Hard-won lessons from managing production Linux systems, zero-downtime mailbox migrations, high-availability clusters, and private cloud infrastructure in Calgary.
imapsync is faster at a fresh copy. IMAPLANE copied every message exactly and used far less memory. Here are the measured numbers, the trade-offs and the limits of the test.
Email migrations shouldn't mean corrupted mailboxes or lost subfolders. Here is how our purpose-built Rust engine delivers byte-verified, zero-downtime email transfers.
Some companies would rather own their cloud than rent one. Here is what a private cloud on OpenStack gives you, what it costs you in effort, and when it is the wrong call.
A small company usually pays for a VPN, a file service, chat, video, a calendar and a phone system separately. ITbox runs all of them on one server you control.
"Managed" and "self-managed" get compared on price, but the real difference is who's accountable when something breaks.
Turning off password auth is where most SSH hardening guides stop. Here's what actually closes the gap.
Docker doesn't remove operational work, it moves it. Here's where container setups tend to quietly fall apart, and how to keep that from happening.
24/7 coverage isn't free, and not every business needs it. Here's a straightforward way to decide.
Migrations go wrong when they're rushed or undocumented. Here's the staged approach that keeps a move from becoming an outage.
The metrics that predict an outage are usually already there. The problem is nobody's watching them, or the alerts are too noisy to trust.
3 copies, 2 media types, 1 off-site. Simple to say, and most backup setups still get at least one part of it wrong.
Most server compromises aren't sophisticated. They exploit the same handful of unhardened defaults. Here's the checklist that closes them.
Both databases are good enough for almost everything. Here's what should actually drive the decision instead of habit or hearsay.
Nobody notices their AWS bill go up 4% a month until it's doubled in a year. Here's where that growth usually hides.
The Nginx vs Apache debate is mostly settled by what you're running, not which one is 'better.' Here's the practical version of that decision.
Virtualization isn't free. Here's how to tell whether splitting a server into KVM virtual machines will actually solve a problem you have.
Patching gets skipped because it feels risky. Here is a cadence that keeps a server current without turning every update into a gamble.
Standardized verification procedures developed from managing live production servers across Calgary commercial networks:
Essential firewall rules, SSH keys, fail2ban setup, unneeded package purging, and automated CVE patching.
Ed25519 cryptography, MaxAuthTries limits, non-standard port strategies, and secure bastion host setups.
Three data copies across two media types with one immutable off-site repository and verified restore drills.
Describe your setup and what is bothering you. You get a straight answer on scope and cost, not a sales script.