The database server that you tried to access does not accept either your user ID, the login name that is specified for the desired server host in your ~/.netrc file, or the user name that is specified in the USER clause of a CONNECT statement. If you are explicitly specifying your user name in the ~/.netrc file or in a CONNECT statement, check that the name is correct. If you do not have a valid user ID on the server computer, see your system administrator. This message appears with Version 6.0 and later.
-951 User is not known on remote host.
This statement refers to a database on another computer system, but the other system does not accept your account name. You must have a valid login identity on any computer system you access. See your network administrator about getting a login ID. This message appears prior to Version 6.0.