If we use these purely hacking tools, we can really check how our servers appear to a black hat hacker. It is normal not to know how to use them by a relatively new sysadmin. These will give you idea why odd log entries appear too. Here is real life way to brute force SSH test own server with ncrack, hydra, medusa. These are no way closest to real black hat hackers work. They will have many … [Read more...]
Computer and Internet
Computer and Internet is catchall section of core computing categories including Cloud Computing, Digital Photography, Virtualization, Networking, Protocols and Others' which are not otherwise more subcategorized. Here also you will get unique articles and news on computer hardware, Software, Networking and Protocols.
Types of Fuses, Fuseholders Used in DIY & Household
Thomas Edison has patent on fuse. Fuse provides overcurrent protection to a circuit using basic theory. Thomas Edison never discovered incandescent bulb but he discovered the Edison screw mount and modified filament. Thomas Edison has not discovered fuse too. Who discovered fuse that is not known, he added a standard and Louis Breguet recommended such thing in mid 1850. There is another similar … [Read more...]
What Are rel=”noopener”, rel=”noreferrer”?
Hyperlinks links point to another webpage and link relationships explains why we are pointing so. The question what are rel="noopener", rel="noreferrer" appearing because latest versions of WordPress has rel="noopener", rel="noreferrer" on link in visual editing mode. Another such link relationship was discussed previously -- rel="author" and rel="me" in WordPress in the easiest … [Read more...]
Types of Electrical Switches Used in DIY & Household
In DIY works, theoretical knowledge around them becomes a barrier - it happens that you noticed a thing in use and understood to be appropriate but the name is unknown to you. We are saying the theoretical English nomenclatures, for few in real life technicians to the shops refer them with different sounding name which goes worser in the non-English speaking countries. Here are the common types of … [Read more...]
How To Process Server Log in Hadoop, Pig : Free IBM Analytics Demo Cloud
In our previously published guides, we talked about installing Hadoop, installing Pig on own server. We also talked about free IBM Analytics Demo Cloud with needed softwares pre-installed, ready to use. Here is basic example with commands to show how to process server log in Hadoop, Pig can be done using free IBM Analytics Demo Cloud. This guide can be followed by even who never used Hadoop or … [Read more...]
Compatibility of Our Existing OpenStack Guides For IBM OpenStack
In recent times we noticed that peoples are searching around IBM OpenStack things. We have many guides on HP Cloud, Rackspace OpenStack. Here is disclaimer & short note on compatibility of our existing OpenStack guides for IBM OpenStack. Intended audience already know about what is OpenStack. We are talking about the IaaS, storage users of OpenStack installation by HP, IBM, Rackspace; not … [Read more...]
How To Install Apache Pig On Ubuntu 16.04
Apache Pig is intended for analyzing large data sets. Usually we combine Pig with Hadoop. The language of Pig is Pig Latin. Apache Pig can execute Hadoop jobs in MapReduce, Apache Tez, Apache Spark. Pig Latin has similarities with SQL for relational database management. Pig Latin can be extended with scripts written in Java, Python, JavaScript, Ruby, Groovy. Here is How To Install Apache Pig On … [Read more...]
DIY Oscilloscope Kit
Previously we talked about Oscilloscope. Any DIY oscilloscope kit is quite challenging and also fun to build. Question is whether they worth buying & what types of kits are available. The other way of building DIY oscilloscope is avoiding these ready to use kits and assemble ownself. Second type is not discussed in this article. DIY Oscilloscope Kit : Basics Most of these … [Read more...]
Docker Tutorial For Beginners : Part 4 (docker compose)
We have previous three guides, one is how to install Docker and run it , second one is on some management GUI and Docker Part 3. docker-compose.yml file is a YAML file that defines how the Docker containers will in production. In Part 4 of Docker Tutorial For Beginners, we will talk about Docker Compose, which peoples say containers in production, docker-compose etc. Docker Tutorial … [Read more...]
Oscilloscope : Functions & Basics
Electrical engineering and electronics has two classic instruments since the beginning of history of the two engineering sciences - oscilloscope and function generator. Oscilloscope is an electronic visualization instrument for graphic representation of the electrical signals which can vary over time. Oscilloscope presents the values of the electrical signals in the form of coordinates in a … [Read more...]
What is Data Refining in Big Data?
Most commonly new developers, particularly who are interested in data analysis face some terminologies which have more to do with theoretical and practical part of engineering and analytical sciences. The developers can be from a variety of domains and the phrases often confuses them. The question what is data refining in big data such an obvious question and answer is commonly written for those … [Read more...]