Systems
Administration, diagnostics and everyday operations.
Coming soonYour next technical go-to
Tools for IT professionals
A space for your systems, networking, cloud and security tasks. Focused tools, a clear interface, and the essentials within reach.
A space for every domain
The domains that will shape the catalogue. Tools will arrive progressively.
Networking
Addressing, connectivity and network analysis.
Cybersecurity
Checks, understanding and security best practices.
Coming soonCloud
Reference points for cloud infrastructure and services.
Coming soonDevOps
Automation, development and technical workflows.
Coming soonSystems
No tools are published in this category yet.
Networking
Cybersecurity
No tools are published in this category yet.
Cloud
No tools are published in this category yet.
DevOps
No tools are published in this category yet.
Tool catalogue
Browse published tools or narrow the list by name, task and domain.
5 tools found
Networking
IPv4 / CIDR calculator
Calculate IPv4 network, broadcast, subnet mask, wildcard and address ranges from a CIDR prefix or dotted-decimal subnet mask.
Networking
VLSM calculator
Divide an IPv4 network into subnets sized for your host requirements, with local VLSM allocation and Excel and CSV exports.
Networking
IPv6 / CIDR calculator
Calculate an IPv6 prefix, its boundaries and exact address count. Canonical compression, expanded notation and local calculations without a backend.
Networking
IPv4 Supernetting Calculator
Aggregate IPv4 CIDR networks without adding addresses. Compare the smallest covering prefix, its capacity and additional ranges with this local calculator.
Networking
IPv4 IP/Subnet Checker
Check whether an IPv4 address belongs to a CIDR subnet. View the subnet mask and complete address range without confusing membership with host availability.
The catalogue is taking shape.
No tools are published yet. Explore our technical guides on the blog in the meantime.
DIR-TECH BlogBuilt for the essentials
A simple, readable foundation for precise work.
A focused experience
An interface dedicated to technical tasks, with useful explanations.
A lightweight experience
Static pages and no account needed to browse the platform.
Your language, your bearings
French and English content with direct access to the equivalent version.