In general, the ssh port will be temporarily blocked by default during the setup process.

This was done for a few reasons:

1. Many new users don't understand how to configure a Linux firewall safely (the people that do, already know how to disable the firewall)
2. Some users don't care to setup unique passwords for known account logins
3. The default login user "pi" is on just about every Raspbian distro
4. Most importantly, there is documented cases of traffic probing systems for open ports with these accounts

How to check the UFW firewall status:

1. Press Ctrl+Alt+t to open an x-terminal
2. Type this command sudo ufw status and press enter key

How to allow ssh traffic though pi firewall (we do not recomend exposing this port uprotected to the internet):

1. Reboot OS into RW writable mode or setting will revert on reboot (Menu: System -> Administration -> Reboot into normal mode )
2. Press Ctrl+Alt+t to open an x-terminal
3. Type this command sudo ufw default deny incoming and press enter key
4. Type this command sudo ufw default allow outgoing and press enter key
5. Type this command sudo ufw allow ssh and press enter key
6. Reboot OS into RO read-only mode again

How to enable the UFW firewall:

1. Reboot OS into RW writable mode or setting will revert on reboot (Menu: System -> Administration -> Reboot into normal mode )
2. Press Ctrl+Alt+t to open an x-terminal
3. Type this command sudo ufw enable and press enter key
4. Type this command sudo ufw default deny incoming and press enter key
5. Type this command sudo ufw default allow outgoing and press enter key
6. Type this command sudo ufw delete allow ssh and press enter key
7. Reboot OS into RO read-only mode again

How to disable the UFW firewall (not recommended):

1. Reboot OS into RW writable mode or setting will revert on reboot (Menu: System -> Administration -> Reboot into normal mode )
2. Press Ctrl+Alt+t to open an x-terminal
3. Type this command sudo ufw disable and press enter key
4. Reboot OS into RO read-only mode again