Proof of Work (PoW)¶

Proof of Work (PoW) - enables automatic user verification during first website visit.

PoW options¶

PoW can be configured on serv00.com with following values:

off - disabled (the protection will not be active for the domain)
on - enabled only during an attack (PoW will be automatically activated when an attack is detected)
always - always enabled (verification occurs on the first visit to the website)

The default PoW setting is on (enabled only during an attack).

Warning

When enabled - verification is performed once per day and requires cookies to be enabled in the client’s browser.

Configuration¶

DevilWEB¶

The PoW option can be changed by going to: WWW websites ➡ Manage ➡ Details ➡ Proof of Work.

Devil¶

After logging in to SSH you can change the PoW option using the command: devil www options DOMAIN pow on|always|off
Example: always enabling for the example.com webpage: devil www options example.com pow always

Customize the verification page¶

The appearance of the security page can be customized by creating the appropriate files in the errors directory.

File meanings:

pow-pensive.webp – image displayed during user verification.
pow-happy.webp – image displayed after successful verification.
pow-reject.webp – image displayed after access has been blocked.
pow.css – CSS stylesheet allowing you to change the page's appearance.

The files should be placed in one of the directories below, depending on the application type:

PHP: ~/domains/<DOMAIN>/public_html/errors/
Python: ~/domains/<DOMAIN>/public_python/errors/
Ruby: ~/domains/<DOMAIN>/public_ruby/errors/
Node: ~/domains/<DOMAIN>/public_node/errors/

Example of the CSS file can be found here.