ora_logon receive ora-12154

Hi, I'am having serious problems in put php acessing a remote oracle 8 database, i have tried several configurations but always end up with Oracle: Connection Failed: ORA-12154: TNS:could not resolve service name in /var/www/htdocs/support/teste.php on line 5 I can access this database from sqlplus and when I start apache all oracle variables are set. If I get rid of the connect string and access my local database then everything is ok. My code is something like... putenv("ORACLE_HOME=/apps/oracle/8.1.7"); putenv("TNS_ADMIN=/apps/oracle/8.1.7/network/admin"); // main if(!($conn=ora_logon("user@SERVICE","pass"))) echo "Error: Cannot connect to database\n"; exit; } .... Using: apache: apache_1.3.19 php4: php-4.0.5 Linux: Red Hat 7.0 with latest patch's Remote Oracle DB: Oracle 8.1.6 W2K Local DB: Oracle 8.1.7 Linux php build with: --with-oci8 --with-oracle Any help would be apreciated... Thanks, Miguel