Tuesday, November 12, 2019

Step by Step Installing CentOS Linux 8 with Screenshots

CentOS Linux 8 is completely free to use and licensed under GNU GPL, It provides all features available in RHEL 8 and support available from the community.

How to Create a Thinly Provisioned Logical Volume on CentOS/RHEL/7/8

Thinly Provisioned Logical volume is one of the advanced feature available in Logical volume Management, We can provision storage more than what we have.

Migrating Logical Volume in Logical Volume Management

Migrating Logical Volume by moving the extents from a PV to another PV when a faulty disk or the size of the disk need to be larger than the current one.

Striped Logical Volume in Logical volume management (LVM)

How to create Striped Logical Volumes in Logical Volume Management to get good I/O performance by balancing the data written to disks.

Shrink a Volume Group in Logical Volume Management (LVM)

Shrink a Volume Group in logical volume management will be performed by sysadmins when the requirement in place to reduce the no of disks from a VG.

How to Extend and Reduce LVM Logical Volume in Linux

How to extend and reduce LVM logical volume management in Linux Operating Systems.

How to Setup iSCSI Target and Initiator on RHEL 7.x / RHEL 8

iSCSI Storage is a block-level storage solution shares the RAW disks over the network. iSCSI target will act as a server and iSCSI initiator will act as the client.

LINUX SECURITY

How to Migrate Existing Iptables to Nftables in RHEL8/CentOS

Iptables can be migrated to nftables without spending time on writing it. Red Hat 8 based operating system provides translate tool to migrate the rules.

How to start using SELinux or Security-Enhanced Linux

SELinux is one of security layer in Linux which protect the directory, files, process and ports with its own labels by preventing unauthorised access.

Generate a CSR Certificate Signing Request in Linux

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LINUX OPERATING SYSTEMS

Step by Step Installing CentOS Linux 8 with Screenshots

CentOS Linux 8 is completely free to use and licensed under GNU GPL, It provides all features available in RHEL 8 and support available from the community.

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SYSTEM MANAGEMENT

Install FOG imaging solution for Linux/Windows and Mac

Fog or "Free Open-Source Ghost" is an open source piece of cake used for imaging solution licensed under GPL.

How to install and register Linux clients with Spacewalk server 2.8

In earlier guides, the server-side setup has been completed. Currently, its time to set up with our client-side installation and configuration. Initially, we need...

How to create Software channels, Repositories, Activation keys and sync in Spacewalk Server 2.8

In our previous article, we have covered with installing and configuring the spacewalk server, by following in this guide we are about to walk...

How to install Spacewalk Linux systems management on RHEL and CentOS Linux 7

A spacewalk is an Open Source Linux System Management solution provided by RedHat under GPLv2 Licence with major features like Inventory and Provisioning.

LINUX AUTOMATION

Ansible tasks for Sysadmins with examples

Ansible tasks are a set of actions, the number of tasks can be combined to form a playbook required for sysadmins in their daily routine operations.

Splunk forwarder installation using Ansible

(adsbygoogle = window.adsbygoogle || ).push({}); Splunk forwarder installation can be accomplished using Ansible. In...

Creating a Logical volume based file system using Ansible

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RunDeck IT automation tool step by step installation guide

RunDeck is an Open source server application to automate our daily IT tasks by replacing tools like Ansible, puppet, chef.

Ansible Playbooks – Managing Groups and User creation using Ansible

Step by step creating with a user adding ansible playbook, Automating user account creation in Linux using Ansible playbooks made easy with Ansible.

LINUX INTERVIEWS

Linux Interview questions and answers for Level 1 role. Those who are looking to be an entry-level Linux admin and preparing for an interview look into it.
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TROUBLESHOOTING

You account are not allowed to access to crontab because of pam configuration.

(adsbygoogle = window.adsbygoogle || ).push({}); In today guide a simple solution for above topic...

The solution for “touch: cannot touch `test.txt’: No space left on device”

In this guide, we are about to provide a simple solution for the titled issue "No space left on device". In case we receive "No...

The solution for setfacl: “Operation not supported” in Linux Servers

We may come across this issue in a production environment while creating with the new file system. This can be resolved without...

How to clear Oracle x86 servers ILOM faulty message

Let us see how to clear the ILOM faulty messages. start the SP console using the command. # start SP/faultmgmt/shell List out all faulty messages. # fmadm faulty Repair the faulty...

WEB SERVERS

Install and configure Apache Tomcat 8.5 on Red Hat7 & CentOS7

Apache Tomcat is an open source technology, which licenced under Apache License version 2. Basically to understand what the use of Tomcat its a...

How to configure logging in Apache Web server

In this guide let us see how to log any required particular logs in Apache web server. To read about Apache related topic click on...

Understanding Apache Web Server logs

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How to install Apache Web Server in Red Hat Enterprise Linux 7 and Variants

In this guide let us see how to install Apache Web Server in RHEL 7, Centos 7, Oracle Linux 7. By following we are going...

RANDOM

Ansible tasks for Sysadmins with examples

Ansible tasks are a set of actions, the number of tasks can be combined to form a playbook required for sysadmins in their daily routine operations.

How to create a host’s Inventory using Ansible

(adsbygoogle = window.adsbygoogle || ).push({}); In this guide, we can see how to create...

31 Yum command for Package Management in Linux

Yum, the command is a package manager used to manage RPM packages in Linux servers. YUM is known as "Yellow-dog Updater Modified" it has several options with arguments to search, install, remove and update the packages.
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Forcing the from address when Postfix relays over SMTP

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Setup a Linux server as IDM client to authenticate with Active Directory

Setup a Red Hat Enterprise Linux or CentOS Linux server as IDM Client to Authenticate with Active Directory using cross-forest trust.

Integrating IDM with AD (Active directory) using indirect cross-forest trust

IDM with Active Directory using Indirect cross-forest trust will help to integrate both and act as an intermediator by providing a lot of features than AD.

Docker Cheat Sheet for Sysadmins

Docker cheat sheet for sysadmins and developers will help to have a quick peek in the case for any future reference. This contains most of all docker options.

How to Connect to Amazon EC2 Remotely Using SSH

Most of the new Amazon web service (AWS) users will be stuck with permission issue while launching an EC2 instance in AWS. This will help to fix it.

Install FOG imaging solution for Linux/Windows and Mac

Fog or "Free Open-Source Ghost" is an open source piece of cake used for imaging solution licensed under GPL.

How to start using SELinux or Security-Enhanced Linux

SELinux is one of security layer in Linux which protect the directory, files, process and ports with its own labels by preventing unauthorised access.

Generate a CSR Certificate Signing Request in Linux

(adsbygoogle = window.adsbygoogle || ).push({}); Introduction Generating a Certificate Signing Request...

How to Create Local Yum Repository on RHEL 8

(adsbygoogle = window.adsbygoogle || ).push({}); In this short how-to guide, we are about to...

Installing RedHat Enterprise Linux 8.0 with screenshots

(adsbygoogle = window.adsbygoogle || ).push({}); Introduction to RedHat Enterprise Linux 8.0

MOST POPULAR

Step by Step Installing CentOS Linux 8 with Screenshots

CentOS Linux 8 is completely free to use and licensed under GNU GPL, It provides all features available in RHEL 8 and support available from the community.

How to Set up a Kubernetes Cluster with Rancher

Rancher is an OpenSource product simplify the management of Kubernetes cluster. Rancher is just a web User Interface to manage the Kubernetes cluster.

How to Install and configure Kubernetes (k8s) on Ubuntu 18.04 LTS

Kubernetes or k8s is trending Open Source container orchestration solution provides feature such as application deployment by automating, scaling etc.

How to Install and Configure Apt Cache Server On Ubuntu 18.04 LTS

Apt Cache Server available for Debian based Operating Systems and it helps to cache the packages installed with apt and saves a lot of bandwidth.
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