How do I set SSH idle timeout?

How do I set SSH idle timeout?

On the server, head over to the /etc/ssh/sshd_config configuration file. The ClientAliveInterval parameter specifies the time in seconds that the server will wait before sending a null packet to the client system to keep the connection alive.

Does SSH session timeout?

SSH allows administrators to set an idle timeout interval. After this interval has passed, the idle user will be automatically logged out. The timeout [interval] is given in seconds. To have a timeout of 15 minutes, set [interval] to 900.

How does SSH timeout work?

Sets a timeout interval in seconds after which if no data has been received from the server, ssh(1) will send a message through the encrypted channel to request a response from the server. The default is 0, indicating that these messages will not be sent to the server, or 300 if the BatchMode option is set.

Why is SSH timing out?

Usually, the SSH connection timeout occurs due to bad server settings, wrong IP hosts, firewall restrictions, etc.

How do I keep my SSH session alive for a long time?

To set the SSH keep alive option on the server:

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 idle timeout in Linux?

Configure the timeout value in the /etc/ssh/sshd_config file with below parameter values. 2. Restart the ssh service after setting the values. This would make the session timeout in 10 minutes as the ClientAliveCountMax value is multiplied by the ClientAliveInterval value.

What does ClientAliveCountMax mean?

ClientAliveCountMax – This indicates the total number of checkalive message sent by the ssh server without getting any response from the ssh client. After x number of seconds, ssh server will send a message to the client asking for response.

How do I keep my SSH session active?

Keeping SSH connections alive

1. Start PuTTY.
2. Load your connection session.
3. In the Category pane, click Connection.
4. Under Sending of null packets to keep session active, in the Seconds between keepalives, type 240.
5. In the Category pane, click Session.
6. Click Save.
7. Connect to your account and monitor the connection.

How do I stop server timeout?

A server request may time out because it was blocked from ever leaving the computer or network and never got to the server. Firewall and router port blocking settings can prevent outgoing requests to servers. Reconfiguring the Firewall or router to allow the request to pass will fix the problem.