8 Replies Latest reply: Jan 31, 2013 9:13 AM by yetche RSS

    Oracle RAC on OEL

    971394
      hi all,
      I got the error while trying to ssh from rac1 to rac2.
      Could not resolve hostname: Name or service not known
      how can i fix this.?
        • 1. Re: Oracle RAC on OEL
          895889
          Please make sure that sshd is listening on that port.
          • 2. Re: Oracle RAC on OEL
            Niket Kumar
            check enteries in /etc/hosts file...

            check below link for rac installation this will help you make ssh connectivity....

            http://www.oracle-base.com/articles/rac/articles-rac.php
            • 3. Re: Oracle RAC on OEL
              949291
              Check that whether rac1 and rac2 are able to ping each other or not. also check /etc/hosts file and result of hostname command
              • 4. Re: Oracle RAC on OEL
                ora_tech
                Hi,
                I got the error while trying to ssh from rac1 to rac2.
                Could not resolve hostname: Name or service not known
                how can i fix this.?
                => Which version of RAC you are Installing?

                1) Make sure that rac1 and rac2 are able to ping with each other.
                2) Make sure no firewall in between this server
                3) check /etc/hosts files contains proper values.

                thanks,
                X A H E E R
                • 5. Re: Oracle RAC on OEL
                  JaydeepNandy
                  1. Which version are you installing?
                  2. Did you cross check the prerequisites and certification matrix against it?
                  3. Please substitute the node names with appropriate values being used, and share the output:

                  cd Grid-Infra-Stage-Directory
                  ./runcluvfy.sh stage -pre crsinst -n node1,node2,...node<n> -verbose

                  Thanks.
                  • 6. Re: Oracle RAC on OEL
                    LaserSoft
                    Hi,

                    Check the following :

                    1. Certification Matrix for 11g R2 for OEL versions.
                    2. Any Firewall enabled
                    3. Before installing, check all the per-requisites
                    4. DNS configuration
                    5. Communication between RAC1 & RAC2 Machines

                    Thanks
                    LaserSoft
                    • 7. Re: Oracle RAC on OEL
                      971394
                      thanks for all replies.

                      Oracle 11g r2 grid infrastructure provides the ssh Setup utilty.
                      cd /grid/sshSetup
                      *./sshUserSetup.sh -user oracle -hosts "rac1 rac2" -advanced -noPromptPassphrase*

                      No such error after this ssh method.

                      that's it.

                      regards
                      sarathi.

                      Edited by: dba_sara on Jan 31, 2013 1:48 AM
                      • 8. Re: Oracle RAC on OEL
                        yetche
                        Hi,

                        Should we understand that your issue is resolved?

                        Thanks