After upgrading from SLES 10 sp2 to sp3, I get the following oracle message:

ORA-12154: TNS could not resolve the connect identifier specifiied.

I also have another machine with SLES10 sp2 and I compare the tnsnames.ora and the sqlnet.ora and they are exactly the same. However, the machine with SLES10 sp2 is working ok.

Can you help

Thx