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тАО07-23-2009 06:20 AM
тАО07-23-2009 06:20 AM
Re: SSH Publickey Authentication Fails
Oracle over NFS is supported by Oracle. It basically uses NFS with DIO to store datafiles. It is tested and supported by Oracle and HP both. If properly set up, it is very reliable.
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тАО07-23-2009 10:57 PM
тАО07-23-2009 10:57 PM
Re: SSH Publickey Authentication Fails
ok, one always learns something new...
could you provide a link where ORACLE explicitly state this?
Because install guide (http://download.oracle.com/docs/cd/B19306_01/install.102/b15674/install_overview.htm#sthref70) says
[CIT]
Oracle Database 10g must be able to verify that writes to a disk are completed successfully. NFS file systems, including file systems on NAS devices, may not be able to guarantee that writes to a disk are completed successfully, and this may lead to possible data file corruption. Oracle recommends that you do not store files on NFS mounted file systems unless the storage vendor and storage device are listed in the Oracle Storage Compatibility Program list. This list is available from the following Web site
[/CIT]
and on the provided link to OSCP there is just a message that OSCP program has been discontinued and is moreless on customer responsibility that he is aware all the possible issues.
emha.
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тАО07-24-2009 08:31 AM
тАО07-24-2009 08:31 AM
Re: SSH Publickey Authentication Fails
http://www.oracle.com/technology/deploy/performance/pdf/directnfsclient_11gr1_twp.pdf
Also, HP has an Oracle-validated product that does just this:
http://h18006.www1.hp.com/products/storage/software/polyserve/fs_utility/oracle/index.html
I would like to hear if the OP has resolved the ssh issues.
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тАО07-24-2009 02:10 PM
тАО07-24-2009 02:10 PM
Re: SSH Publickey Authentication Fails
> resolved the ssh issues.
I'd settle for a clear explanation of what
the original problem was. But my
expectations are low.