Caido

Startup Issues ​

"Instance is unreachable" ​

This error may occur when a Caido subprocess has failed to spawn.

Instance is unreachable.

Resolution ​

If you encounter this error message after attempting to launch a Caido instance, enable safe mode to disable either the frontend or backend component of a plugin and recover the instance.

To disable the frontend component of a plugin, access Caido in your browser by navigating to http://127.0.0.1:8080/?safe. In the Plugins interface, open the Installed tab, and click on the button attached to a plugin row to expand the component settings. Then, click on the frontend component checkbox to remove its fill.

The plugin component checkboxes.

To disable the backend component of a plugin, launch Caido with the --safe argument.

bash
caido --safe

"Encountered an error when communicating with the destination server" ​

text
Encountered an error when communicating with the destination server

Failed to acquire connection

Caused by:
    0: Failed to perform TLS handshake
    1: error:1408F10B:SSL routines:ssl3_get_record:wrong version number:ssl/record/ssl3_record:c:332

This error may occur when your proxy settings are misconfigured.

Resolution ​

If you encounter this error message while proxying traffic through Caido, check your proxy settings and ensure the Type is set to HTTP.

Proxy settings type.

"Could not initialize configuration" ​

text
Error: Could not initialize configuration
Caused by:
    0: Authentication service error
    1: Cloud operation failed
    2: Cloud unavailable
    3: error sending request for url (https://api.caido.io/oauth2/register): error trying to connect: tcp connect error: Connection refused (os error 111)
    4: error trying to connect: tcp connect error: Connection refused (os error 111)
    5: tcp connect error: Connection refused (os error 111)
    6: Connection refused (os error 111)

This error may occur due to internet connection issues. Caido requires an internet connection on first launch, during login, and after 7 days offline (the time period after which your authentication token needs to be refreshed).

Resolution ​

If you encounter this error message, check your internet connection.