This is my first time using a pi, and first time using ssh, so please be patient and clear. Thanks for the help!
I am trying to run my pi headless, using my laptop's monitor and keybaord. I already have Raspian installed on a mini sd card, which is in the pi. The pi is powered on and connected via ethernet cable to my wireless router. I logged into the router and discovered the pi (which is labeled "recovery" for some reason) and its IP address.
I installed openssh-server on the laptop with which I'd like to control the pi, which currently runs Ubuntu 15.04:
sudo apt-get install openssh-server
I ran a few other commands I'd found related to using ssh for the purpose of pi:
systemctl enable sshd.service
systemctl start sshd.service
matt:~$ systemctl status sshd.service
● ssh.service - OpenBSD Secure Shell server
Loaded: loaded (/lib/systemd/system/ssh.service; enabled; vendor preset: enabled)
Active: active (running) since Sun 2017-02-12 16:11:38 EST; 1min 27s ago
Main PID: 9424 (sshd)
CGroup: /system.slice/ssh.service
└─9424 /usr/sbin/sshd -D
Feb 12 16:11:38 <MY COMPUTER> systemd[1]: Started OpenBSD Secure Shell server.
Feb 12 16:11:38 <MY COMPUTER> systemd[1]: Starting OpenBSD Secure Shell server...
Feb 12 16:11:38 <MY COMPUTER> sshd[9424]: Server listening on 0.0.0.0 port 22.
Feb 12 16:11:38 <MY COMPUTER> sshd[9424]: Server listening on :: port 22.
However when I try to open the pi using ssh, I get this:
matt:~$ ssh pi@<PI IP from router>
ssh: connect to host 192.168.1.4 port 22: Connection refused