We migrated and rebuilt an ISPConfig-based hosting infrastructure into a 24-node multi-region cluster.
- 10 web servers (Apache + PHP + Docker)
- 6 db servers (MariaDB in Galera mode for HA)
- 4 mail servers (Postfix + Dovecot + Rspamd + SOGo)
- 2 authoritative DNS servers (PowerDNS)
- 2 FTP gateways with passive port ranges and UFW
- Redis and MySQL backends per group
- Internal backup rotation and rsnapshot between datacenters
- SSL (Let’s Encrypt) managed entirely through ISPConfig
- Real-time monitoring via Netdata and status webhooks
This setup supports thousands of domains and mailboxes with seamless scaling and secure multi-user access.