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--- ubuntu:ssh:install_ssh [2019/12/04 21:25] – created peter
+++ ubuntu:ssh:install_ssh [2025/05/21 09:26] (current) – peter
@@ Line 2: / Line 2: @@
 <code bash>
-sudo apt install openssh-server
+sudo apt install ssh
 </code>
+----
+===== Verify that SSH is running =====
+<code bash>
+sudo systemctl status ssh
+</code>
+returns:
+<code bash>
+● ssh.service - OpenBSD Secure Shell server
+     Loaded: loaded (/lib/systemd/system/ssh.service; enabled; vendor preset: enabled)
+     Active: active (running) since Fri 2021-11-19 09:47:32 GMT; 2 days ago
+       Docs: man:sshd(8)
+             man:sshd_config(5)
+   Main PID: 885 (sshd)
+      Tasks: 1 (limit: 9403)
+     Memory: 7.5M
+     CGroup: /system.slice/ssh.service
+             └─885 sshd: /usr/sbin/sshd -D [listener] 0 of 10-100 startups
+Nov 19 09:47:32 plex systemd[1]: Starting OpenBSD Secure Shell server...
+Nov 19 09:47:32 plex sshd[885]: Server listening on 0.0.0.0 port 22.
+Nov 19 09:47:32 plex sshd[885]: Server listening on :: port 22.
+Nov 19 09:47:32 plex systemd[1]: Started OpenBSD Secure Shell server.
+Nov 19 09:48:15 plex sshd[1358]: Accepted password for peter from 192.168.1.69 port 49974 ssh2
+Nov 19 09:48:15 plex sshd[1358]: pam_unix(sshd:session): session opened for user peter by (uid=0)
+Nov 21 21:24:44 plex sshd[83478]: Accepted password for peter from 192.168.1.69 port 35628 ssh2
+Nov 21 21:24:44 plex sshd[83478]: pam_unix(sshd:session): session opened for user peter by (uid=0)
+</code>
+----
+===== Start the SSH Service =====
+If the service is not running, start it:
+<code bash>
+sudo systemctl start ssh
+</code>
+----
+===== Enable SSH Service to Start on Boot =====
+To ensure that the SSH service automatically starts after a reboot, you need to enable it using systemctl.
+<code bash>
+sudo systemctl enable ssh
+</code>
+----
+===== Firewall - Open the SSH port =====
+<code bash>
+sudo ufw allow ssh
+sudo ufw enable
+</code>
+<WRAP info>
+**NOTE:**  This configures UFW to allow inbound SSH connections, ensuring that remote attempts to connect to the server via SSH are not blocked by the firewall.
+</WRAP>
+----
+===== Test =====
+From a remote system, try to connect to this system using SSH:
+<code bash>
+ssh username@server_ip_OR_hostname
+</code>
+<WRAP info>
+**NOTE:**  Replace **username** with the actual username on the system, and **server_ip** with the IP address of the machine being connected to.
+</WRAP>
+----
+===== TAGS =====
+  * TAG:  Networking
+  * TAG:  Security
+  * TAG:  Server
+  * TAG:  SSH