@IniBudi said in Ask About Cloudron Firewall:
What is the function of the Firewall in Cloudron?
It's main function is to set up rate limits - https://docs.cloudron.io/security/#rate-limits . This prevents basic DoS and DDoS .
It also has basic blocklists and whitelisting certain ports (for custom software) - https://docs.cloudron.io/networking/#firewall
For example, if an IP is blocked in the firewall, does it automatically prevent access to all applications installed on Cloudron?
assuming you mean the blocklist feature, yes, it prevents access to all apps on Cloudron .
Additionally, if someone attempts to access the SSH server and gets blocked by Fail2Ban, can we automatically add that IP address to Cloudron’s firewall?
Cloudron doesn't use Fail2Ban but you can install it on your own if you like - https://docs.cloudron.io/security/#fail2ban . In general, Fail2Ban is not useful for SSH . Just configure your SSH to a) block root login b) block password login and c) use eddsa strong keys . See https://docs.cloudron.io/security/#securing-ssh-access . People can waste all their resources trying to access your server, you can just ignore them. Reality of internet is anyone can access your server.
