By Greg Nowak , 12 August, 2026 Cloudflare Changed DoH JSON. What Else Is Parsing DNS as Text? Cloudflare’s DoH JSON change exposes brittle DNS parsing. Find affected scripts, test both formats, and choose a safer integration contract. Tags Cloudflare DNS API integration bash python
By Greg Nowak , 10 February, 2022 Delete Files and Folders Older Than X Days in Linux Clean up old files in Linux with practical find commands, preview checks, and safer folder handling—plus guidance for reliable, scheduled retention. Tags Linux bash server maintenance Automation File Retention
By Greg Nowak , 4 June, 2020 Converting PNG to SVG In a lot of cases it is useful to convert bitmaps like jpg, png to vector graphics like SVG or AI. Inkscape -> Path -> Trace Bitmap BASH convert file.png file.pnm potrace file.pnm -s -o file.svg Tags bash Script graphics
