How to Kill An Unresponsive SSH Session [Quick Tips]

So how do we kill an unresponsive SSH session (other than closing the terminal window)? The trick is easy. You just have to press “Enter”, follow by “~.” (a tilda and a dot, without the quotes). The “~” shortcut is an escape character and the dot represents a disconnection.

1. How do I end a SSH session in Hung?
2. How kill all SSH sessions in Linux?
3. How do I kill a user session in Linux?
4. Why does my ssh session timeout?
5. How do I close all SSH sessions?
6. How do you kill a process in Linux?
7. How do I kill a PuTTY session?
8. How can I see what SSH connections are open?
9. How do you kill a user session in Unix?
10. How do you explicitly kill a user session?
11. How do I list users in Linux?
12. How do I stop SSH session timeout?
13. How do I set SSH timeout?
14. How long is SSH timeout?

How do I end a SSH session in Hung?

7 Answers

1. closing the shell session will usually exit, for example: with the shell builtin command, exit , followed by Enter , or. ...
2. in the case where you have a bad connection and the shell is unresponsive, hit the Enter key, then type ~. and ssh should immediately close and return you to your command prompt.

How kill all SSH sessions in Linux?

In order to kill the idle ssh session, you need the parent process ID (PPID) of the idle session. To find that, run the pstree command to see a tree map of all the processes. You should get an output like the one below. But the structure and PIDs of the tree can vary.

How do I kill a user session in Linux?

1) Kill user session using pkill command

TTY session can be used to kill a specific user ssh session & to identify tty session, please use 'w' command.

Why does my ssh session timeout?

SSH timeouts as a result of inactivity can be quite irritating. ... Thankfully, you can easily increase the SSH timeout limit and keep your SSH session alive even after some inactivity. This happens when either the server or the client sends null packets to the other system to keep the session alive.

How do I close all SSH sessions?

Yes. You'll use the "kill" or the "pkill" utility to terminate all the running sshd processes. If you also want to make connections impossible from now on, you'll want to disable the sshd service (or daemon).

How do you kill a process in Linux?

1. What Processes Can You Kill in Linux?
2. Step 1: View Running Linux Processes.
3. Step 2: Locate the Process to Kill. Locate a Process with ps Command. Finding the PID with pgrep or pidof.
4. Step 3: Use Kill Command Options to Terminate a Process. killall Command. pkill Command. ...
5. Key Takeaways on Terminating a Linux Process.

How do I kill a PuTTY session?

Just press Ctrl D and it will log you out there for hold ctrl and press "d" till the window disappears. Simply close PuTTY. ( Alt + F4 by default IIRC.) Unfortunately it also will always close the connection and logout from console after you'll finish work on the remote system.

How can I see what SSH connections are open?

Find Active SSH Connection with ss command

ss is very similar to netstat and used to display more information than other tools. You can use ssh command with grep to list the active SSH connection in your server. As you can see, there are two active connections from the client IP 45.58.

How do you kill a user session in Unix?

Kill a Unix login session remotely

1. Identify the shell you want to kill. ...
2. To show all of your running processes, enter: ps -fu username. ...
3. You should see something like this: PID TT STAT TIME COMMAND 13964 v5 I 0:00 elm 13126 ue S 0:00 -bash (bash) 13133 ue R 0:00 ps x 13335 v5 S 0:00 -bash (bash)

How do you explicitly kill a user session?

Answer: Session. Abandon() is used to kill user session explicitly.

How do I list users in Linux?

In order to list users on Linux, you have to execute the “cat” command on the “/etc/passwd” file. When executing this command, you will be presented with the list of users currently available on your system. Alternatively, you can use the “less” or the “more” command in order to navigate within the username list.

How do I stop SSH session timeout?

Option 1) Server Side Keep Alive

1. Log in as root.
2. Edit the file at /etc/ssh/sshd_config.
3. Add this line to the file: ClientAliveInterval 60.
4. Save the file.
5. Restart sshd on the server.

How do I set SSH timeout?

Use the ssh_timeout command to set the number of minutes that the SSH session can be idle before it is closed. The default timeout interval is 0 minutes. Use this value, if you do not want the SSH session to expire. The minimum timeout interval is 2 minutes.

How long is SSH timeout?

This default varies depending on your system. Some systems use a default as low as five seconds, and some go as high as two hours; the average is typically around three to five minutes. Your SSH connection, if it has not been modified to change the timeout on either the server or client end, will use this timeout.