Welcome to my website. I am always posting links to photo albums, art, technology and other creations. Everything that you will see on my numerous personal sites is powered by the formVistaTM Website Management Engine.

icon.linkedin.jpgicon.twitter.jpg

  • Installing Jboss 6.1.0-Final under RHEL or CentOS
    12/22/2011 12:19PM

    The following is a howto for installing Jboss under Red Hat Enterprise Linux or CentOS.  The steps are most likely the same under any other Linux distro.

    • Unpack your jboss.zip (or .tar)
    • Jboss requires a 'place' to store data as it runs.  Out of the box it uses org.jboss.jdbc.HypersonicDatabase which is horribly inefficient and should never be used in a production system.  So we'll set up MySQL such that jboss can write to it (installing and configuring MySQL is an excersize for the reader) and create a DataStore instance in jboss that points to the MySQL server:
    Add a jboss user to MySQL (This is with a 5.x version of MySQL)

    INSERT INTO `user` VALUES ('localhost', 'jboss', '5d2e19393cc5ef67', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'N', 'N', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'N', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'Y', 'N', '', '', '', '', 0, 0, 0, 0)

    Create a table for jboss
    • Create a DataSource definition:
    Copy mysql-ds.xml from $JBOSS_HOME/docs/examples/jcs/mysql-ds.xml to $JBOSS_HOME/server_profile/deploy

    Edit the mysql-ds.xml:

    Change JNDI name to: DefaultDS

    Update the URL to point to the MySQL server and jboss database.

    Remove the 'zeroDateTimeBehavior=convertToNull' connection argument

    # mv deploy/hsqldb-ds.xml deploy/hsqldb-ds.xml.removed.   This will disable the default HyperSonic db DataStore.
    • Unistall the services that you do not need.  This will greatly depend on what it is that you are trying to do with this application server instance.  Following are some examples of services that are removed and how to do it.  Each one is a bit different.
    javamail:
    In deployers/jsr77-deployers-jboss-beans.xml: Comment out the following: <property name="mailService">jboss:service=Mail</property>

    # mv deploy/mail-service.xml deploy/mail-service.xml.removed

    hornetq:
    # rm -rf deploy/jms-ra.rar/
    # rm -rf deploy/hornetq/
    # mv deployers/hornetq-deployers-jboss-beans.xml deployers/hornetq-deployers-jboss-beans.xml.removed

    clustering:

    # mv ./deployers/clustering-deployer-jboss-beans.xml ./deployers/clustering-deployer-jboss-beans.xml.removed
    # rm -rf ./deploy/mod_cluster.sar/
    • Update the admin console password:
    Edit: $JBOSS_HOME/server_profile/conf/props/jmx-console-users.properties

    Add a uid/password combination in the following format: uid=password
    • Secure the jmx-console:
    Copy the jmx-console.war from the common directory into the server_profile server dir.
    # cp -Rpf ./common/deploy/jmx-console.war/ server/amap/deploy

    Edit: ./deploy/jmx-console.war/WEB-INF/jboss-web.xml

    Uncomment the <security-domain> node

    Edit: ./deploy/jmx-console.war/WEB-INF/web.xml

    Uncomment the <security-constraint> node

    Edit: ./deploy/jmx-jboss-beans.xml

    Uncomment the line: <property name="securityDomain">jmx-console</property>

    Edit: conf/props/jmx-console-users.properties

    Change the password

    With that, you should have an instance of JBoss up and running and ready for you to develop your applications.

  • Configuring JBoss 6.x to Run as a Service Under RHEL and CentOS
    12/22/2011 11:28AM

    In most cases you will want to run JBoss as a non-privileged user.  For this example we will set up a jboss user (adding the user is an excersize for the user).  This example covers jboss-6.1.0-Final.

    • Add $JAVA_HOME and $JBOSS_HOME environmental vars to .bash_profile for your jboss user.  $JAVA_HOME points to your install of the JDK and $JBOSS_HOME points to your jboss installation directory.
      JAVA_HOME=/usr/lib/jvm/java-1.6.0-openjdk.x86_64
      export JAVA_HOME
      PATH=$JAVA_HOME/bin:$PATH
      export PATH
    JBOSS_HOME=/opt/jboss/
    export JBOSS_HOME

    • Once you have done the basic JBoss installation set up, copy the jboss_init_redhat.sh to /etc/init.d/jboss.
    • Add the following directly below the #!/bin/bash line:
    # description: JBoss Start Stop Restart
    # processname: jboss
    # chkconfig: 234 20 80

    • Set JBOSS_HOME
    • JAVAPTH to the location of your JDK
    • Set JBOSS_CONF to the profile you want to run
    • define a $JBOSS_HOST variable and set it to either the IP address or host name of the machine on which you are running jboss.
    • Update the JBOSSCP to include the jbossall-client.jar
    JBOSSCP=${JBOSSCP:-"$JBOSS_HOME/bin/shutdown.jar:$JBOSS_HOME/client/jbossall-client.jar"}
    • Replace the JBOSS_CMD_STOP with the following line (the uid:password combo is whatever you used to lock down the admin console in jboss):
    JBOSS_CMD_STOP="$JBOSS_HOME/bin/shutdown.sh -s service:jmx:rmi:///jndi/rmi://192.168.126.128:1090/jmxrmi -u admin -p password"
    • Enable jboss as a service in the OS:
    • Make the jboss script executable:
    • # chmod 755 jboss
    Add it as a service via chkconfig:
    • # chkconfig --add jboss
    Set the run levels for the jboss service
    • # chkconfig --level 2345 jboss on
  • Installing HP LaserJet 4050 Network Printer under Window 7 64bit
    12/19/2011 10:10PM
    When attempting to install an HP LaserJet 4050 network printer under Win 7 64bit all you need to do is use the LaserJet 4200/4300 PCL6 naitive drivers that come with Windows.
  • Fix For: Pango-WARNING **: failed to choose a font, expect ugly output and Other FireFox Errors
    11/29/2011 1:54PM
    $ firefox &
    [1] 1933

    $
    (firefox:1947): Pango-WARNING **: failed to choose a font, expect ugly output. engine-type='PangoRenderFc', script='common'
    GConf Error: Failed to contact configuration server; some possible causes are that you need to enable TCP/IP networking for ORBit, or you have stale NFS locks due to a system crash. See http://projects.gnome.org/gconf/ for information. (Details -? 1: Failed to get connection to session: /bin/dbus-launch terminated abnormally without any error message)

    (firefox:1947): Pango-WARNING **: failed to choose a font, expect ugly output. engine-type='PangoRenderFc', script='common'
    GConf Error: Failed to contact configuration server; some possible causes are that you need to enable TCP/IP networking for ORBit, or you have stale NFS locks due to a system crash. See http://projects.gnome.org/gconf/ for information. (Details -? 1: Failed to get connection to session: /bin/dbus-launch terminated abnormally without any error message)
    /usr/lib64/firefox-3.6/run-mozilla.sh: line 131:? 1947 Segmentation fault????? "$prog" ${1+"$@"}

    [1]+? Exit 139??????????????? firefox


    Should you see such an error when attempting to run FireFox from a remote terminal connecting to a local XServer (Xming, or similar) check the following:

    1. That the haldaemon is running
    2. That the dbus-x11 package is installed.? On RedHat based systems, you can yum install dbus-x11
    3. That you have fonts installed.? I did a bit of a brute force approach and ran: yum groupinstall 'Fonts'
  • Redirecting All Web Requests to the WWW. DNS Entry for Your Web Site
    11/20/2011 10:14PM

    If you would like to redirect all non 'www' requests for pages on your site to the 'www' dns entry add the following to your .htaccess file in the document root of your site:

    RewriteEngine On
    RewriteCond %{HTTP_HOST} !^www\.
    RewriteRule ^(.*)$ http://www.%{HTTP_HOST}/$1 [R=301,L]

  • 1 2 3 4 5 6 7 8 9 >>
Advanced Search

Categories

Archives