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

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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 Clusters

Install VERITAS Cluster 7.4.1 on RHEL 7.6

Posted on: February 20, 2019March 6, 2022

Setting up VERITAS cluster server on Red Hat Enterprise Linux for a robust High availability server, Installing from YUM are available for VERITAS Setup.

Storage Servers

Creating Software RAID and Volumes on Openfiler Storage

Posted on: February 19, 2019March 6, 2022

Openfiler to setup a poor man’s Storage setup by creating Software RAID, Volumes, Block devices and sharing them across a network range.

Storage Servers

Manage Stratis layered storage on Red Hat Enterprise Linux 8

Posted on: February 12, 2019March 6, 2022

Stratis is a new local storage management tool help to create layered storage on top of block devices. Manage stratis using its own CLI tool.

Storage Servers

Stratis to create layered storage in RedHat Enterprise Linux 8

Posted on: February 7, 2019March 6, 2022

Stratis is a new local storage management tool help to create layered storage on top of block devices. It has its own CLI tool to create the pool and fs.

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.

Database Servers

Install MongoDB Replication setup on CentOS 7 and RHEL 7

Posted on: January 25, 2019March 6, 2022

MongoDB Replication sets are basically multiple mongod processes running on multiple servers that maintain the same data set highly available.

Database Servers

How to Install MongoDB 4.0.5 on CentOS and Red Hat7

Posted on: January 20, 2019March 6, 2022

MongoDB is a cross-platform program, commonly referred to as a document-oriented database. It uses a JSON-like documents format.

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.

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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