Public a 7 Days to Die servers are frequent targets for script-kiddies and griefers. Hardening your network and server configuration is vital for community longevity.
Only open the ports you strictly need. For 7DTD, this is typically 26900 (TCP/UDP) and 26901-26903 (UDP). Never expose your Web Panel port (8080) to the public web without a strong password or VPN.
LandClaimDeadZone and LandClaimOnlineHealthModifier to 40x on PVP servers.