How to Play on macOS | Firefly Private Server

Hosts lines

Paste both lines at the end of /etc/hosts in nano.

202.10.44.189 www.growtopia1.com
202.10.44.189 www.growtopia2.com

Setup

Add Firefly with nano.

Commands are shown before their Copy buttons so you can inspect exactly what Terminal will run.

Open Terminal
Open Finder → Applications → Utilities → Terminal, or search for Terminal with Spotlight.
Back up the current hosts file
Run this first so you can restore the original file if needed.
```
sudo cp /etc/hosts /etc/hosts.firefly-backup
```
When sudo asks for your password, type your Mac login password and press Return. Terminal does not show password characters while you type.
Open the hosts file in nano
```
sudo nano /etc/hosts
```
Paste the two Firefly lines
Move to the bottom of the file and paste both lines from the box above. Do not delete existing lines.
Save and exit nano
Press Control+O, then Return to save. Press Control+X to exit. Use the Control key, not Command.

Flush the macOS DNS cache

sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder

Open Growtopia
Fully close any running Growtopia window, launch it again, and sign in.

Finish and undo

Growtopia opens the Firefly server after nano saves successfully and the DNS cache is flushed.

Run the restore command below, flush DNS again, and reopen Growtopia.

sudo cp /etc/hosts.firefly-backup /etc/hosts

Troubleshooting

Password looks blank: this is normal in Terminal. Type it and press Return.
Permission denied: confirm the command starts with sudo and the account can administer the Mac.
Still official server: reopen /etc/hosts, verify both lines, save, flush DNS again, and restart Growtopia.

After setup

This is a Firefly gameplay preview, not a Terminal screenshot. Reaching a Firefly world after the DNS flush confirms the hosts change is active.

Send the command that failed and its error text. Do not send your Mac password.