coldroute.net — infrastructure, networks, systems
$ traceroute coldroute.net
1you0.001 ms
2mikrotik-mtcna.localready
3cisco-asa-firepower.coreready
4hyperv-proxmox.clusterready
5m365-global-admin.tenantready
6azure-lab.eastasiain progress
7coldroute.netreached
Practical networking and infrastructure notes, written from the field.
ColdRoute documents real configurations, real errors, and real fixes across MikroTik, Cisco, Hyper-V, and Microsoft 365 — the kind of problems that show up in actual production networks, not tutorials.
Routing table
Where this content actually comes from
Not a topic list — a record of what's been deployed, tested, and hit in the field.
Destination
Via
Metric
Infrastructure
Hyper-VProxmoxDockerproduction
Networks
MikroTikCisco ASARADIUSMTCNA · MTCRE
Systems
Microsoft 365PowerShellproduction
Cloud & Security
AzurePGD Cybersecurityin progress
From the field
Latest posts
Configurations and fixes, published as they're written up.
MikroTik
Automatically adding a simple queue with a DHCP lease script
RouterOS scripting for per-client bandwidth limits.
Windows
Fixing the Office 365 sign-in loop with an AAD identity cache reset
A recurring auth loop, and the cache-level fix that actually holds.
More posts publishing soon on /blog →
Ahmed Redwan
IT Manager, Dhaka, Bangladesh
MikroTik MTCRE 2023
MikroTik MTCNA 2022
Cisco Network Security 2025
PGD Cybersecurity in progress
ColdRoute is written and maintained by Ahmed Redwan, an IT Manager with close to a decade of hands-on infrastructure experience across Cisco, Hyper-V, Proxmox, Docker, and Microsoft 365.
Content here comes from configurations that were actually deployed and errors that were actually hit — not written for search traffic.