Enable SSH for user equivalency in RAC and EBS

If your Linux version 8 modify the scp as below:

mv /usr/bin/scp /usr/bin/scp.orig

create a new file /usr/bin/scp contains below line:
/usr/bin/scp.orig -T $*

Change the file permission
chmod   555 /usr/bin/scp
then run below commands

For database and RAC
$ORACLH_HOME/deinstall/sshUserSetup.sh -user oracle -hosts "server01 server02"  -noPromptPassphrase 
For EBS
$RUN_BASE/FMW_Home/Oracle_EBS-app1/oui/prov/resources/scripts/sshUserSetup.sh -user applmgr -hosts "server001 server002" -noPromptPassphrase