Author: admin1

How to set ulimit and file descriptors limit on Linux Servers 0

How to set ulimit and file descriptors limit on Linux Servers

Introduction:  Challenges like number of open files in any of the production environment has become common now a day. Since many applications which are Java based and Apache based, are getting installed and configured,...

How to Download and Use Ansible Galaxy Roles in Ansible Playbook 0

How to Download and Use Ansible Galaxy Roles in Ansible Playbook

Ansible is tool of choice these days if you must manage multiple devices, be it Linux, Windows, Mac, Network Devices, VMware and lot more. What makes Ansible popular is its agent less feature and...

How to Setup Local Yum/DNF Repository on RHEL 8 Server Using DVD or ISO File 0

How to Setup Local Yum/DNF Repository on RHEL 8 Server Using DVD or ISO File

Recently Red Hat has released its most awaited operating system “RHEL 8“, in case you have installed RHEL 8 Server on your system and wondering how to setup local yum or dnf repository using...

Ubuntu 19.04 (Disco Dingo) Desktop Installation Guide with Screenshots 0

Ubuntu 19.04 (Disco Dingo) Desktop Installation Guide with Screenshots

Canonical has released its non-LTS Ubuntu 19.04 Operating system for Desktop and Servers on 18th April 2019, Code name for Ubuntu 19.04 is “Disco Dingo”. As it is non-LTS release, so we will get...

Quick Guide on Docker Utilities, Daemon and its other capabilities 0

Quick Guide on Docker Utilities, Daemon and its other capabilities

Introduction Docker is playing very critical role as both a packaging format for the applications and a unifying interface and methodology that enables the application team/s to own the Docker-formatted container images (Note: It...

How to Install and Configure OTRS (Ticketing Tool) on CentOS 7 / RHEL 7 0

How to Install and Configure OTRS (Ticketing Tool) on CentOS 7 / RHEL 7

OTRS is a free and open source ticketing tool available for Linux like operating systems. OTRS stands for “Open Source Trouble Ticket System“. In opensource world it is one of the most popular trouble...

Configure two node Squid (Proxy Server) Clustering using Pacemaker on CentOS 7 / RHEL 7 0

Configure two node Squid (Proxy Server) Clustering using Pacemaker on CentOS 7 / RHEL 7

As we all know that squid is a caching proxy server which supports the protocols like HTTP, HTTPS, FTP and more. In other words, squid is known as a web proxy server which helps...

How to Install and Configure KVM on OpenSUSE Leap 15 0

How to Install and Configure KVM on OpenSUSE Leap 15

KVM is virtualization module that is loaded inside the Linux kernel and then linux kernel start working as a KVM hypervisor. KVM stands for Kernel based Virtual Machine. Before start installing KVM on any...

Learn and use fork(), vfork(), wait() and exec() system calls across Linux Systems 0

Learn and use fork(), vfork(), wait() and exec() system calls across Linux Systems

It is found that in any Linux/Unix based Operating Systems it is good to understand fork and vfork system calls, how they behave, how we can use them and differences between them. Along with...

Quick guide to Install and Configure Ceph (Distributed Storage) Cluster on CentOS 7 0

Quick guide to Install and Configure Ceph (Distributed Storage) Cluster on CentOS 7

Ceph is free and open source distributed storage solution through which we can easily provide and manage block storage, object storage and file storage. Ceph storage solution can be used in traditional IT infrastructure...