As far as I know, this is the most complete spanish-language walkthrough currently available. I documented every step from a licensed cPanel instance to HestiaCP on a fresh Debian 12 box at InterServer.
- Phase 1: backup generation via /scripts/pkgacct, verified checksums
- Phase 2: Hestia installation with custom port, fail2ban enabled, no softaculous
- Phase 3: manual restoration of databases, mailboxes, and DNS zones