Preface Cloudlfare is a blessing to many people in China, mainly for individual webmasters (such as me): for new webmasters with a certain technical foundation, if they don’t have a record, but want to publish their own sites on the public Internet, using Cloudflare is just a matter of minutes (…

Preface I have previously written an article about using home broadband to build a mailbox, but this kind of self-built mailbox can only receive messages. Whether the messages can be sent to the other party's mailbox depends purely on the email security policy of the email provider used by the other party (for the construction and subsequent test results, see the article: Docker series builds a mailbox based on p...

Introduction What does "building a website with a public IP but no legal ports 80 and 443" mean? This mainly refers to two scenarios: home broadband with a public IP and unregistered cloud hosts. 1. Home broadband with a public IP Now home broadband with a public IP (mainly IP…

Preface The free CDN solution provided by Cloudflare for individuals works well in places other than China. However, Cloudflare normally only accepts secondary domain names to be accessed in the form of NS, and the public IP address needs to be specified when setting up through DNS...

Preface Actually, from the title of the demand, it seems that it is not very meaningful now, because if you only use cloudflare, there are too many ways to quickly access domestic sites from abroad (tunnel, custom host). I considered this issue at the time because I wanted to solve the backup problem.