RMAN Restore Failed RMAN-06100: no channel to restore a backup or copy of datafile n

Problem Description
Rman restore command failed with following error.
RMAN-06100: no channel to restore a backup or copy of datafile

RMAN> run {
set newname for database to new;
restore database;
}

Fix OEM emctl Error: Backend WLS or EM application seems to be down

Problem Description
Unable to launch the OEM as it gives error Backend WLS or EM application seems to be down 
Solution Description
Looks like somewhere it is stuck even though it’s process running on the server. We have to stop all related process and refresh properly. Here is the steps.

Fix ORA-15045 ORA-15120 ORA-27090: Unable to reserve kernel resources for as

Error Description
Alter system command fails with ORA-27090: Unable to reserve kernel resources for as

SQL> alter system set db_securefile=PERMITTED scope=both sid='*';
alter system set db_securefile=PERMITTED scope=both sid='*'
*
ERROR at line 1:

How to Install Wireshark in RedHat Linux

These are the basic 3 steps to install wireshark software in RedHat Linux. One of the basic use of wireshark software is we can monitor the port packet transfer to verify the encryption etc.
Note: you will have to enable the xwindows (xming) in your server to pop up the wireshark software.

Fix (wireshark:29484): Pango-WARNING **: failed to choose a font, expect ugly output. engine-type='PangoRenderFc', script='latin'

Error Description:
Wireshark software fails with following error.
# wireshark

(wireshark:29484): Pango-WARNING **: failed to choose a font, expect ugly output. engine-type='PangoRenderFc', script='latin'

Fix DGMGRL Error: ORA-16698: LOG_ARCHIVE_DEST_n parameter set for object to be added

Error Description
Dgmgrl Create configuration command failed with following error

DGMGRL> CREATE CONFIGURATION 'DG_Conf' AS PRIMARY DATABASE IS 'CMLPROD' CONNECT IDENTIFIER IS 'CMLPROD';

Golden Gate ggsci start manager: ERROR: Parameter file mgr.prm does not exist.

Error Description
Oracle GoldenGate ggsci start manager command fails with following error.
[oracle@Node1 gogarep]$ ./ggsci

GGSCI (Node1) 1> start manager
 

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