使用 Cloudflare 的免费内网穿透

Mon, 20 Apr 2026 00:00:00 GMT

今晚折腾了一下 Cloudflare 的免费内网穿透，简单分享一下经验。😛

临时隧道（适合联机游戏、共享文件等场景）

临时隧道完全免费，甚至不需要创建账号。只需要在你的电脑上安装 cloudflared 并执行一个命令即可。

在这里下载 cloudflared，然后执行下面的命令：

cloudflared tunnel --url http://localhost:<port>

将 <port> 换成你的端口，执行完后会出现一个随机的地址，直接打开它就可以访问了。😁

持久隧道（适合自建服务器等）

你需要准备一张 Visa 的信用卡，当然这是因为 Cloudflare 仍然需要绑定一个付款方式，即使服务是免费的 😓

首先你需要一个域名，在这里可以申请到一个免费三级域名。

在这里注册域名：

所有的保持默认点注册即可：

点击 Add -> Connect a domain，把刚才的域名输入进去，保持默认 Import DNS records automatically 即可：

选择 Free 计划即可，到这里直接跳过即可：

来到这里：

回这里把那两个服务器添加上点击更新名称服务器：

再回到 Cloudflare 点 I updated my nameservers 到这里：

等几分钟后刷新一下应该可以看到这个界面，域名就添加好了：

回到 Dashboard 打开 Protect & Connect 下的 Zero Trust：

Networks -> Connectors -> Create a tunnel：

我选的是 Cloudflared，随后随便取个名字，然后到这里：

在服务器上运行相应命令后点 Next 到这里可以设置一个隧道服务，可以配置子域名、域名和端口：

回到 tunnels 列表，打开我们创建的 connector，在 Published application routes 可以添加和管理隧道：

随后就可以愉快地使用内网穿透啦！😄

第一篇文章

Thu, 02 Apr 2026 00:00:00 GMT

建站大吉！

An h1 header

Paragraphs are separated by a blank line.

2nd paragraph. Italic, bold, and monospace. Itemized lists look like:

this one
that one
the other one

Note that --- not considering the asterisk --- the actual text content starts at 4-columns in.

Block quotes are written like so.

They can span multiple paragraphs, if you like.

Use 3 dashes for an em-dash. Use 2 dashes for ranges (ex., "it's all in chapters 12--14"). Three dots ... will be converted to an ellipsis. Unicode is supported. ☺

An h2 header

Here's a numbered list:

first item
second item
third item

Note again how the actual text starts at 4 columns in (4 characters from the left side). Here's a code sample:

# Let me re-iterate ...
for i in 1 .. 10 { do-something(i) }

As you probably guessed, indented 4 spaces. By the way, instead of indenting the block, you can use delimited blocks, if you like:

define foobar() {
    print "Welcome to flavor country!";
}

(which makes copying & pasting easier). You can optionally mark the delimited block for Pandoc to syntax highlight it:

import time
# Quick, count to ten!
for i in range(10):
    # (but not *too* quick)
    time.sleep(0.5)
    print i

An h3 header

Now a nested list:

First, get these ingredients:
- carrots
- celery
- lentils
Boil some water.

Dump everything in the pot and follow this algorithm:

 find wooden spoon
 uncover pot
 stir
 cover pot
 balance wooden spoon precariously on pot handle
 wait 10 minutes
 goto first step (or shut off burner when done)

Do not bump wooden spoon or it will fall.

Notice again how text always lines up on 4-space indents (including that last line which continues item 3 above).

Here's a link to a website, to a local doc, and to a section heading in the current doc. Here's a footnote [^1].

[^1]: Footnote text goes here.

Tables can look like this:

size material color

9 leather brown 10 hemp canvas natural 11 glass transparent

Table: Shoes, their sizes, and what they're made of

(The above is the caption for the table.) Pandoc also supports multi-line tables:

keyword text

red Sunsets, apples, and other red or reddish things.

green Leaves, grass, frogs and other things it's not easy being.

A horizontal rule follows.

Here's a definition list:

apples : Good for making applesauce. oranges : Citrus! tomatoes : There's no "e" in tomatoe.

Again, text is indented 4 spaces. (Put a blank line between each term/definition pair to spread things out more.)

Here's a "line block":

| Line one | Line too | Line tree

and images can be specified like so:

Inline math equations go in like so: $\omega = d\phi / dt$. Display math should get its own line and be put in in double-dollarsigns:

$$I = \int \rho R^{2} dV$$

$$ \begin{equation*} \pi =3.1415926535 ;8979323846;2643383279;5028841971;6939937510;5820974944 ;5923078164;0628620899;8628034825;3421170679;\ldots \end{equation*} $$

And note that you can backslash-escape any punctuation characters which you wish to be displayed literally, ex.: `foo`, *bar*, etc.