Articles by Deepak Prasad
How to change tmpfs partition size in Linux ( RHEL / CentOS 7 )
Increase decrease, change tmpfs partition size in Red Hat Linux 7, /run /run/user/$PID /dev/shm /sys/fc/cgroup using fstab RuntimeDirectorySize logind.conf
How to create custom tuned profile in Linux ( RHEL / CentOS 7 )
Get an overview of tuned profile tuned-adm and steps to create custom tuned profile in Red Hat or CentOS 7. List tuned profiles configure own tuned profile
OpenStack Command Line Cheat Sheet (Beginner's Guide)
OpenStack command line cheat sheet for begineer. This CLI cheat sheet consists of Flavor, Identity, Compute Nova, Neutron Network, Block Storage, Guestfish
How to configure or build ceph storage cluster in Openstack ( CentOS 7 )
Step by step guide to build ceph storage cluster in Openstack CentOS 7 Linux on virtual machine. Confiure OSD, mon using ceph-deploy tool for ceph cluster
How to PROPERLY check memory usage per process in Linux?
Check memory usage per process in Linux using top, ps, smem tool. This will give memory usage detail of all the process / application running on Linux
Beginners Guide on systemd tutorial in Linux
Overview on systemd unit file. Create your own systemd service unit file with example. Difference between Requires, Wants and Conflicts in unit file
Fail2ban SSH config on Ubuntu 18.04 and RHEL/CentOS 8
5 steps guide to Install and configure fail2ban SSH on RHEL/CentOS 7/8 Ubuntu 18 with examples. Fail2ban log rotation list banned ip firewall iptables multiport …
How to install Oracle Virtual Box on Linux (CentOS / RHEL 7)
Step by step Guide to install Oracle Virtual Box on RHEL / CentOS 7 Linux. To install Oracle Virtual Box you need EPEL repo. Oracle Virtual 5.2 is out now
Simple steps to install & configure ClamAV in CentOS 7
Step by step guide to install and configure ClamAV on CentOS / RHEl 7 Linux. ClamAV is an open source antivirus tool to protect against trojan, viruses etc
How to configure PXE boot server in Linux ( CentOS / RHEL 7 )
Step by step guide to configure PXE boot server using dnsmasq, dhcp, http, tftp- server in CentOS / RHEL 7 Linux using kickstart to automate the installation
Steps to Install and configure Controller Node in OpenStack – Part 2
Part 2 of step by step guide to install and configure controller node in openstack. To configure controller node in openstack we will configure glance, nova
Steps to Install and configure Controller Node in OpenStack - Part 1
Step by step guide to install and configure controller node in openstack, configure openstack services like keystone, mariadb, rabbitmq, environment files
Understanding resource group and constraints in a Cluster with examples
Understand resource group and constraints with examples in Cluster. Different types of constraint, adding existing resource to group, High Available Cluster
Guide to troubleshoot Cluster Resource (RHEL / CentOS 7)
Configure high availability cluster, create cluster resource and troubleshoot cluster resource for a cluster on Red Hat / CentOS 7 with examples.
Configure High Availability Cluster in CentOS 7 (Step by Step Guide)
Step by Step guide to configure high availability cluster in CentOS or Red Hat 7 using pacemaker and corosync, 3 node HA Cluster on Virtual Box or KVMs..