Hi @andrezasv,
Currently we don’t have a setting for this.
If you use the Rename Login Page feature they will see a message telling them to log in if they want to access wp-admin pages.
We will consider adding a setting in a future release to allow administrators to redirect people to 404 page when trying to access hidden wp-admin.
I am having a problem with repeated attempts to login. Even though the Rename Login Page feature has been installed and implemented, the bot is still trying /blog/wp-login.php several times a second. As my standard 404 code is almost 20k I was running out of bandwidth.
I have blocked the IP via the 404 firewall feature which is fine till they try a different IP address.
While the setting you are thinking about will be quite useful for humans who make a mistake, for repeat offenders, i.e. bots, then a redirect to 127.0.0.0 would be much more useful as it will eat up much less bandwidth.
Make that a redirect to 127.0.0.1