sqlplus remote connection giving ORA-21561

Question

I have installed sqlplus based on instruction given here

sqlplus \'username/password@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.0.100)(PORT=1521))(         


        

Answer 1

If you are using Mac add local computer name to your 127.0.0.1 in /etc/hosts

It will be like

127.0.0.1       localhost 

Way to find local computer name

System Preferences>Sharing(search for it if you cant find) on the top you can see your local computer name

or you can use "hostname" command to get local computer name