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Create a Rolling Update Kubernetes Deployment in 3 ways
Kubernetes Deployment will help to bring up our Application online in a short span of time with the number of designated Replica sets.
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Introduction to Software RAID and RAID Levels in Linux
Physical RAID or Software RAID (Redundant array of independent disks are used for reliability, resilience and performance. The most important part is to save our precious data without losing it in a production platform.
Moving a Volume Group from one Server to another Server
Moving a Volume group from one system to another system without missing any underlying logical volumes and file systems.
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 Volumes 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 (LVM2)
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.
LINUX SECURITY
Import RPM Signing GPG keys on CentOS 8
GPG Keys or GNU Privacy Guard is used to making sure that we are getting the right package from a trusted repository.
Install Wazuh Open Source Security Analytics
Install production-ready Wazuh OpenSource security analytics tool to monitor your critical production environment.
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.
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.
SYSTEM MANAGEMENT
Provisioning Bare Metal and VM from Foreman in 6 easy steps
By Provisioning Bare metal and virtual machines, We can automate the process of installing an Operating system with the help of Foreman.
Register a Linux client with Foreman
How to subscribe a client with our content management server foreman/Katello/Satellite.
Install Foreman Katello Patch Management on CentOS 7
Foreman with katello patch management is a Content Management System provides a lot of features such as provisioning, Inventory, Patch management and much more.
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.
LINUX AUTOMATION
Ansible tasks for Sysadmins with 25 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...
Create a Logical volume using Ansible
(adsbygoogle = window.adsbygoogle || ).push({}); In our last guide, we have seen how to...
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 Playbook to create Users and Groups in Linux
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
Recover from Starting Switch Root or corrupted Glibc
While starting the server it will not move forward after "Starting Switch Root". Step by Step let's see how to fix this issue.
Recover from chmod 777 permission on a root filesystem
How to Recover from accidentally running chmod -R 777 / on any RPM-based Linux Operating systems.
How to fix Grub Rescue in CentOS and RHEL 7
A fix for boot issue (Grub rescue) will be carried out by sysadmins by following few steps. A brief guide on how to recover GRUB and UEFI based servers.
Your 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...
WEB SERVERS
Install and configure Apache Tomcat 8.5 on RHEL & CentOS7
Ahmad Wamiq - 2
Apache Tomcat is an open-source technology, which licensed under Apache License version 2. Basically to understand what the use of Tomcat it's a simple HTTP server used for Java Servlet, JavaServer Pages, Java Expression Language.
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
(adsbygoogle = window.adsbygoogle || ).push({}); In our earlier topic, we have seen how to...
Setup Apache Web Server on RHEL and CentOS7
(adsbygoogle = window.adsbygoogle || ).push({}); Introduction to Apache Web Server In...
RANDOM
Solaris
Find Serial number in Solaris 11 x86_64
How to find Serial Number in Solaris 11 server. # ipmitool fru # fmadm faulty
Linux Administration
How to compile and install OpenvSwitch in Linux
Open vSwitch is a multilayer virtual switch licensed under the open source. Which has the level of production level quality with VLAN, traffic shaping...
System Management
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...
LATEST ARTICLES
Create a Rolling Update Kubernetes Deployment in 3 ways
Kubernetes Deployment will help to bring up our Application online in a short span of time with the number of designated Replica sets.
How to Create a Kubernetes Pod
Creating our first Kubernetes Pod on our new Kubernetes cluster in some available methods. Let's see how to generate a YAML file from the created Pod as well.
Install and Configure Collectd Monitoring on Linux
Start Monitoring your production environment using collectd to collects the system and application performance metrics.
Introduction to Software RAID and RAID Levels in Linux
Physical RAID or Software RAID (Redundant array of independent disks are used for reliability, resilience and performance. The most important part is to save our precious data without losing it in a production platform.
Provisioning Bare Metal and VM from Foreman in 6 easy steps
By Provisioning Bare metal and virtual machines, We can automate the process of installing an Operating system with the help of Foreman.
Configure Network Teaming in RHEL/CentOS8
Network Teaming or Link Aggregation, The mechanism of the teaming is by including multiple NIC's into one.
Moving a Volume Group from one Server to another Server
Moving a Volume group from one system to another system without missing any underlying logical volumes and file systems.
Import RPM Signing GPG keys on CentOS 8
GPG Keys or GNU Privacy Guard is used to making sure that we are getting the right package from a trusted repository.
Up and running oVirt 4.3 on CentOS 7
oVirt is a free Enterprise ready OpenSource Virtualization platform. The author of Ovirt is Red Hat and developed on Java, which is licensed under Apache License 2.0.
How to access Kubernetes Dashboard ( Web UI)
To get a rich graphical view of Kubernetes cluster, we need to deploy a few pods, replica, service and much more, Which allow to access Kubernetes dashboard.
MOST POPULAR
Create a Rolling Update Kubernetes Deployment in 3 ways
Kubernetes Deployment will help to bring up our Application online in a short span of time with the number of designated Replica sets.
How to Create a Kubernetes Pod
Creating our first Kubernetes Pod on our new Kubernetes cluster in some available methods. Let's see how to generate a YAML file from the created Pod as well.
Install and Configure Collectd Monitoring on Linux
Start Monitoring your production environment using collectd to collects the system and application performance metrics.
Introduction to Software RAID and RAID Levels in Linux
Physical RAID or Software RAID (Redundant array of independent disks are used for reliability, resilience and performance. The most important part is to save our precious data without losing it in a production platform.
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