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Firewall configuration

Each VPS is deployed with its firewall OFF and, by default, all connection ports are opened (22...
Fix PuTTY “Network error: Connection timed out” (while noVNC works)

Applies to: LumaDock VPS • Windows PuTTY • Linux/macOS OpenSSH • Any Linux OS If you can...
How to check which ports are open in the firewall?

Applies to: LumaDock VPS (Ubuntu/Debian with UFW or nftables, CentOS/AlmaLinux/RHEL with...
Port 25 on multiple IPs - how to enable and troubleshoot on your Linux VPS

Port 25 works only on some IPs? Configure your VPS to send SMTP from all addresses Applies...
Set RDP Source IP

This guide explains how to add a specific ip via firewall rule to access your vps only from that...