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

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Linux Administration

How to Configure a Network Interface on CentOS7 and RHEL7/8

Posted on: August 20, 2019March 6, 2022

Step by step guide to configure a network interface on Linux Operating Systems using command line tool nmcli. This guide applied for RHEL, CentOS & Oracle.

Linux Administration

Rsync (Remote Sync) | 20 Rsync command with Examples in Linux

Posted on: August 16, 2019March 6, 2022

Rsync or Remote sync in Linux help to securely copy the files from any remote servers to a local server, It can be used as a poor mans Linux backup tool.

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 Administration

Using AppStream with yum in Red Hat Enterprise Linux 8

Posted on: March 2, 2019March 6, 2022

AppStream and yum in Red Hat Enterprise Linux 8 helps to perform the safest way of installing packages using a module method with Streams and profiles.

Linux Administration

31 Yum command for Package Management in Linux

Posted on: February 3, 2019March 6, 2022

yum 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.

Linux Administration

Install Oracle Java JDK on RHEL 7/CentOS 7

Posted on: December 5, 2018March 7, 2022

Java used in every device across the production and development environment, Java lets you develop and deploy Java applications on desktops and servers.

Change systemd network interface name ensxx to eth0
Linux Administration

Change systemd network interface name ensxx to eth0

Posted on: October 16, 2018March 6, 2022

Changing systemd network interface name (ensxx) in RHEL and CentOS to a legacy naming convention eth0.

Create and mount filesystems in Linux
Linux Administration

Create and mount filesystems in Linux

Posted on: October 2, 2018March 6, 2022

In this guide lets see how to create a different filesystem and mount it in Linux, the following steps can be followed in almost all Linux flavours. We […]

FDISK to partition the disks in Linux
Linux Administration

FDISK to partition the disks in Linux

Posted on: September 22, 2018March 6, 2022

Introduction: Maybe this can be well known to you. Still, many of them wonder how to work with “fdisk” utility. Today’s guide we are focusing on how to […]

How to Completely disable IPv6 in Linux
Linux Administration

How to Completely disable IPv6 in Linux

Posted on: August 7, 2018March 6, 2022

A short guide about how to disable IPv6 in most of linux distributions.

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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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