Preparing the Service Impact server host

This procedure describes how to prepare a dedicated host for the Service Impact server.
  1. Log in to the Service Impact server host as root, or as a user with superuser privileges.
  2. Configure firewall ports or disable the firewall.
    You may disable the firewall now, and then configure firewall ports later.
  3. Disable Security-Enhanced Linux (SELinux).
    1. Disable enforcing mode permanently.
      EXT=$(date +"%j-%H%M%S")
      sed -i.${EXT} -e 's/^SELINUX=.*/SELINUX=disabled/g' \
        /etc/selinux/config
    2. Disable enforcing mode immediately.
      echo 0 > /selinux/enforce
  4. Determine whether the OpenJDK 1.8 is installed.
    java -version
    • If the command returns output similar to the following, continue to the next procedure.
      java version "1.8.0_121"
      OpenJDK Runtime Environment (rhel-2.5.4.0.el6_6-x86_64 u121-b13)
      OpenJDK 64-Bit Server VM (build 24.121-b04, mixed mode)
    • If the command returns output that includes Java HotSpot(TM), remove the Java package and install OpenJDK 1.8.
    1. Identify the Java package to remove.
      rpm -qa | egrep -i '(jdk|jre)'
    2. Remove the package.
      yum -y remove $(rpm -qa | egrep -i '(jdk|jre)')
    3. Install OpenJDK.
      yum -y install java-1.8.0-openjdk.x86_64
    4. Verify the install succeeded.
      java -version
      If the command returns output similar to the following, continue to the next procedure.
      java version "1.8.0_121"
      OpenJDK Runtime Environment (rhel-2.5.4.0.el6_6-x86_64 u121-b13)
      OpenJDK 64-Bit Server VM (build 24.121-b04, mixed mode)