How do I set SSH 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.

What is client alive interval?

client-alive-interval – This allows us to configure the number of seconds the server will wait before sending a null packet to the client to keep the connection active. client-alive-count-max – This allows us to configure maximum number of times the alive message is sent to the client before the session is terminated.

How long is ssh timeout?

You will require to become inactive for long times on the client machine to check the SSH connection time is increased or not. The server will disconnect the connection if you remain idle for 180 minutes, and the client will disconnect the connection if you remain inactive for 12 minutes.

How do I keep ssh alive?

To set the SSH keep alive option on the server:

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

How do I set idle timeout?

Configure the idle timeout using the console

On the navigation pane, under LOAD BALANCING, choose Load Balancers.
Select your load balancer.
On the Description tab, choose Edit idle timeout.
On the Configure Connection Settings page, type a value for Idle timeout.
Choose Save.

How to setup timeout for SSH sessions?

Method 1. 1.Configure the timeout value in the/etc/ssh/sshd_config file with below parameter values.

Method 2. You can set the ClientAliveCountMax value to 0 and ClientAliveInterval value to 10m to achieve the same thing.

Difference between method 1 and method 2. There’s a little difference between these two methods.

What is default timeout on SSH?

TCP Timeout. Your server’s timeout defaults to your system’s TCP timeout.

Server-Wide Timeout Settings. Editing the timeout from the sshd_config file will change the timeout options for every client that logs on to the server.

Client-Based Timeout.

Risks of Changing Timeout.

How to avoid SSH timeouts?

By sending a “null packet” between the client and the server at a specified interval that is smaller than the timeout value, we can avoid SSH timeout. It doesn’t matter if the packet is sent from the client or the server, as long as there is some communication going on between the two.