NGINX 502 After an Update? Trace the Connection to PHP
A 502 after maintenance can interrupt enquiries or checkout. Trace the NGINX-to-PHP connection, diagnose the failure, and check the fix survives a restart.
Linux
When Your Online Store Fails: Use AI to Gather Evidence from Server Logs
When checkout fails, your operations provider needs concrete evidence to work with. See how AI, dmesg and journalctl can gather the evidence into a useful incident ticket.
Apache 2.4.68: Why the Version Number Isn’t Enough
An older Apache version may contain security fixes, while 2.4.68 now needs further review. Learn how to check packages, running services and scanner findings.
Before You Buy a GPU: Test Your Team’s Local AI Workload
Test your team’s local AI workload before buying a GPU. Measure output quality, memory, busy-period response times, and cost to make a confident hardware decision.
Shorter TLS Certificates: Will Your Renewal Setup Keep Up?
Prepare for shorter TLS certificate lifetimes with practical checks for domain validation, renewal scheduling, deployment, external monitoring and clear ownership.
Shorter TLS Certificates Expose the Renewals You Haven’t Automated
Shorter TLS lifetimes make certificate renewal a frequent production workflow. Learn how to automate validation, deployment, verification, and alerts.
OpenSSH 10 Crypto Changes: A Cleanup Plan for Old SFTP Integrations
OpenSSH 10 retired DSA and exposed ageing SFTP paths. Use this practical audit and migration plan to modernise keys without weakening SSH globally.
How to Delete Files and Folders Older Than X Days in Linux
Use Linux find to preview and delete old files, handle empty folders safely, and build a retention routine your developers and operations team can maintain.
Ubuntu Logs: Troubleshooting with journalctl and dmesg
Use journalctl and dmesg to investigate Ubuntu server problems, filter logs by time and service, check previous boots, and give your team a clearer handover.
Bash Find and Delete Files Older Than X Days
find [FOLDER_NAME]/* -prune -mtime +14 -exec rm {} \;
Written recommendations from Trafik og Veje, Aarhus Municipality (2011) and AgroTech (2010).
