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To Install DB2 Enterprise Edition License in Linux , try to do this:

It's been a long time since I jump off to VB and shift to java . Since i already understand some of java's concept, I want to learn now the new technologies like Hibernate, Struts, and Spring. I've found a great site which contains basic concepts, history, and sample programs using the following frameworks and i want to share it to those developers reading this article.

 Exposing Oracle Database Connection After Installation, your connection to the Oracle database is not yet exposed so you'll need to configure it inside Oracle .

ERROR [JDBCExceptionReporter:101] Communications link failure due to underlying exception: ** BEGIN NESTED EXCEPTION ** java.net.SocketException MESSAGE: Broken pipe This error always comes out to my logs, while liferay is up but the good thing is it doesn't have an effect at all. The reason is that the application is left idle after a few hours, then this error will come out. To solve this kind of problem, you have to edit your portal-ext.properties file. In my case, i was connecting to MySQL 5 database and i want to share my settings of my portal-ext.properties file:

To upgrade you liferay portal 5.2.2 into 5.2.3, simply follow this instructions:

 Download and Install Java SDK 6u12 Click this link to download jdk-6u12-linux-i586-rpm.bin To install the downloaded bin file, simply enter these commands: [root@localhost~]# chmod a+x jdk-6u12-linux-i586-rpm.bin [root@localhost~]# ./jdk-6u12-linux-i586-rpm.bin # accept the license agreement presented by the installer, then # wait for the installation to finish

After Installation and Configuration of MySQL 5.1 in a Red Hat Linux Machine, this post will now help you connect your own Liferay Portal to your installed MySQL 5.1.

How to backup and restore MySQL Database Backup MySQL Databaase Syntax: mysqldump -u root -h localhost -p [database name] > [script file name].sql after entering this command, MySQL will ask for root password. Simply supply password and press enter. To Restore MySQL Database to your newly created database: Make sure that the name of your new database is the same with the name of your old database. mysql -u root -h localhost -p [dataabase name] < [script file name].sql after entering this command, MySQL will ask for root password. Simply supply password and press enter.

Liferay 5.2.2: Performance Tuning This is what i have done to improve liferay's performance using Red Hat Linux 4 . export JAVA _HOME=/path/to/java export PATH=$JAVA_HOME\bin:$PATH JAVA_OPTS=$JAVA_OPTS-Xms128m-Xmx1024m-XX:MaxPermSize=128m

Configure MySQL 5.1 to RHEL 4 This is how i do to configure MySQL to RHEL 4 using terminal MySQL will automatically start after the successfull installation to the machine.   1. Since i can't find the my.cnf file and this message always appear [root]# /etc/init.d/mysql status /etc/init.d/mysql: line 412: test: 20424: binary operator expected MySQL is running but PID file could not be found [FAILED] , i download it from the net...here is the code: [mysqld] datadir=/var/lib/mysql skip-locking skip-innodb skip-networking safe-show-database query_cache_limit=1M query_cache_size=32M ## 32MB for every 1GB of RAM query_cache_type=1 max_user_connections=200 max_connections=500 interactive_timeout=10 wait_timeout=20 connect_timeout=20 thread_cache_size=128 key_buffer=64M ## 64MB for every 1GB of RAM join_buffer=1M max_connect_errors=20 max_allowed_packet=16M table_cache=1024 record_buffer=1M sort_buffer_size=1M ## 1MB for every 1GB of RAM read_buffer_size=1M ## 1M...

Install MySQL 5.1 to RHEL 4 1. I enter this command rpm -i MySQL server-community-5.1.32-0.rhel4.i386.rpm 2. and a message appears " warning: MySQL -server-community-5.1.32-0.RHEL4.i386.rpm: V3 DSA signature: NOKEY, key ID 5072elf5 error: Failed dependencies: MySQL conflicts with mysql -4.1.20-2.RHEL4.1.i386 " 3. and i ask some friends about this problem and they told me to run this command to know the other installed MySQL rpm -qa | grep -i '^mysql' 4. I remove previously installed MySql with the command rpm --nodeps -ev mysql-4.1.20-2.RHEL4.1.0.1 5. After i removed the installed MySQL, i run the command : rpm -i MySQLserver-community-5.1.32-0.rhel4.i386.rpm After 48 years, it stops with no errors...My next problem is the configuration of MySQL... Thanks to google...

TWiki On Debian Here is the easiest way to create TWiki in your Linux Debian OS... Click here to read more...