Njikto zhe njegovorit, shto nado ubivatj /etc/passwd :) $ORACLE_HOME/dbs/orapwSID (*nix) ilji PWDSID.ORA (win) soderzhit parolj internal i SYSDBA userov.
No eti faila imejet smisl tolko togda, jeslji init parameter remote_login_passwordfile-shared ilji exclusive

estj 3 sposoba smenjitj password INTERNAL'a (izvinjitje, no budet copy/paste ot metalink):

Resetting/changing the password of the user internal:
1) Recreate the passwordfile (Read Warning 1 & 2):
You can recreate the password file using the ORAPWDxx command by which you can specify the password for internal. Before running this command to create the new password file, make sure to delete the old password file.
D:\> ORAPWD file=D:\ORANT\DATABASE\PWDORCL.ORA password=<password> entries=5

Remark: ------- If the value of the "remote_login_passwordfile" parameter in the "init.ora" is EXCLUSIVE then you must shutdown your database before recreating the password file. Failure to do so will result in being unable to connect as internal as long as you don't stop the database by for example stopping services.

2) Alter the password of the user 'SYS' (Read Warning 1)
a) Verify the values of the "remote_login_passwordfile" in the "init.ora" parameter file. If its values is exclusive continue with e) if Shared continue with b)
b) Stop the database if it is started
c) Change the "remote_login_passwordfile" in the Init<SID>.ora to "exclusive".
d) Startup the database.
e) Alter the user SYS to a new password, now also the password for internal.

3) Use ORADIMxx (Read Warning 2)
You could drop the instance and recreate it with a new password. Suppose the SID in question is ORCL:
a) You shutdown the database and stop the services.
b) D:\> ORADIMxx -delete -sid ORCL
c) D:\> ORADIMxx -new -sid ORCL -intpwd <new password> -startmode auto -pfile D:\ORANT\DATABASE\INITORCL.ORA




Warning: ~~~~~~~~
1) (Methods 1 and 2) Changing the password of the internal might prevent your database from starting up automatically in Oracle7 7.3.x and Oracle8 8.0.x. When you create your instance with the instance manager and configure it to startup automatically. (ORADIMxx -new -sid ORCL -intpwd ORACLE -startmode AUTO -pfile D:\ORANT\DATABASE\INITORCL.ORA), a file <ORACLE_HOME>\DATABASE\strt<sid>.cmd is generated. That file contains (hardcoded) the password of internal. If the password in there does not match the actual password of internal, the instance will fail to startup automatically When you change the password of internal in one of the above described ways and if you still want your database to start up automatically, you need to adjust the password manually.

2) Methods 1 and 3 can result in loosing all previously registered sysdba and sysoper users. If you had granted specific users those privileges again, you will need to grant it again.

Estj takoj Oracle bug, katorij izpravljen v versijah 8.0.6 i 8.1.6 - full import terjajet internal parolj.
I jeslji remote_login_passwordfile=exclusive, togda menjaja password usera sys, menjajetsja i password internal'a.