“I was working on a technical post about DNS resolution when I encountered something unexpected. Every time I typed the path to the hosts file (/etc/h*sts - intentionally obfuscated to avoid triggering the very issue I'm discussing), my Substack editor would display a ‘Network Error’ and fail to autosave my draft.”
https://scalewithlee.substack.com/p/when-etchsts-breaks-your-substack