How to use an external Apache2 distribution in Blackboard 9.1 SP8 over Solaris

By jm | Published: April 5, 2012

The hard part of doing this is actually compiling Apache2 in Solaris SPARC using the native openssl libraries, which I really recommend, I mean, using the original OS packages which certainly are optimized to take advantage of SPARC. Once said that and having the available documentation here, we’re ready to modify a couple of Blackboard configuration files, create a soft link and done, you’ll be able to use Apache 2 compiled for 64bit with native OpenSSL libraries as front end to Blackboard.
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Oracle – Degree of Parallelism

By jm | Published: April 5, 2012

The number of parallel execution servers associated with a single operation is known as the degree of parallelism (DOP). Parallel execution is designed to effectively use multiple CPUs. the Oracle Database parallel execution framework enables you to either explicitly choose a specific degree of parallelism or to rely on Oracle Database to automatically control it. (Oracle, 2012)
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Blackboard and SNMP Monitoring

By jm | Published: April 5, 2012

Intrusive and non-intrusive are the current methods to monitoring an application which are related to the overhead caused by each. For instance, speaking of Java Application, some monitoring software requires to configure a .jar file called probe within the JAVA_OPTS environment variable which makes a JVM profiling by Java Management Extensions methodology and causes more than one thread to intervene in the current state of the instance, due to this impact or overhead I can called The Intrusive way to monitor a JVM even the data is as valuable as any.

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How to Install Cacti on Ubuntu 10

By jm | Published: April 5, 2012

Cacti is a complete network graphing solution designed to harness the power of RRDTool’s data storage and graphing functionality. Cacti provides a fast poller, advanced graph templating, multiple data acquisition methods, and user management features out of the box. All of this is wrapped in an intuitive, easy to use interface that makes sense for LAN-sized installations up to complex networks with hundreds of devices. (Source: Cacti)
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Unix Screen command

By em | Published: April 5, 2012

Recently I was introduced to the world of screen also known as Screen multiplexer. But the main reason behind this is not to show you what you can find in Google but what you can actually do with it.

So hopefully in this not so lengthy article I will show you some basic commands and you can comment with some more or just refer to the documentation for them.
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