To start a session, the user needs to setup a host, this is done in the Hosts screen. In our example we'll be connecting to a Raspberry pi in our local network.
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The Hosts screen is the first screen that will appear when you'll open the app for the first time. It shows a big blue + on the bottom right corner and sais Hosts on the top left.
Termius is a cross-platform SSH Client. It helps you to connect to- and manage a system or service. If a system or service is prepared to accept SSH connections it is called a host. A host can be found through hostname e.g. ssh.Termius.com or IP address e.g. 192.168.0.21.
To get started with Termius we should add a 'host'. This is done in the Hosts screen.
- Tap the blue
+ - Them tap
New Host
A new screen will appear titled New Host
- Enter an alias; 'Raspberry Pi', for example
- Enter an IP address or hostname under
hostname - Fill out the username and password
- And hit the tick
✓in the top right corner
! IP address, hostname, and credentials are unique to the host you connect with
By tapping the blue icon 
on the right to the Username field, you may add an identity to the host. An identity is a predefined username in combination with a password or key. One identity can be shared among multiple hosts and host groups and an identity may be updated at any time.
After tapping the tick, you'll be sent back to the Hosts screen. Here you should see the freshly entered host. To connect tap it once.
You may see a security warning. Don’t worry: everything is fine. Hit Connect. You’ll only see this warning the first time Termius connects to a host that it hasn’t seen before.
Now a terminal with a prompt should appear, you are connected. Type exit to close the terminal window.
If a dialogue saying
Connection failed Connecting to xxx.xxx.xxx.xxx port 22appears, it is likely you have entered an incorrect IP address. Otherwise, you device might not be hooked up to a network, the host might be turned off, or it may be in a different network than your device.
A connection might be unsuccessful due to various reasons. For instance, you might have made a typo or the IP address or credentials have changed. In such case, you need to update the host.
Make sure you are on the Hosts screen. Tap the menu button in the top left corner, then tap hosts.
Navigate to the host you want to modify, tap and hold, until a blue circle with a tick appears. Now in the top right corner, tap the dustbin 
to delete the host, or the pencil 
to alter the host details.
After editing the details hit the tick ✓ in the top right corner, to save the changes.