networking
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Solved: How to deal with a local LAN system where every node has a unique vlan id, but they are all on the same subnet
Unlock network sanity when one subnet spans multiple VLANs. Learn why this causes chaos and discover key strategies to fix node communication failures Continue reading
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Solved: Hacking a cheap Wi-Fi toy drone
Your cheap Wi-Fi drone is stuck on its own network. Learn 3 ways to hack it, from simple workarounds to hardware mods, and control it from your PC. Continue reading
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Solved: Was asked in interview: How do you implement intranet and extranet?
Asked how to implement an intranet or extranet in an interview? A DevOps expert explains real-world cloud architectures, from VPNs to Zero Trust. Continue reading
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Solved: How often do you all make changes on L3 routing protocols?
Anxious about touching BGP? Learn why ‘set it and forget it’ L3 routing is risky and get strategies to make your network changes safe, repeatable, and Continue reading
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Solved: Soo… Am I the only one to find find expired domains that way? Or is it a common practice?
Server down due to an expired domain in your DNS? Find out why this rogue resolv.conf issue happens and get three fixes, from quick hacks to permanent Continue reading
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Solved: Anyone running Canonical MicroCloud at scale?
A senior engineer’s take on the challenges of running Canonical MicroCloud at scale, with practical solutions for networking, storage & production use Continue reading
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Solved: State of systemd-resolved and DNSSEC? Is it still experimental?
Fix mysterious DNS failures from systemd-resolved. A DevOps pro explains the DNSSEC confusion on Linux and provides three practical fixes to get back Continue reading
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Solved: Suggestion for Front End
Can’t connect your front-end to a back-end API? Learn to fix common CORS and Docker networking errors that cause connection issues. A DevOps guide. Continue reading
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Solved: This Is Why Britain Is Broken: We Print QR Codes to Stop Hackers
Printing QR codes to stop hackers? It’s a symptom of broken DNS. Learn what causes DNS resolution failures and how you can fix them in your environmen Continue reading
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Solved: Cloud Engineer roadmap check: Networking + Linux completed, next steps?
Stuck after learning Linux & Networking? Get a DevOps lead’s project-based roadmap to escape the tutorial trap and build real-world skills that get yo Continue reading