Oracle 11g R2 RAC SSH two node mutual trust peer configuration Permission denied (Publickey,gssapi-with-mic,password)

Issue: When installing the Oracle 11g R2 RAC Grid, configure the two-node SSH trusted peer configuration to be unsuccessful, with the following error message:

------------------------------------------------------------------------

Verifying SSH connectivity have been setup from Rac1 to Rac1

------------------------------------------------------------------------

If you see any other output besides the output of the DATE COMMAND OR IF prompted for A PASSWORD here, IT MEANS SS H SETUP has not BEEN successful.

[email protected] ' s password:

Permission denied, please try again.

Permission denied, please try again.

Permission denied (Publickey,gssapi-with-mic,password).

------------------------------------------------------------------------

The following script is used when configuring SSH peering:

./sshusersetup.sh-user grid-hosts "Rac1 rac2"-advanced-exverify-confirm-nopromptpassphrase

The environment for the Oracle Linux 5.5,RAC two node host name is: Rac1 RAC2.

The original configuration/etc/ssh/sshd_config file is:

# This sshd is compiled with Path=/usr/local/bin:/bin:/usr/bin

# The strategy used for options on the default sshd_config shipped with

# OpenSSH is to specify options with their default value where

# possible, but leave them commented. uncommented Options Change A

# default value.

#Port 22

#Protocol 2,1

Protocol 2

#AddressFamily any

#ListenAddress 0.0.0.0

#ListenAddress::

# Hostkey for protocol version 1

#HostKey/etc/ssh/ssh_host_key

# Hostkeys for protocol version 2

#HostKey/etc/ssh/ssh_host_rsa_key

#HostKey/etc/ssh/ssh_host_dsa_key

# Lifetime and size of ephemeral version 1 server key

#KeyRegenerationInterval 1h

#ServerKeyBits 768

# Logging

# obsoletes Quietmode and Fascistlogging

#SyslogFacility AUTH

Syslogfacility Authpriv

#LogLevel INFO

# Authentication:

#LoginGraceTime 2m

#PermitRootLogin Yes

#StrictModes Yes

#MaxAuthTries 6

#RSAAuthentication Yes

#PubkeyAuthentication Yes

#AuthorizedKeysFile. Ssh/authorized_keys

Also need host keys in/etc/ssh/ssh_known_hosts

#RhostsRSAAuthentication No

# Similar for protocol version 2

#HostbasedAuthentication No

# change-to-yes if you don ' t trust ~/.ssh/known_hosts for

# Rhostsrsaauthentication and Hostbasedauthentication

#IgnoreUserKnownHosts No

# Don ' t read the user ' s ~/.rhosts and ~/.shosts files

#IgnoreRhosts Yes

# To disable tunneled clear text passwords, change to No here!

#PasswordAuthentication Yes

#PermitEmptyPasswords No

Passwordauthentication Yes

# Change to No to disable S/key passwords

#ChallengeResponseAuthentication Yes

Challengeresponseauthentication No

# Kerberos Options

#KerberosAuthentication No

#KerberosOrLocalPasswd Yes

#KerberosTicketCleanup Yes

#KerberosGetAFSToken No

# GSSAPI Options

#GSSAPIAuthentication No

Gssapiauthentication Yes

#GSSAPICleanupCredentials Yes

Gssapicleanupcredentials Yes

# Set this to ' yes ' to enable PAM authentication, account processing,

# and session processing. If This is enabled, PAM authentication would

# be allowed through the challengeresponseauthentication mechanism.

# Depending on your PAM configuration, this may bypass the setting of

# passwordauthentication, Permitemptypasswords, and

# "Permitrootlogin Without-password". If you just want the PAM account and

# session checks to run without PAM authentication and then enable this but set

# Challengeresponseauthentication=no

#UsePAM No

Usepam Yes

Solution:

Based on the error "Permission denied (Publickey,gssapi-with-mic,password)."

Then open the/etc/ssh/sshd_config configuration file, modify the above red configuration

#RSAAuthentication Yes

Pubkeyauthentication Yes

Authorizedkeysfile. Ssh/authorized_keys

Enable PublicKey authentication, and you must ensure that passwordauthentication Yes must be in the state.

Restart the SSH service

Service sshd Restart

And then run the script,

./sshusersetup.sh-user grid-hosts "Rac1 rac2"-advanced-exverify-confirm-nopromptpassphrase

SSH Peer Trust configuration succeeded

This article from "Proud Snow Star scar" blog, declined reprint!

Oracle 11g R2 RAC SSH two node mutual trust peer configuration Permission denied (Publickey,gssapi-with-mic,password)