Please add backup for csf.deny file

[btekcan]

Hello,

Please add csf.deny.bak function when we press `Flush All Block` button. Because no any warning for faulty pressing. Today I lost more than 4000 bad IP address.

Regards

[cautery]

YES please! Seems like a relatively useful feature that could be implemented without too much effort.

And I only have about 1200 Permanent bans, but over HALF of them are IP ranges that I spent MANY hours researching to compose properly.

[marcele]

There is no need for this. Remember that the csf .deny file supports include statements like Include /etc/csf/csf.custom.deny where you can store all your own custom entries.