RSSCategory: LINUX HOWTO

lnav - Tool to View and Analyze Log Files from Linux Terminal

The Log File Navigator ( abbreviated as "lnav" ) is a tiny useful utility which helps users take an easy and cleaner look at system's log files. It is a freeware application which runs on Linux and Mac operating systems. For system administrators or any Linux desktop user, identifying system or application errors are possible […]

Posted on : February 28, 2017 , Last Updated on : March 1, 2017 By in OPEN SOURCE TOOLS
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How to Setup Openshift Origin on CentOS 7.2

OpenShift Origin is the open source upstream project that powers OpenShift, Red Hat's container application platform. It provides support for Python, PHP, Perl, Node.js, Ruby, and Java and is extensible so that users can add support for other languages. The resources allocated for applications can be automatically or manually scaled as per required so that […]

Posted on : February 27, 2017 , Last Updated on : March 1, 2017 By in OPEN SOURCE TOOLS
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Fasd - Alternative Tool for Autojump to Quick Access Linux Filesystem

Fasd is a command-line productivity booster that offers quick access to linux files and directories for POSIX shells (Portable Operating System Interface). It is the similar tool like autojump, z and v used to navigate filesystem. Fasd keeps track of files and directories you have accessed, so that you can quickly reference them in the […]

Posted on : February 23, 2017 , Last Updated on : February 23, 2017 By in OPEN SOURCE TOOLS
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A Better Way To Take Screenshot on Linux using PMSS

PMSS (Poor Man's Screenshooter) is a command line utility which makes capturing screenshots a piece of cake. It is a small, freeware, easy to use shell script which hardly consumes any system resources. It uses well know Linux command line utility, Scrot , on the backend. In order to understand the effectivity of PMSS, lets […]

Posted on : February 22, 2017 , Last Updated on : February 21, 2017 By in OPEN SOURCE TOOLS
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How To Copy / Paste Command's Output using Xclip on Linux

Clipboard is a very useful utility in modern day operating systems. Clipboard technology uses the method of copy and paste to temporary store and transfer data between different applications or documents. If you are using GUI  based Linux operating system than copy and paste operation is seamless, however, command line users of Linux operating system […]

Posted on : February 21, 2017 , Last Updated on : February 20, 2017 By in OPEN SOURCE TOOLS
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How to Use BCC Kernel Tracing Tools for Linux Performance Analysis

Greetings, BCC is now available for Ubuntu and in this article we will be showing you its extended command line use to trace Linux systems for performance monitoring. The BPF Compiler Collection (BCC) is a toolkit for building kernel tracing tools that leverage the functionality provided by the Linux extended Berkeley Packet Filters (BPF). BPF […]

Posted on : February 15, 2017 By in TROUBLESHOOTING
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Learn Linux Tricks to Generate Checksums and Verify Data Integrity

The checksum is used to verify the correctness of a file. It can be described as a digital fingerprint of a file. By verifying the Checksum value we can determine the correctness of a file while it's been transferred from one location to another. The checksum is a long string of data containing various letters […]

Posted on : February 15, 2017 , Last Updated on : February 14, 2017 By
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How to Take Screenshots Using Shots on Elementary OS and Ubuntu

In this article we are going to introduce a node.js and electron based application called shots, which is used to take screenshots on linux desktop. This package offers quite few more features compared to Ubuntu's built in screenshot tool. So lets start by installing perequisites. Install prerequisites We are going to install shots to Ubuntu, but you […]

Posted on : February 14, 2017 , Last Updated on : February 13, 2017 By
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How to Setup OpenVPN Access Server on AWS

This article covers how to setup OpenVPN access server using amazon's machine image. OpenVPN is an open source application that uses a VPN method for creating a secure connection between point-to-point OR site-to-site connections in bridged/routed mode. It uses SSL and TLS connections to traverse NAT connections and firewalls. OpenVPN has been ported to embedded […]

Posted on : February 9, 2017 , Last Updated on : February 9, 2017 By in SECURITY
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Docker Commands Cheat Sheet Part 1 and 2

The idea of using container was made possible by the namespaces feature added to Linux kernel version 2.6.24. Namespaces allows to create an isolated container that has no visibility or access to objects outside the container. LXC, LXD, systemd-nspawn, Linux-VServer, OpenVZ and Docker are some of the management tools for Linux containers. Main difference between […]

Posted on : February 8, 2017 , Last Updated on : February 18, 2017 By in CONTAINERS
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How to Setup DNS Server with Docker Container

A Dockerfile is used to create a Docker container image, this will be used to created the DNS Server. An easy way to setup a basic DNS server with Docker is to use the BIND DNS server bundled with the Webmin interface. In this article we cover how to implement DNS server using docker container. BIND […]

Posted on : February 2, 2017 , Last Updated on : February 6, 2017 By in LINUX HOWTO
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How to Setup NGINX as Reverse Proxy Using Docker

A reverse proxy server is a server that typically position itself behind the firewall in a private network and retrieves resources on behalf of a client from one or more servers. A reverse proxy provides an additional level of abstraction like SSL termination, load balancing, request routing, caching, compression etc. It also provides control to […]

Posted on : January 23, 2017 , Last Updated on : January 23, 2017 By in LINUX HOWTO
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How to Stop, Remove and Clean up Docker

Are you new to docker? then running and maintaining docker applications is easy. This article explains how to stop docker container applications using docker stop, docker-compose stop and docker kill. docker-compose comes handy when managing a complex multi container docker application. If you have docker services or images running on your system you can verify […]

Posted on : January 18, 2017 By in LINUX HOWTO
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How to Setup Mosquitto MQTT Server on Ubuntu 16.04

Mosquitto MQTT Server is a message broker which works over MQTT protocol. MQTT is lightweight messaging protocol that is ISO standard for use on top of TCP/IP protocol.  It is mostly used for communicating with Internet of Things devices. We are going to install Mosquitto on a Ubuntu 16.04 server and we are going to send […]

Posted on : January 17, 2017 By in LINUX HOWTO
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