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Apache Hadoop is an open-source software framework written in Java for distributed storage and distributed process, and it handles the very large size of data sets by distributing it across computer clusters. Rather than rely on hardware high availability, Hadoop modules are designed to detect and handle the failure at the application layer, so gives […]
Log.io is the real-time monitoring tool, powered by node.js and socket.io. Log.io offers a simple web interface for monitoring the server logs. This guide will help you to monitor server log with log.io on CentOS 7 / RHEL 7. Configure EPEL repository: We will use npm for installing Log.io, so lets install npm and node.js, […]
BIND can be configured as master or slave to serve the DNS request for each zone. When the BIND is configured as a slave, it obtains the copy of zone data from the master server by using the zone transfer method. In the previous post, we had configured the DNS server on CentOS 7 which […]
The Domain Name System (DNS) is a hierarchical distributed naming system for computers, services, or any resource connected to the Internet or a private network. It associates various information with domain names assigned to each of the participating entities. Most importantly, it translates domain names meaningful to humans into the numerical identifiers associated with networking […]
SSH is a client and server protocol, and it helps us to access the remote system over the network through the encrypted tunnel. Whenever the client machine accesses the server running SSH, the client downloads the secure key from the server, and at the same time, the server also downloads the key from the client. […]