Minecraft server operations
Networking
Check ports, domains, proxies, and connections.
7 guides in this topic
Open Minecraft port 25565 on Hetzner and Linux
Check Docker port publishing and firewalls when your server runs but players cannot connect.
Set up a Minecraft domain without a port using SRV
Connect a domain to your Java server and check its SRV and A/AAAA records.
Set up Geyser and Floodgate on Paper
Let Bedrock players join a Java server: install the plugins, configure RakNet or NetherNet, and test the connection.
Velocity cannot reach Paper: check the Docker connection
Check container state, the shared network, service name, and backend port.
Set up Geyser and Floodgate on Velocity with Docker
Install Geyser on the proxy, configure RakNet or NetherNet, and check Bedrock player authentication.
Fix NetherNet connections on your Bedrock server
Friends cannot join after an update? Check the new port rules and the address they can reach.
Set up NetherNet on your Geyser server
Set up the newer connection method for Bedrock players and find out why joins fail.