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

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Linux Administration

Setup a Linux server as a NAT router to share the Internet | 1 Easy guide

Posted on: March 18, 2021March 6, 2022

Setup a Linux Desktop/Server to act as a NAT router. A Simple step by step guide will help with getting the internet on clients servers.

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.

Linux Administration

How to create a Linux Network Bridge on CentOS/RHEL7

Posted on: August 31, 2019March 6, 2022

Linux Network Bridge is a device that separates two or more network segments within one logical network and behaves like an L2 Switch but really it’s not.

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.

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.

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.

How to Create VLAN Interface for RHEV Virtualization
Virtualization

How to Create VLAN Interface for RHEV Virtualization

Posted on: August 12, 2017March 6, 2022

While we doing some initial configuration for Red Hat Virtualization, Ovirt Virtualization, OpenStack we required to configure interfaces using the Non-Persistent method. To do that we can go […]

Linux Administration

How to compile and install OpenvSwitch in Linux

Posted on: April 15, 2017March 6, 2022

Open vSwitch is a multilayer virtual switch licensed under the open source. Which has the level of production level quality with VLAN, traffic shaping etc. Open VSwitch come […]

Troubleshooting

resolvconf: Error: /etc/resolv.conf isn’t a symlink, not doing anything

Posted on: December 30, 2016March 6, 2022

If we get this error in Ubuntu while restarting network service. Here /etc/resolv.conf is a file move it to /run/resolvconf/resolv.conf.   # sudo mv /etc/resolv.conf /run/resolvconf/resolv.conf Then create […]

Linux Administration

Enable setup command in minimal installed Redhat or Centos 6 Linux

Posted on: December 28, 2016March 6, 2022

In minimum install setup, the command will not be enabled because it installed with limited packages. When we try to run “setup” command if we get below command […]

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

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

  2. 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."

  3. 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…

  4. 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…

  5. Faraz Ahmed on Prometheus with Grafana for Linux server monitoring in 5 easy stepsFebruary 7, 2022

    Hello Babin Lonston, Your tutorial is very helpful to me to Install the prometheus and nodeexporter on the server. Can…

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