oracle - 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))(CONNECT_DATA=(SID=ORCL)))'

This is giving me error

SQL*Plus: Release 11.2.0.4.0 Production on Fri Jul 10 16:10:38 2015

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

ERROR:
ORA-21561: OID generation failed


Enter user-name: 

What is the solution for this problem?

PS: I have already added hostname and hosts have already have value.

Answer 1

Append the name of your server to the hosts file.

If your /etc/hosts file looks like this:

127.0.0.1   localhost localhost.localdomain

It should be changed to:

127.0.0.1   localhost localhost.localdomain hostname

hostname can be obtained from the command "hostname".