5 Replies Latest reply: Dec 5, 2012 11:47 AM by LaserSoft RSS

    password is asking for ssh during rac instalation on solaris

    user12194321
      Hi,

      os version : solaris 10

      oralce version : oracle 11g

      we are configuring ssh for User Equivalence ,

      We followed the below steps
      from node 1 
      
      ssh-keygen -t rsa
      Generating public/private rsa key pair.
      Enter file in which to save the key (/u01/ora_home/.ssh/id_rsa):
      Enter passphrase (empty for no passphrase):
      Enter same passphrase again:
      Your identification has been saved in /u01/ora_home/.ssh/id_rsa.
      Your public key has been saved in /u01/ora_home/.ssh/id_rsa.pub.
      The key fingerprint is:
      e6:63:c9:71:fe:d1:8f:71:77:70:97:25:2a:ee:a9:33 local1@vzhost1c
      $
      cd /u01/ora_home/.ssh
      $ cat id_rsa.pub >> authorized_keys
      $ chmod 600 authorized_keys
      $ scp authorized_keys node2:/u01/ora_home/.ssh
      still it is prompting the password if we do ssh node2 date

      appreciated for any inputs

      Thanks in advance
        • 1. Re: password is asking for ssh during rac instalation on solaris
          Shivananda Rao
          Hello,

          On both the nodes, node1 and node2 perform:
          ssh-keygen –t rsa (Enter twice)
          ssh-keygen –t dsa (Enter twice)
          Now (from node1) add the generated keys to the ~/.ssh/authorized_keys file
          cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
          cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys
          Then from node1 SSH to node2 twice and add the .rsa and .dsa keys to the “authorized_keys” file that locates in the first node:
          ssh node2 cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
          ssh node2 cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys
          Now copy the “authorized_keys” file from node1 to node2:
          scp ~/.ssh/authorized_keys node2:~/.ssh/authorized_keys
          This should resolve your issue. If you feel that your question has been answered, then please close the thread by providing appropriate points and marking it as answered.
          • 2. Re: password is asking for ssh during rac instalation on solaris
            user12194321
            Hi Sivananda,

            We are able to pass(user equivelence) but we are getting one more error during instalation

            ins-40906 duplicate host name found in the node information table for oracle clusterware install
            can you help on this plz

            Thanks

            Edited by: user12194321 on Nov 30, 2012 4:34 PM

            Edited by: user12194321 on Nov 30, 2012 4:49 PM
            • 3. Re: password is asking for ssh during rac instalation on solaris
              Shivananda Rao
              Hello,
              ins-40906 duplicate host name found in the node information table for oracle clusterware install
              I suspect that at the time of adding the cluster configuration, you might have added node1 which was already available.
              At the step of Cluster configuration, node1 and node1-vip would already be available. You need to add node2 and node2-vip.

              Refer this http://www.oracle-base.com/articles/11g/oracle-db-11gr2-rac-installation-on-ol5-using-vmware-server-2.php where Tim has explained with screen shots making it very simple.
              • 4. Re: password is asking for ssh during rac instalation on solaris
                974842
                The key fingerprint is:
                e6:63:c9:71:fe:d1:8f:71:77:70:97:25:2a:ee:a9:33 local1@vzhost1c

                Its seems to like that your authorized keys are not append pproperly .
                Just check with more command more authorized_keys file having node 1and node 2 enteries as it is a manadatory procedure
                for ex: ssh local1@vzhost1c and must be having local1@vzhost1c entry

                please scp ur authorized key from node2 to node1 and then more autorized kyes must be having both the enteries.

                once u done with this goto node1 execute ssh node1 and ssh node1-priv and then go to node2 ssh node2 and ssh node2-priv

                From this it will not ask for the passwords.
                • 5. Re: password is asking for ssh during rac instalation on solaris
                  LaserSoft
                  Hi,

                  If you have Oracle Metalink Support, There is a step by step document on Oracle 11g R2 on Solaris Platform. The document will check all the pre-requisites.

                  *RAC and Oracle Clusterware Best Practices and Starter Kit (Solaris) [ID 811280.1]*

                  Thanks
                  LaserSoft