Author: Rumi

Hasan T. Emdad is an ICT Solution Architect, Project Manager with 12+ year expertise in HW selection, OS expertise on Linux and MS, Supervising Application SW on Pearl, Java, dot Net and PHP with DB experience of MySQL, Postgre, MS and Oracle. He was involved in setting up several Turn Key ICT including Telecom based projects on various government and autonomous bodies in the country. Developed more than 50 applications running with different operators and users. Managing a team of more than 10 in-house engineers and developers and manages an outsourcing team experts and contributors. Very recently engineered Public Key Infrastructure (PKI) on Enterperise and Root Certifying Authority and deployed scalable Cloud Computing and Managed Services. He has post graduated (MBA) from University of Dhaka, Bangladesh.

Proxmox 1:1 NAT routing

Rumi,

Background: The objective was to serve VM’s default route via private network Public IP with no default route More control over firewalling policy over the VM (which is not covered in this post) Automation via DHCP on VM provisioning (This too no covered in this post) D-NAT to the VM…

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Administrations

Installation steps of WSL – Windows Subsystem for Linux

Rumi,

Step 1 – Enable the Windows Subsystem for Linux You must first enable the “Windows Subsystem for Linux” optional feature before installing any Linux distributions on Windows. Open PowerShell as Administrator (Start menu > PowerShell > right-click > Run as Administrator) and enter this command: dism.exe /online /enable-feature /featurename:Microsoft-Windows-Subsystem-Linux /all /norestart We…

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Install Proxmox Backup Server on Debian 12

Rumi,

Set Hostname. Edit /etc/hostname. # nano /etc/hostname Overwrite the file with following content and save using Ctrl + X then Enter. pbs.example.com Edit /etc/hosts. # nano /etc/hosts Add the following line and save the file using Ctrl + X then Enter. 127.0.0.1 pbs.example.com Reboot the server. # reboot Check if the system hostname matches your subdomain.

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Install Uptime Kuma on Debian 12

Rumi,

Log into the Linux device. Run the following commands in a terminal window# update software repositories sudo apt update # install available software updates sudo apt upgrade -y # install prerequisites sudo apt install git curl -y # add nodejs software repository curl -sL https://deb.nodesource.com/setup_current.x | sudo bash – #…

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Fixing Proxmox “WARN: missing ‘source /etc/network/interfaces.d/sdn’ directive for SDN support!”

Rumi,

When trying to use SDN feature in Proxmox VE (PVE), we get this error SRV networking – Reload WARN: missing ‘source /etc/network/interfaces.d/sdn’ directive for SDN support! Created symlink /etc/systemd/system/multi-user.target.wants/dnsmasq@testzone.service -> /lib/systemd/system/dnsmasq@.service. TASK WARNINGS: 1 Edit /etc/network/interfaces file to add source /etc/network/interfaces.d/* at the bottom of the file 1 Login to…

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Install HAProxy on Ubuntu 20.04

Rumi,

Prerequisites To follow along with this HAProxy tutorial, you require the following: A set of 3 Ubuntu 20.04 servers configured with private networking. Please refer to the guide on How to Create a Private Network to set up private networking for your Vultr servers. Your servers should be in the…

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