Mirror

Mirror is one of Reqable's core debugging features. It maps one host to another—for example, requests to host A (www.foo.com) are sent to host B (www.bar.com). This runs at the proxy layer rather than the application layer and redirects all traffic for the host. To redirect a specific path, use Rewrite — Redirect instead.

info

Mirror is similar to modifying the system's hosts.txt, like modifying DNS, so https requests cannot be mapped to http requests (such as Localhost service). To handle this problem, please use Rewrite Redirect.

You can enable the mirror via the menu path Traffic -> Mirror -> Enable (Shortcut key Shift + Control + M). Once the mirror is enabled, an activation icon will appear on the toolbar.

Click the icon above to disable the mirror, once disabled, the icon will disappear from the toolbar. If you wish to keep the mirror icon permanently visible on the toolbar, you can right-click the toolbar to edit and select to pin it.

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To prevent abuse, Reqable does not provide this feature on mobile app.

Create Mirror

You can create a mirror rule in several ways:

• Traffic menu -> Mirror -> Add Rule
• Mirror icon right-click menu -> Add Rule
• Tray -> Mirror -> Add Rule
• Mirror List -> New
• Mirror List -> Right-Click Menu -> New
• Traffic list -> Select an item -> Right-click menu -> Mirror
• Shortcut key Shift + Alt + M

The domain supports wildcard and ? matching. If `.reqable.comis configured, all subdomains can be matched, includingapi.reqable.com, www.reqable.com`, etc.

If the domain port number is not specified, HTTP requests default to 80 port, and HTTPS requests default to 443 port. Of course, the port number can also be specified explicitly, for example: *.reqable.com:8080.

If the mirror port number is not specified, the port number of the original domain will be used.

Host Header

Each HTTP request header basically contains Host, such as Host: reqable.com:80. The mirror function can specify the strategy of this value.

• Preserve, keep the Host unchanged.
• Use CONNECT address. The CONNECT address generally refers to the URL address, such as reqable.com:80. This value is generally the same as the Host header.
• Use mirror address. This changes the value of Host to the mirror value.

SNI

Server Name Indication, which is generally included in the handshake packet of SSL/TLS. This value will affect the verification of SSL certificate.

• Preserve, keep the SNI value unchanged.

• Use CONNECT address. The CONNECT address generally refers to the original domain, such as reqable.com. This value is generally the same as the SNI.

• Use mirror address. This changes the SNI to the mirror value.

Certificate CN

Common name of Certificate, this value will affect the verification of SSL certificate.

• Preserve, keep the CN value unchanged.

• Use CONNECT address. The CONNECT address generally refers to the original domain, such as reqable.com. This value is generally the same as the CN.

• Use mirror address. This changes the CN to the mirror value.

caution

Since the HTTP request of the browser or application may use KeepAlive, the mirror configuration cannot take effect immediately. Therefore, it is recommended to restart the browser or target application immediately after configuring the mirror.

Rules Management

Rules are matched from top to bottom. The same request can match multiple rules. The one at the front will be executed first. Rules support folder-level management. You can adjust the position by long pressing and dragging. Import and export are also supported for sharing rules with others.