Skip to content
Linux sysadmins

Linux sysadmins

Linux Sysadmins – Linux Guides, Nix Guides, Tutorials, Tips & Tricks.

  • Home
  • Containerization
    • Docker
    • Kubernetes
    • OpenShift | OKD
    • Amazon Web Services
  • Automation
    • Ansible
    • RunDeck
    • SaltStack
  • How to
    • Distros
      • RHEL Linux
      • CentOS Linux
      • Oracle Linux
      • Scientific Linux
      • Debian Linux
    • Servers
      • File Servers
      • FTP Servers
      • DNS Servers
      • DHCP Servers
      • Mail Servers
      • Identity Server
      • Web Servers
        • Apache Server
        • Nginx Server
      • Database Servers
        • MongoDB
        • Oracle Database
    • Virtualization
      • Red Hat Virtualization
      • oVirt Virtualization
      • VMware
    • Linux Clusters
      • Veritas Cluster
      • Pacemaker Cluster
    • Storage Servers
      • Logical Volume Management
      • RAID Storage
      • Openfiler SAN Storage
      • iSCSI Storage
      • Stratis Storage
      • Virtual Data Optimizer
    • System Management
      • Spacewalk Server
      • Server Imaging (Fog)
    • Monitoring Tools
      • Splunk
      • MMonit
    • Security
      • SELinux
      • File System Encryption
    • Linux Networking
    • Troubleshooting
    • Linux Commands
  • Unix & Unix Like
    • Solaris Guides
    • Mac OS x
    • pfSense Router
  • Linux Misc
    • Linux Interview Q&A Level 1
Linux Variant's

Migrating from CentOS 8 to CentOS 8 Stream

Posted on: December 31, 2020March 6, 2022

For anyone who is developing applications to run on Red Hat Enterprise Linux 8, CentOS 8 Stream really is a blessing since you now have access to a stable operating system on which your application will eventually run.

Identity Server

Installing IPA on a Raspberry Pi 4

Posted on: August 12, 2020March 6, 2022

Up and Running IPA server on a Raspberry Pi 4 in few steps.

Cloud & Containerization

Create Windows Server Image for OpenStack

Posted on: January 30, 2020March 6, 2022

Create a Cloud image for OpenStack environment for windows server in QCOW2 format. This solves the purposes of running windows instance in a cloud environment.

Storage Servers

Migrate from single-partition boot device to LVM in CentOS7

Posted on: January 12, 2019March 7, 2022

Convert from a single partition boot device to LVM. File System contains all of the files for Linux and user files into a system need a separate partition for /boot and LVM.

Storage Servers

Installing and Configuring Virtual Data Optimizer (VDO) on CentOS7

Posted on: December 20, 2018March 7, 2022

Virtual Data Optimizer (VDO) is a block virtualization technology that provides transparent deduplication of data. By eliminating redundant chunks of data.

  1. Gerald on Single Node OKD (OpenShift) Setup: A Fast and Easy GuideDecember 15, 2024

    Hi, in the 'Starting with Bootstrapping' step I have this error: DEBUG Still waiting for the Kubernetes API: Get "https://api.xxx.local:6443/version":…

  2. jos on How to Configure Sudo email alertMarch 4, 2022

    Hi! Some way to send commands write as root by email? Thanks!

  3. paul on Monitoring Proxmox with InfluxDB and Grafana in 4 Easy stepsMarch 1, 2022

    Tried 12966 per your example, got error "failed to import dashboard."

  4. Anonymous on Migrate existing Iptables to Nftables in RHEL8/CentOSFebruary 27, 2022

    I followed the procedures and successfully loaded some weird 8081 port configurations needed for the app, however I discovered it…

  5. sy on Install Ansible AWX on Kubernetes in 5 minutesFebruary 17, 2022

    tried many times - followed all steps but was unable to setup custom context I always get -> The connection…

Ansible (11) Apache (5) Docker (7) foreman (5) IDM Server (7) Kubernetes (14) linux commands (5) Linux networking (10) Linux Security (5) Logical Volume Management (13) OpenShift (8) Oracle Database (5) Solaris 11 (4) Solaris OS (6) VMware (5)

  • OKD Cluster (OpenShift) Installation on Bare Metal
  • Configuring HAProxy LB for OKD HA Cluster
  • Configuring DHCP Server for OKD HA Clusters
  • Configuring BIND DNS Server for OKD HA Clusters
  • About
  • Contact
  • Copyright Policy
  • Privacy Policy
  • Facebook
  • YouTube
  • GitHub
  • Pinterest
Theme Cube Blog by Kantipur Themes
Go to mobile version