Oracle 19c -- External Jobs Fails with "Login Executable Not Setuid-Root"

Problem

External jobs fail with error ORA-27369: Log in executable not setuid-root

Solution

Verify and ensure executables have correct ownership and rights:

# chmod 6751 $ORACLE_HOME/bin/oracle 

# chown root $ORACLE_HOME/bin/extjob
# chmod 4750 $ORACLE_HOME/bin/extjob

# chown root $ORACLE_HOME/rdbms/admin/externaljob.ora
# chmod 640 $ORACLE_HOME/rdbms/admin/externaljob.ora

# chown root $ORACLE_HOME/bin/jssu
# chmod 4750 $ORACLE_HOME/bin/jssu