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

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Create Linux Swap space using a file | 1 Easy guide
Linux Administration

Create Linux Swap space using a file | 1 Easy guide

Posted on: January 5, 2017March 6, 2022

A guide about How-to Creates a Linux Swap space in a few steps without Physical disks.

Security

How to Configure Sudo email alert

Posted on: December 31, 2016March 6, 2022

Introduction Sudo email alert, If we need to get an alert when some user executes some command which not suppose to run. Or if some user not at […]

Monitoring Tools

Installing Monit in Ubuntu Servers

Posted on: December 31, 2016March 6, 2022

Monit is a utility for managing and monitoring, processes, files, directories and devices on a UNIX system. Monit conducts automatic maintenance and repair and can execute meaningful causal […]

Install Proftpd with TLS/SSL
FTP Server

Install Proftpd with TLS/SSL

Posted on: December 31, 2016March 6, 2022

PROFTPD use plain transfer mode. By implementing with TLS/SSL which help to secure our Proftpd with TLS/SSL by eliminating plain text transfer.

Linux Administration

Install and configure Logwatch in Ubuntu-Server

Posted on: December 31, 2016March 6, 2022

To watch the logs and send alert periodically to admin by configuring logwatch. Install Logwatch using # sudo apt-get install logwatch Edit logwatch.conf file # /usr/share/logwatch/default.conf/logwatch.conf Change the […]

Setting up a Ruby gem server to use locally
Ubuntu Linux

Setting up a Ruby gem server to use locally

Posted on: December 30, 2016March 6, 2022

Introduction Installing gems for a Ruby deployment is a pain. It will take more than hours to download the required gems and docs. To save the time and […]

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 […]

Ubuntu Linux / Troubleshooting

Recovering from Ubuntu dual boot issue | Chroot Ubuntu

Posted on: December 30, 2016March 6, 2022

To recover from a windows installation first we need to boot from LiveCD of Ubuntu if you installed with system 32-bit use 32bit Live CD If 64bit use […]

Apache virtual host entry to forward non-SSL to SSL for Rails application
Web Server

Apache virtual host entry to forward non-SSL to SSL for Rails application

Posted on: December 28, 2016March 6, 2022

In the rails application, if we need to forward all non-SSL traffic to SSL traffic we can use below virtual host entry. By default, the rewrite module needs […]

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 […]

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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
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