How do I set SSH idle timeout?

How do I set SSH idle timeout?

User can login to a server via SSH and we can set an idle timeout interval to avoid unattended SSH session. Open /etc/ssh/sshd_config and make sure following values are configured: ClientAliveInterval 300. ClientAliveCountMax 0.

What is SSH idle timeout?

SSH allows administrators to set an idle timeout interval. After this interval has passed, the idle user will be automatically logged out. If a shorter timeout has already been set for the login shell, that value will preempt any SSH setting made here.

What is the default ssh timeout?

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. The maximum interval is 9999 minutes.

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 limit ssh in Linux?

Limit SSH User Logins Open the /etc/ssh/sshd_config file. Add an AllowUsers line at the bottom of the file with a space separated by list of usernames. For example, user tecmint and sheena both have access to remote ssh. Now restart ssh service.

How do I set idle timeout in Linux?

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.

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.

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 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 keep my ssh session alive PuTTY?