// Knowledge base
System requirements
The server, the domain and the ports you need before install.
Install on Ubuntu 22.04 LTS or Ubuntu 24.04 LTS, 64-bit x86. You need root SSH, a public IPv4 address and a domain you control.
- Memory: 8 GB if you install mail. The installer warns below 4 GB.
- Disk: 100 GB is a practical start. The installer warns below 50 GB free.
- CPU: 2 vCPU or more.
- Port 53 must be free so the panel can answer DNS. On Ubuntu the installer releases that port if the local resolver is using it.
Extra public IP addresses are optional. Use them when an account needs a dedicated address.
The full command sequence, the DNS names and the port table are on Get started.