It is possible to save configuration of ssh connection for later usage. For example, one had to type
ssh <username>@<ip address> -p <port> -i <path to key file>
every time one wants to connect to server.
Create ~/.ssh/config
with following content:
Host <name>
Hostname <ip address>
Port <port>
User <username>
IdentityFile <path to key file (if any)>
Now just type
ssh <name>
to get connected to the server.