Reset lost weblogic admin password

August 30, 2010  |  linux, security, weblogic  |  12 Comments

If any of you ever lost the weblogic adminserver password or any other weblogic server (for instance your forms and reports server 11g enterprise manager password),  and want to reset it, these are the steps to do it on weblogic 10.3 (11g) [bash] # set environment variables export MWHOME=/u01/app/oracle/product/middleware export DOMAIN_HOME=$MWHOME/user_projects/domains/base_domain export CLASSPATH=$CLASSPATH:$MWHOME/wlserver_10.3/server/lib/weblogic.jar cd $DOMAIN_HOME/bin . ./setDomainEnv.sh #...

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RMAN 06193: connected to target database (not started). WRONG!

October 8, 2009  |  dba, linux, security  |  5 Comments

As you probably know, database must be started before any other RMAN commands are issued. So... how to solve this issue if you have 100% that your database is open and working? Take a look at my case and my environment variables: ORACLE_SID=dw ORACLE_HOME=/u01/app/oracle/product/10.2.0/db_1/ ORACLE_BASE=/u01/app/oracle/ [oracle@db env]$ rman target / Recovery Manager: Release 10.2.0.4.0 -...

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RHEL5 or OEL5: Oracle 10g/11g "error while loading shared libraries" or stalled OUI

March 5, 2009  |  dba, linux, security  |  1 Comment

A Quick intro... Take a look at the following issues: Symptom : Oracle Database Configuration Assistant (DBCA) stalled while creating the database Symptom : Oracle IAS 10G  stalled during software installation with message "Please wait, this will take a moment" Symptom : error while loading shared libraries: $ORACLE_HOME/lib/libnnz11.so: cannot restore segment prot after...

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Move, Clone or Copy an Oracle Database with RMAN

January 7, 2009  |  dba, security  |  16 Comments

Moving, copying or cloning a database from one server to another with different directory structures can be easily accomplished with RMAN. Imagine that you have a database on one node and you want to copy it to another node without shuting down your database and move your datafiles to a...

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Fast Incremental Backups with Block Change Tracking

November 24, 2008  |  dba, security  |  No Comments

Backing up terabyte size databases can be time consuming. When RMAN performs an incremental backup, Oracle must scan all database / tablespace to identify which blocks have been updated since last backup. This, of course, is very time and resource consuming. Fortunatly Oracle 10g brings the possibility to track changed...

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Sync backups between multiple servers and a central server

September 20, 2008  |  linux, security  |  1 Comment

Hi folks... I'm back from vacations and from some weeks without blogging. Today I'll write about a problem that I had on managing multiple servers and their backups. Imagine that you manage multiple servers and you want to assure that the nightly disk backups are copied to a central server that's...

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