tag:blogger.com,1999:blog-7729906311842146902011-04-21T11:48:28.365-07:00I am newbie on java language programming but very interest to learn it. We use java language to develope information system on my office. with java and framework like ZK and Spring i feel is esae to code. and i am use OS Linux platform with CentOS 5 and Tomcat 6 for web server. I am happy could learn it.masdhttp://www.blogger.com/profile/15016730779096437058noreply@blogger.comBlogger31100tag:blogger.com,1999:blog-772990631184214690.post-26088907977329812092009-03-04T21:38:00.000-08:002009-03-04T22:01:01.191-08:00sometimes i try to connect to MySQL server in CentOS 5 machine, but i have problem can't connect MySQL, i don't understand why, i feel this is coused by not opened the port off MySQl, and i don't know how to open the port, i remember firewall in linux is SElinux and this is my target to disable, with this step;<br />1. Open File : /etc/selinux/config<br />2. Change value <code>SELINUX=enforcing</code> to <code>SELINUX=permissive or </code><code>SELINUX=</code><code>disable<br /></code>3. Reboot the machine<br /><br />and my server has connected.<br /><br /><code>here to disabling SELinux on Ubuntu<br /></code><span class="mediumtext"><br /><span style="font-family:'Courier New',Courier,monospace;">1.cd /boot/grub</span> <enter><br /><span style="font-family:'Courier New',Courier,monospace;">2.vi grub.conf</span> <enter> This will edit the grub.conf file.<br />3. Look for the line starting with "kernel" and add "selinux=0" at the end. The line will look similar to this:<br /><span style="font-family:'Courier New',Courier,monospace;">kernel /boot/vmlinuz-2.4.20-selinux-2003040709 ro root=/dev/hda1 nousb <strong>selinux=0</strong></span><br /><br />Save the grub.conf file and reboot the server. Once the server has been rebooted, SELinux is disabled.<br /><br /></enter></enter></span><code><br /></code><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/772990631184214690-2608890797732981209?l=masdjavahappy.blogspot.com' alt='' /></div>masdhttp://www.blogger.com/profile/15016730779096437058noreply@blogger.com0tag:blogger.com,1999:blog-772990631184214690.post-33824923351548967922009-01-28T16:26:00.000-08:002009-01-28T20:21:57.721-08:00We was download the package apache-tomcat-6.0.18.tar.gz and uncompressed on /home directory. we want tomcat running automatic on startup system, with try make a script to running tomcat in init.d and make symlink on rcX.d (when X is number 0 - 6) in directory rc.d, but unsuccessfully. So I am googling and found this solution.<br /><ol><li>Open /etc/rc.d/rc.local and Type this Commands </li><li>export TOMCAT_HOME= /home/apache-tomcat-6.0.18/</li><li>export CATALINA_HOME=$TOMCAT_HOME</li><li>$CATALINA_HOME/bin/startup.sh<br /></li><li>export CATALINA_OPTS="-Xms512m-Xmx512m"</li></ol>Note : Command number 5 for setting memory on tomcat<br /><br />When we try restart system we are happy.... successfully...<div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/772990631184214690-3382492335154896792?l=masdjavahappy.blogspot.com' alt='' /></div>masdhttp://www.blogger.com/profile/15016730779096437058noreply@blogger.com1tag:blogger.com,1999:blog-772990631184214690.post-24690847901314010572009-01-27T20:19:00.000-08:002009-01-30T00:01:49.922-08:00Simplify installing java on linux; that is:<br /><ul><li>Download the new version of JDK (jdk-6u11-linux-i586-rpm.bin when i am posting this blog) on Sun Microsystem site.</li><li>enter on terminal / console and type su<br /></li><li>login on your linuk OS as root</li><li>type sh ./jdk-6u11-linux-i586-rpm.bin<br /></li></ul><br /><div style="text-align: center;"><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://4.bp.blogspot.com/_bFHUDTqP800/SYKpR2QsFfI/AAAAAAAAAAM/ZtSykU73_ys/s1600-h/p1.bmp"><img style="margin: 0pt 10px 10px 0pt; float: left; cursor: pointer; width: 355px; height: 215px;" src="http://4.bp.blogspot.com/_bFHUDTqP800/SYKpR2QsFfI/AAAAAAAAAAM/ZtSykU73_ys/s320/p1.bmp" alt="" id="BLOGGER_PHOTO_ID_5296982235829507570" border="0" /></a><br /></div><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><ul><li>press key (CTRL-C)</li><li>type yes for answer agreement</li><li>Wait while installation on progress</li></ul><div style="text-align: center;"><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://3.bp.blogspot.com/_bFHUDTqP800/SYKqMKpePfI/AAAAAAAAAAU/gC1LZrcwYek/s1600-h/p2.bmp"><img style="margin: 0pt 10px 10px 0pt; float: left; cursor: pointer; width: 320px; height: 146px;" src="http://3.bp.blogspot.com/_bFHUDTqP800/SYKqMKpePfI/AAAAAAAAAAU/gC1LZrcwYek/s320/p2.bmp" alt="" id="BLOGGER_PHOTO_ID_5296983237734579698" border="0" /></a><br /></div><br /><br /><br /><br /><br /><br /><br /><br /><ul><li>and done<br /></li></ul>check java version<br />$ java -version<br /><br />if java version different from instalaion change the version with<br />export JAVA_HOME=/usr/java/jdk1.6.0_11<br />export PATH=/usr/java/jdk1.6.0_11/bin<br /><br /><br /><br />and congrutulation ...!...<div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/772990631184214690-2469084790131401057?l=masdjavahappy.blogspot.com' alt='' /></div>masdhttp://www.blogger.com/profile/15016730779096437058noreply@blogger.com1