A practical guide to diagnosing Docker DNS, network, and startup-order problems behind Nginx upstream resolution errors.
Tag Archives: DNS
How to Renew an Expired Hestia Control Panel Certificate
Learn why a Hestia panel hostname certificate is managed at server level and how to verify DNS, renew it safely, and troubleshoot validation errors.
Fix Safari for Slow and Loading by Disable DNS Prefetching
I’m wondering why Safari on my Mac always slower load on facebook.com, but fast in Google Chrome. I did set the DNS for my network to Google DNS 8.8.8.8 and 8.8.4.4 and it doesn’t help much. facebook.com reverse the IP differently from different location, if your browser prefetching it, maybe slow down from the previous Continue reading “Fix Safari for Slow and Loading by Disable DNS Prefetching”