Dinsara Systems & Accounting Solutions

Dinsara Systems & Accounting Solutions We are a company specialized in providing IT, & Accounting related services

Are you still managing your network inventory, IP addresses, and VLANs in massive, fragile Excel spreadsheets?If you are...
07/05/2026

Are you still managing your network inventory, IP addresses, and VLANs in massive, fragile Excel spreadsheets?

If you are diving into network automation (or just want to preserve your sanity), you need a dynamic, centralized "Source of Truth." That is exactly what NetBox does.

What is NetBox?
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It is the industry-standard open-source tool for IP Address Management (IPAM) and Data Center Infrastructure Management (DCIM).

Why use it?
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* Single Source of Truth: It allows you to document and model your infrastructure exactly as it exists in the real world—from sites and racks to specific device platforms.

* Automation Ready: Tools like Ansible and Python can dynamically poll NetBox to generate inventories or push configurations directly to your devices.

* No Spreadsheets: It keeps your data clean, structured, and easily searchable through a great Web GUI and powerful REST API.

If you want to start experimenting with it, here is a comprehensive, step-by-step guide showing you exactly how to build an isolated NetBox lab on Ubuntu 24.04 using Docker.

Check out the full guide here and let me know what you think: https://mrtechsparrow.blogspot.com/2026/05/how-to-build-netbox-lab-on-ubuntu-2404.html

Are you already using NetBox, or prefer something else to document your infrastructure? Let me know in the comments!

21/04/2026

A Golden Image is a master template of a configured operating system environment—including all necessary software, security patches, and system settings—that is used to deploy identical copies to multiple machines. Instead of setting up every new laptop from scratch, IT teams use a Golden Image to ensure consistency, reduce errors, and save hours of manual labor.

If your team needs to standardize deployments using Sysprep, AnyBurn, and Audit Mode, this comprehensive runbook covers exactly how to do it from start to finish.

Read the full tutorial here:

Unable to SSH into legacy GNS3 appliances from Ubuntu 24.04? Get the runbook to fix OpenSSH cryptography mismatches and ...
12/04/2026

Unable to SSH into legacy GNS3 appliances from Ubuntu 24.04? Get the runbook to fix OpenSSH cryptography mismatches and connection refused errors.

Unable to SSH into legacy GNS3 appliances from Ubuntu 24.04? Get the runbook to fix OpenSSH cryptography mismatches and connection refused errors.

Learn how to prevent email sender spoofing in Postfix using smtpd_sender_login_maps and PostfixAdmin to secure your serv...
27/03/2026

Learn how to prevent email sender spoofing in Postfix using smtpd_sender_login_maps and PostfixAdmin to secure your server from compromised accounts.

Learn how to prevent email sender spoofing in Postfix using smtpd_sender_login_maps and PostfixAdmin to secure your server from compromised accounts.

Learn how to install and configure Active Directory Domain Services in Windows Server 2025 and promote a server to a dom...
06/03/2026

Learn how to install and configure Active Directory Domain Services in Windows Server 2025 and promote a server to a domain controller step-by-step.

Learn how to install and configure Active Directory Domain Services in Windows Server 2025 and promote a server to a domain controller step-by-step.

Create a multi-ISO bootable USB with Ventoy on Windows. No reflashing needed—boot Linux, Windows, and recovery tools fro...
25/02/2026

Create a multi-ISO bootable USB with Ventoy on Windows. No reflashing needed—boot Linux, Windows, and recovery tools from one USB.

Create a multi-ISO bootable USB with Ventoy on Windows. No reflashing needed—boot Linux, Windows, and recovery tools from one USB.

Learn how to configure and harden MikroTik CHR using CLI: user setup, interfaces, DHCP, NAT, and firewall rules for opti...
17/02/2026

Learn how to configure and harden MikroTik CHR using CLI: user setup, interfaces, DHCP, NAT, and firewall rules for optimal security.

Learn how to configure and harden MikroTik CHR using CLI: user setup, interfaces, DHCP, NAT, and firewall rules for optimal security.

Learn how to host and configure MikroTik CHR on Windows step by step.
07/02/2026

Learn how to host and configure MikroTik CHR on Windows step by step.

Learn how to run MikroTik CHR on Windows using VirtualBox, with easy steps for setup, networking, and basic configuration.

Learn why Windows shows “file name too long” errors and how to fix them by shortening file paths or enabling long path s...
26/01/2026

Learn why Windows shows “file name too long” errors and how to fix them by shortening file paths or enabling long path support.

Fix “file name too long” and path length errors in Windows by shortening folders or enabling long path support. Learn why it happens.

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7/B/5, Donald Disanayaka Road
Mudungoda
11056

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