Keeping Your SSH Connections Alive: Configuring ServerAliveInterval and ServerAliveCountMax
Maintaining a stable SSH connection is essential when working on remote servers. Disconnections due to inactivity can interrupt workflows and be quite frustrating. Fortunately, you can configure SSH to send periodic keep-alive messages, preventing your connection from timing out. Step-by-Step Guide 1. Open the SSH Client Configuration File Use your preferred text editor to modify the SSH configuration file. For example, with vim : sudo vim /etc/ssh/ssh_config If OpenSSH is installed via Homebrew, the configuration file might be located at: /usr/ local /etc/ssh/ssh_config 2. Modify the Configuration Add the following lines after the Host * directive to apply these settings to all SSH connections: ServerAliveInterval 240 ServerAliveCountMax 10 ServerAliveInterval : Specifies the interval (in seconds) at which the client sends keep-alive messages to the server. In this case, every 240 seconds. ServerAliveCountMax : Limits the number of keep-alive messages sent w...