Steps to resolve OPMN port conflict

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 To resolve this issue, below steps would be required to perform before installing or upgrading:

  • Check port 6000 is being used (“netstat -a | grep 6000”)
  • Should be disabled the graphics console login process on the Linux server. This can be done by logging in as root and issuing the following commands:

  • Find the process that uses port 6000 by the command “lsof -i TCP:6000”.
  • Use “kill -9” to abort the process found in the previous step
  • Confirm that nothing is listening at port 6000 (“netstat -a | grep 6000”)
      [root@shsdnbty01 ~]# lsof -i TCP:6000
                    COMMAND   PID USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
                        X       11082 root    5u  IPv6  58891      0t0  TCP *:x11 (LISTEN)
                        X       11082 root    6u  IPv4  58892      0t0  TCP *:x11 (LISTEN)
[                       root@shsdnbty01 ~]# kill -9 11082

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