Allow a remote computer to access your Mac
If you allow remote login, you can use Secure Shell (SSH) to log in to your Mac from another computer.
You can’t use Telnet to log in to your Mac.
Set up Remote Login on your Mac
On your Mac, choose Apple menu > System Preferences, click Sharing, then select Remote Login.
Select the Remote Login tickbox.
Selecting Remote Login also enables the secure FTP (sftp) service.
Specify which users can log in:
All users: Any of your computer’s users and anyone on your network can log in.
Only these users: Click the Add button , then choose who can log in remotely. Users & Groups includes all the users of your Mac. Network Users and Network Groups include people on your network.
Log in to your Mac from another computer
On the other computer, open the Terminal app (if it’s a Mac) or an SSH client.
Type the ssh command, then press Return.
The general format of the ssh command is:
For example, if your username is steve and your computer’s IP address is 10.1.2.3, enter the following:
$ ssh firstname.lastname@example.org
Enter your password, then press Return.
If you don’t know the username and IP address for your Mac, open the Remote Login pane of Sharing preferences. Your username and IP address are shown below the “Remote Login: On” indicator.
Allowing remote login to your Mac can make it less secure. See Set up your Mac to be secure.