Author Archives: Amit Vashist

About Amit Vashist

Amit Vashist is someone who brings with him a treasure full of experience of over 8 years in open source technologies. When it comes to virtualization he has single handedly managed end-to-end migration projects in KVM and Xen that involved right from sizing the systems to P2V of existing physical servers. He understands what can go wrong in virtualized world and how to take care of it. He also has root level knowledge on Red Hat platforms and has commissioned & Lamp; Provides Corporate Training over Red Hat HA clusters. Now days Supporting Telecom Giant Billing & Support system, gaining experience on JBoss, Splunk, SQL, Nagios, Apache & Fuse ..etc.

Getting Started with ELK

Setting Up ELK To Centralize & Visualize Logs Lets setup the below mentioned key components one by one: Logstash: The server component of Logstash that processes incoming logs Elasticsearch: Stores all of the logs Kibana: Web interface for searching and … Continue reading

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What is ELK ??

The ELK Stack ELK stands for Elasticsearch Logstash and Kibana which are technologies for creating visualizations from raw data. Elasticsearch Elasticsearch is a distributed, open source search and analytics engine, designed for horizontal scalability, reliability, and easy management. It combines … Continue reading

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Verify Certificate

How to verify certificate & it content with the help of openssl set of commands.  1. Verify the subject and issuer of a certificate [root@fedora101 CA]# openssl x509 -subject -issuer -enddate -noout -in /tmp/fedora101.crt subject= /C=IN/ST=UP/O=Plentree Enterprise Ltd/CN=Amit Vashist/emailAddress=plentree.ca@vashist.com issuer= … Continue reading

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Certificate Signing Request

Certificate Signing Request In public key infrastructure (PKI) systems, a certificate signing request (also CSR or certification request) is a message sent from an applicant to a certificate authority in order to apply for a digital identity certificate. The most … Continue reading

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OpenSSL

OpenSSL Project The OpenSSL Project is a collaborative effort to develop a robust, commercial-grade, full-featured, and Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS) protocols as well as a full-strength general purpose cryptography … Continue reading

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Deploy and Manage Your Docker Containers with Cockpit

Project Atomic integrates the tools and patterns of container-based application and service deployment with trusted operating system platforms to deliver an end-to-end hosting architecture that’s modern, reliable, and secure. Cockpit A remote manager for GNU/Linux servers Cockpit is a server … Continue reading

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Getting Started with Docker

How To Install and Use Docker Docker is an open-source project that makes creating and managing Linux containers really easy. Containers are like extremely lightweight VMs – they allow code to run in isolation from other containers but safely share … Continue reading

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