Knowledge base for software setup, errors, and daily tool work.

Fix Edge Sync Not Working After Update

After a browser update, you might find that bookmarks, passwords, or other settings no longer syn...

Setting Up Cloudflare Wildcard Subdomains for Multiple Sites

If you manage multiple sites or services on different subdomains (like app.example.com, blog.exam...

Fix Cloudflare Origin Certificate with Let's Encrypt

If your origin server is rejecting the Cloudflare origin certificate—perhaps because of a SAN mis...

Fix Nginx HTTP to HTTPS Redirect Loop Error

You set up an HTTP-to-HTTPS redirect in nginx, but now your browser shows a redirect loop error. ...

Fix Nginx Upstream Connection Refused Socket Error