Previously we talked about OpenVZ and compared with Xen, KVM virtualization. OpenVZ is Free Software intended for production usage. CentOS or Red Hat Enterprise Linux are practical GNU/Linux distro for certain works. Furthermore, CentOS has lot of users who are using OpenVZ. We can use OpenVZ on dedicated server to create multiple virtual servers. Here is how to install OpenVZ on CentOS to create … [Read more...]
How To Find File On SSH : Examples With Log Files With Conditions
Basically this guide is intended to be a quick reference to the relatively new users who are not easy with using find, locate, du combined with sed, awk, head, tail, unix pipes to find and locate files with some conditions. We can use other GNU tools. We can really extract huge information from log files like we have shown on our guides to check Fail2Ban log (we have a bash script for Fail2Ban log … [Read more...]
Install Apache SystemML Machine Learning System on Ubuntu
Apache SystemML provides a system for machine learning using big data on top of Apache Spark. Previously we described how to install Apache Mahout for building machine learning platform. Here is another solution for machine learning - Apache SystemML. In this guide we will show you how to install Apache SystemML machine learning system on Ubuntu 16.04. SystemML needs a minimum guidance to get … [Read more...]
How To Use Cloud Services For Marketing Goals
Apart from Business Processes as a Service (BPaaS), traditional web tools became cheaper, feature rich with intensive use of cloud computing. This article on how to use cloud services for marketing goals is not a theoretical article with lot of useless usage of phrases rather it is going to focus on the tools anyone can use, sometimes a layer of free of cost - utilising so called cloud computing … [Read more...]
How To Install Anaconda on Ubuntu 16.04
Conda is a binary package manager used by Anaconda and other systems of Python and R. Anaconda commonly used for data processing, scientific computing, predictive analytics by the data scientists, developers, analysts, and peoples working in DevOps. Anaconda has collection of over 700+ F/OSS packages. Conda is the CLI utility of Anaconda. Here is how to install Anaconda on Ubuntu 16.04. Here is … [Read more...]
How To Install Apache Solr 6.x on Ubuntu 16.04
Solr is pronounced as Solar. It is an enterprise search platform built on Apache Lucene. Similar type of software is Elastic Search. Elasticsearch is on same Apache Lucene and more commonly used with Kibana, Beats, and Logstash as Elastic Stack for searching, analyzing and visualizing data. Here is how to install Apache Solr 6.x on Ubuntu 16.04. Apache Solr search platform can be integrated with … [Read more...]
Install Apache TinkerPop (Gremlin Server) With PHP Client
We are talking about TinkerPop3. TinkerPop is graph computing framework offering 3 parts. 3 packaged downloads includes Gremlin Console, Gremlin Server and the source distribution. TinkerPop is slightly confusing to understand to get started. Here is how to install Apache TinkerPop (Gremlin Server) with PHP client on server. Implementations of TinkerPop are Sqlg, Blaze Graph, TinkerGraph, Elastic … [Read more...]
How To Install netdata on Ubuntu 16.04 (Apache2, Cloud Server)
Previously we talked about a good tool named GoAccess for traffic analysis. netdata is similar quality good tool which provides a web ui for monitoring, log analysis and other sysadmin works. Here is how to install netdata on Ubuntu 16.04 running Apache2 on single cloud server. Installing on server running Apache2 is just easy. There is huge documentations on netdata's official Github repo's Wiki. … [Read more...]
How To Install Apache Ambari on Ubuntu 16.04 to Manage Hadoop Cluster
Apache Ambari helps in management, monitoring, provisioning of Hadoop cluster. Here is how to install Apache Ambari on Ubuntu 16.04 to manage Hadoop cluster. Ambari Server uses an embedded PostgreSQL database by default. When we install the Ambari Server, PostgreSQL packages and dependencies must be available for install. We are showing example with repo from Hortonworks for many reasons, one of … [Read more...]
Brute Force SSH Test Own Server With ncrack, hydra, medusa
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...]
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...]