General

How to create certificates for a server

For creating certificates for a server, first a Certificate Signing Request (CSR) file is created. It is then signed by the Certificate Authority (CA). Renate will take care of the “signing” part via a self-service portal.  Post approval, the Certificate and Interim certificate download links will be sent to us. We need to download those certificates… read more »

Ganglia Setup and Troubleshooting

Introduction https://www.digitalocean.com/community/tutorials/introduction-to-ganglia-on-ubuntu-14-04 Ganglia is a scalable distributed monitoring system. It scales well with very large numbers of servers and is useful for viewing performance metrics in near real-time. On the back end, Ganglia is made up of the following components: Gmond (Ganglia monitoring daemon): a small service that collects information about a node. This is… read more »

PhpCAS

In order to provide authentication service to web application https://mathesis.asu.edu/somss/, I have used phpCAS 1.3.5. Before using it, we have to ensure about the following requirements: CURL (7.5+) CURL libs must be present on your system, and they must have been compiled with SSL support. For PHP >= 5.4 (PHP >= 4.2.2 for 1.1.x) (Our version… read more »

Spike, Apache Tomcat Integration

1. Install the apache mod_jk                   sudo apt-get install libapache2-mod-jk2. Restart the apache service                   sudo service apache2 restart3. Enable the mods proxy and proxy_http                   sudo a2enmod proxy           … read more »

Spike Installation

Spike uses following software. SQL i has the user  authentication  information pass:r java versionjava-1.6.0-openjdk-amd64 1061 /usr/lib/jvm/java-1.6.0-openjdk-amd64java-1.7.0-openjdk-amd64 1051 /usr/lib/jvm/java-1.7.0-openjdk-amd64java-7-oracle 1065 /usr/lib/jvm/java-7-oracle versions used   jre used::java-7   jdk used::java-7 1)Tomcat-5 location:/usr/local/tomcat  tomcat running with the jdk-7(java-7-oracle) start: go to: /usr/local/tomcat/bin run the script use:./startup.sh shutdown: go to /usr/local/tomcat/bin run the script use:./shutdown.sh catalina.sh: no changes to this file yet. port-config: goto /usr/local/tomcat/conf/server.xml <Connector… read more »

Xeon_PHI Intel MPSS Installation

1)Download the MPSS driver and untar it2)Uninstall the Previous version of the MPSS:   for RHEL 6.*:- [host]# service mpss unload[host]$ cd mpss-*.*.*[host]$ ./uninstall.sh    for RHEL 7.*:- [host]# systemctl disable mpss[host]# modprobe -r mic[host]$ cd mpss-*.*.*[host]$ ./uninstall.sh 3)check the kernel version using the following command:- [host]$ uname -r 4)open the modules directory and copy the… read more »

Booting Mixing

For controller selection -> ctrl + H Bus level 2 is the internal raid array. Bus level 3 is external raid array. If not booting up, install grub on level 2 ie. /dev/sda using centos 5.x boot CD and reboot the machine. On the reboot, select F6 for the boot menu selection and select the… read more »

Useful Softwares and Websites

EasyBCD : To add Ubuntu in the MBR through windows. This software can be used to display dual boot options if somehow loggin in ubuntu option is not displayed in boot screen and computer goes directly to windows. Install this software in Windows, add ubuntu by following the instruction on web, and the dual logging/… read more »

How to Link new pages to the Bulletin Board

This WIKI will tell you how to create a New page and have a shortcut on the front page of the corresponding WIKI main page. We shall do this by using an example. STEP 1: Go to the WIKI of the topic inside which you wish to create a new page. (let us say we want… read more »

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