On the menu bar, click File > New > SFTP (SSH2) Site.
Enter a name for the site in the Label field.
Enter the site address in the Host field. You do not need to enter "ftp://" or "sftp://" at the start of the address.
Enter your user name in the User Name field. The server administrator provides your username and password.
Enter your password in the Password field.
Click Connect.
On the menu bar, click Tools > Global Options.
Expand Security.
Click on SSH2 security and make any changes.
Click OK.