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
Virtualization

Proxmox VM migration failed with Permission denied (publickey,password) quick fix

Posted on: August 7, 2020March 6, 2022

Quick fix for the Proxmox VM migration failed with error “Permission denied (publickey, password)”

Cloud & Containerization

Create a Rolling Update Kubernetes Deployment in 3 ways

Posted on: May 25, 2020March 6, 2022

Kubernetes Deployment will help to bring up our Application online in a short span of time with the number of designated Replica sets.

Cloud & Containerization

How to Create a Kubernetes Pod

Posted on: May 24, 2020March 6, 2022

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.

Monitoring Tools

Install and Configure Collectd Monitoring on Linux

Posted on: May 24, 2020March 6, 2022

Start Monitoring your production environment using collectd to collects the system and application performance metrics.

Storage Servers

Introduction to Software RAID and RAID Levels in Linux

Posted on: May 22, 2020March 6, 2022

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.

System Management

Provisioning Bare Metal and VM from Foreman in 6 easy steps

Posted on: May 18, 2020March 6, 2022

By Provisioning Bare metal and virtual machines, We can automate the process of installing an Operating system with the help of Foreman.

Linux Administration

Configure Network Teaming in RHEL/CentOS8

Posted on: May 12, 2020March 6, 2022

Network Teaming or Link Aggregation, The mechanism of the teaming is by including multiple NIC’s into one.

Storage Servers

Moving a Volume Group from one Server to another Server

Posted on: May 10, 2020March 6, 2022

Moving a Volume group from one system to another system without missing any underlying logical volumes and file systems.

Security

Import RPM Signing GPG keys on CentOS 8

Posted on: May 8, 2020March 6, 2022

GPG Keys or GNU Privacy Guard is used to making sure that we are getting the right package from a trusted repository.

Virtualization

Up and running oVirt 4.3 on CentOS 7

Posted on: May 6, 2020March 6, 2022

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.

Posts pagination

Previous page Page 1 … Page 6 Page 7 Page 8 … Page 23 Next page
  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