First we have to download the latest jre binary from http://java.sun.com/javase/downloads/index.jsp choose Java SE Runtime Environment (JRE) Update xx then select platform, please select linux or linux x64 depending on your centos version you ‘ve install in your machine. then select [ jre-xxx-linux-xxx.bin] please do not select the rpm one. to download: [server]# wget http://xxxxx.jre-xxx-linux-xxx.bin we have to allow the file to be execute using [server]# chmod +x jre-xxx-linux-xxx.bin then extract it using : [server]# ./ jre-xxx-linux-xxx.bin in the screen appear EULA just press spacebar ’till it ask yes or no, just type yes then move the extracted folder to /usr/lib/jre1.6.0_xx [server]# mv jre1.6.0_xx /usr/lib/ then link it to jre directory so u wont have to recreate JAVA_HOME path if u want to upgrade jre later [server]# ln -s /usr/lib/jre1.6.0_xx /usr/lib/jre define Java home to that path [server]# export JAVA_HOME=/usr/lib/jre java instalation done then we have to down...