BIND Address already in use

[Srikrishna Murthy Annam]

While i am installing R12.2 apps, i see the following errors in the logs ....

14/02/10 02:23:13 [4] ONS server initiated
14/02/10 02:23:13 [2] BIND (Address already in use)
14/02/10 02:23:13 [2] 172.16.128.14:6002 - listener BIND failed
14/02/10 02:23:13 [4] Listener thread -236999824: 172.16.128.14:6002 (0x404) terminating
14/02/10 02:23:13 [1] Local listener terminated
14/02/10 02:23:24 [4] ONS server initiated
14/02/10 02:23:24 [2] BIND (Address already in use)
14/02/10 02:23:24 [2] 172.16.128.14:6002 - listener BIND failed
14/02/10 02:23:24 [4] Listener thread -236999824: 172.16.128.14:6002 (0x404) terminating
14/02/10 02:23:24 [1] Local listener terminated

To address this issue, perform the following steps before installing or upgrading:

Check if the port 6000 is being used ("netstat -a | grep 6000")
If so, you should disable the graphics console login process on the Linux server. This can be accomplished 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")
Modify /etc/inittab by changing "id:5:initdefault:" to "id:3:initdefault:"
Run "/sbin/init 3" to restart dtlogin