![]() ![]() So, after completing STEP 1, you must go to the Session window and click the "Save" button. Saving your PuTTY session is not the most obvious feature of PuTTY as there’s no SAVE button on every configuration window. The default value is 0 which tells PuTTY not to bother about keeping the connection alive. The value you select must be less than the idle session timeout of your server for PuTTY to keep your connection active. If you do not know the idle session timeout defined on your server, then choose a small value for the "seconds between keepalives". This ensures that your PuTTY client sends NULL packets to the server regularly. Go to PuTTY Configuration –> Connection and set the "seconds between keepalives" to a non-zero value. In order to prevent the server from dropping your PuTTY connection and making it inactive, your PuTTY client must send packets to the server even when you’re not using it. This is done to protect the server (and network components) against a build-up of several redundant connections that could affect performance. When a server determines that your session is idle (you have not used it for a pre-defined interval), it will drop your connection. Why does a PuTTY connection become inactive? Connections use resources like cpu and memory on the client and server. How to identify an inactive PuTTY connection? When you cannot type anything in your PuTTY window and you see " (inactive)" in your PuTTY window’s title bar, it means that your connection is inactive (has been dropped by the server). My PuTTY connection becomes inactive, thereby requiring me to reconnect to the server and login again. ![]()
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