4posts
Kubernetes, OpenShift, and Rancher get compared like three flavors of the same container platform, and the comparison starts wrong: vanilla Kubernetes is the upstream platform, OpenShift is Red Hat's distribution built on it, and Rancher is SUSE's multi-cluster management layer sitting on top. A sysadmin comparison of the three layers, what each one actually gives you, where the gotchas live, and how to pick for a small fleet.
The best accounting software for a freelancer is decided by the record, not the receipt: who can read your books, what the entry tier actually unlocks, how cleanly you can export, and what survives a migration. A sysadmin review of QuickBooks Online, Xero, FreshBooks, Wave, Zoho Books, and the self-hosted family (Invoice Ninja, Akaunting, Frappe Books, GnuCash), including what to check before you sign and the one case where self-hosting your books is the right call.
A sysadmin's field guide to VPNs: what a VPN actually does to your traffic, the threat models it does and does not answer, how no-logs claims and audits really work, which providers pass the test, and a deep technical comparison of OpenVPN, WireGuard, and the proprietary protocols (NordLynx, Lightway, Catapult Hydra, Chameleon), plus a hands-on self-hosted WireGuard setup.
A clear breakdown of Google Drive for Business pricing in 2025, including real-world costs, hidden fees, and when it makes sense to choose cheaper alternatives