Yes the Juggernaut installer will remove the Plesk Firewall extension and fail2ban packages. Juggernaut Firewall provides a much better functionality:
SPI Firewall Features
- Easy configuration directly through Plesk Panel.
- Allow or deny IP addresses permanently or temporarily (Supports adding subnets in CIDR notation).
- Ipset 6+ support for high performance firewall blocking.
- Supports advanced iptables rules for allowing or denying specific IPs or ports.
- Full command line interface for performing blocks, allows, or viewing current iptables rules.
- Supports viewing ports listening for external connections and the executables running behind them.
- Enable or disable iptables for specific network cards.
- Define permanent and temporary deny IP limits (IP addresses will get rotated automatically).
- Enable strict rules to DNS traffic.
- Filter packets for unwanted or illegal packets.
- SYN and UDP flood protection.
- Connection limit protection for protection from DOS attacks against specific ports.
- Flood protection for protection from DOS attacks against specific ports.
- Block traffic on unused IP addresses.
- Whitelist dynamic DNS IP addresses.
- Redirect connections to other ports and IP addresses.
- Block and white list specific countries on the firewall.
- Search though iptables rules to see if an IP address is blocked.
- IPv6 supported.
To remove the Plesk Firewall Extension
plesk bin extension --uninstall firewallTo remove Fail2ban
Centos/AlmaLinux/RHEL/RockyLinux
yum remove fail2banDebian/Ubuntu
apt-get remove fail2ban