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Linux sysadmins

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

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System Management

Install FOG Imaging solution for Linux/Windows and Mac

Posted on: June 12, 2019March 6, 2022

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

Security

How to start using SELinux or Security-Enhanced Linux

Posted on: June 6, 2019March 6, 2022

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

Security

Generate a CSR Certificate Signing Request in Linux

Posted on: May 11, 2019March 6, 2022

Generating a Certificate Signing Request (CSR) for Secure Sockets Layer (SSL) Certificate required when we need to sign with a Certificate Authority (CA).

Linux Administration

How to Create Local Yum Repository on RHEL 8

Posted on: May 9, 2019March 6, 2022

Set up a local Yum repository on RedHat Enterprise Linux 8 and CentOS 8 using a DVD or ISO file, This helps us to get the packages offline and ready to install.

Linux Variant's

Installing RedHat Enterprise Linux 8.0 with screenshots

Posted on: May 8, 2019March 6, 2022

RedHat Enterprise Linux 8.0 a Hybrid Cloud Operating System from Red Hat for containers, Artificial Intelligence and much more.

Cloud & Containerization

Creating an HA Docker Swarm over AWS

Posted on: April 22, 2019March 6, 2022

Introduction Hello everyone!!! In this post, we will be discussing Docker Swarm creation over AWS. As we all know, Docker is a technology that allows you to build, […]

Automation

Splunk forwarder installation using Ansible – easy install in 1 min

Posted on: April 13, 2019March 6, 2022

Automating Splunk forwarder installation using Ansible. To manage hundreds or thousands of remote servers we can use ansible.

Ubuntu Linux

15 dpkg commands to Manage Debian based Linux Servers

Posted on: April 12, 2019March 6, 2022

dpkg is the package manager for Debian based Linux servers. We can manage an installed package in Ubuntu/Debian Linux server by using dpkg command.

Troubleshooting

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

Posted on: April 9, 2019March 6, 2022

A password expiry error will be thrown, account are not allowed to create a cron job by saying PAM configuration in place.

Storage Servers

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

Posted on: April 4, 2019March 6, 2022

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.

Posts pagination

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  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
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