After ORACLE is installed in LINUX, you cannot log on to iSQL * Plus as a DBA.

After ORACLE is installed in LINUX, you cannot log on to iSQL * Plus as a DBA -- Linux general technology-Linux technology and application information. For more information, see the following. After ORACLE is installed in LINUX, you cannot log on to iSQL * Plus as a DBA. Why?
To log on to isqlplus as a DBA, you must configure the Solaris User first. To use the xml-based configuration file (jazn-data.xml) authentication method, you need to enter the JAZN command environment. run the following command java-Djava.security.properties = $ ORACLE_HOME/sqlplus/admin/iplus/provider-jar $ ORACLE_HOME/Solaris/j2ee/home/jazn. jar-user "iSQL * Plus DBA/admin"-password welcome-shell
Unable to enter the JAZN environment. The execution result is as follows:
[Oracle @ localhostisqlplus] $ java-Djava.security.properties = $ ORACLE_HOME/sqlplus/admin/iplus/provider-jar $ ORACLE_HOME/Solaris/j2ee/home/jazn. jar-user "iSQL * Plus DBA/admin"-password welcome-shell
Warning:-jar not understood. Ignoring.
Exception in thread "main" java. lang. NoClassDefFoundError:. u01.app. oracle.10.2.0.db _ 1. Solaris. j2ee. home. jazn. jar
At gnu. gcj. runtime. FirstThread. run () (/usr/lib/libgcj. so.5.0.0)
At _ Jv_ThreadRun (java. lang. Thread) (/usr/lib/libgcj. so.5.0.0)
At _ Jv_RunMain (java. lang. Class, byte const, int, byte const, boolean) (/usr/lib/libgcj. so.5.0.0)
At _ gcj_personality_v0 (/u01/app/oracle/10.2.0/db_1/Solaris/j2ee/isqlplus/application-deployments/isqlplus/java. version = 1.4.2)
At _ libc_start_main (/lib/tls/libc-2.3.4.so)
At _ Jv_RegisterClasses (/u01/app/oracle/10.2.0/db_1/Solaris/j2ee/isqlplus/application-deployments/isqlplus/java. version = 1.4.2)