SQLLine is a Java console based for connecting to databases to execute SQL commands. This is a helper tutorial for other guides. Here is How to Install SQLLine on Ubuntu For Using With Big Data Tools. SQLLine depends on Java Virtual Machine, JLine console reader, JDBC driver (any JDBC compliant driver can be used). Of course we can use the same way of installation on Windows 10 Bash and Android … [Read more...]
Cloud Computing
Cloud computing is becoming more and more important. Here are articles on Cloud Computing,Cloud Server,SaaS,PaaS,IaaS and Cloud related technology.
How to Install Chamilo on Ubuntu Server (Learning Management Software)
Chamilo is a free software for e-learning. Chamilo runs on a LAMP server and easy to install. There are several LMS (learning management system) and similar software but Chamilo is easier and popular. Here is How to Install Chamilo on Ubuntu Server. Any learning management system (LMS) provides way for administration, documentation, tracking, reporting and delivery of educational courses or … [Read more...]
How To Install Apache HBase : Ubuntu Single Cloud Server Instance
Apache Hbase is column-oriented distributed datastore. Previously, we have shown installing Apache Accumulo. Accumulo is distributed key/value store, built on Hadoop. In another guide we have shown how to install Apache Cassandra. Cassandra is a column-oriented distributed datastore, inspired by BigTable. We have sown how to install Hadoop on single server instance. We can install Hbase without … [Read more...]
Safer Value of HPKP and HSTS (And Why You Should Avoid)
It is unbelievable article title as we used to promote HPKP and HSTS since they are introduced. Majority of the websites used HPKP aka Public Key pinning unfortunately faced troubles, including us (which we published as guide), well known sites such as Smashing Magazine, Scott Helme's website. Most of these websites has published their experience of such bad incidence to warn the others. HPKP … [Read more...]
How to Install or Renew SSL Cert on Ubuntu 18.04, Apache 2.4 (GeoTrust/RapidSSL/Comodo)
Although we have detailed guide on the same topic, there is necessity of an updated detailed guide for many users. Here Are the Detailed Steps & Commands on How to Install or Renew SSL Cert on Ubuntu 18.04, Apache 2.4. SSL Cert Provider Can Be GeoTrust, RapidSSL, Comodo Like CA. For this guide, we are assuming that the reader can manage own server via SSH and used with basic server management. … [Read more...]
Solve NET::ERR SSL PINNED KEY NOT IN CERT CHAIN
It is a wrong error out of caching by browser. It is not what really the site is. If the site is bad then your antivirus, antimalware will deliver warning. Our site at this moment facing NET::ERR_SSL_PINNED_KEY_NOT_IN_CERT_CHAIN error out of overlooked public key pinning on Google Chrome, Android etc browsers out of unmatched pin values before the expirary of our GeoTrust SSL Certificate. We do … [Read more...]
How is Cloud Computing Profitable For Website Hosting?
Cloud Computing in website hosting is mainly falls in the category of being IaaS, however some among them uses PaaS and the websites use other cloud services like DNS and CDN, which are also among the cloud. How is Cloud Computing Profitable For Website Hosting? For practical reason, we are considering only IaaS and comparing with traditional dedicated server. How is Cloud … [Read more...]
How to Install Apache Ignite on Ubuntu Server
Previously we described How Install Apache Cassandra. Apache Ignite is a distributed database, caching and processing platform. Apache Ignite utilizes RAM as it's default storage and processing tier making it included in the class of in-memory computing platforms. Data in Ignite is stored in the form of key-value pairs. The database component scales horizontally. How to Install Apache Ignite on … [Read more...]
Analysis of Docker in DevOps : Part III (END)
This is the final part of Analysis of Docker in DevOps. In part I of Analysis of Docker in DevOps, we discussed the basic terms and concepts around Docker and DevOps for revision. In part II of Analysis of Docker in DevOps, we had a discussion on different types on requirements on Docker and DevOps. In this final part, we will discuss matters like Employee Onboarding, Platform independence, … [Read more...]
Analysis of Docker in DevOps : Part II
In first part of the series of articles on Analysis of Docker in DevOps, we discussed the basic terminologies and concepts around Docker and DevOps. As per our previously declaired plan, Dockers implementation will be discussed after discussing the specific requirements within software projects. In this part, requirements will be discussed. IT has several requirements to fulfill, needs to go … [Read more...]
Analysis of Docker in DevOps : Part I
In our previous series of article, we discussed about Basics of DevOps, Virtualization Requirements for DevOps and Docker Tutorial For Beginners. Analysis of Docker in DevOps is a Series of Articles to Discuss the Solving Problems Arising within DevOps and Possible Fields of Application. This articles highlights some of the problems which IT-companies face. Due to the increasing merger of formerly … [Read more...]