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How long do connections last?
TCP connections will generally last about two hours without any traffic. Either end can send keep-alive packets, which are, I think, just an ACK on the last received packet. This can usually be set per socket or by default on every TCP connection. An application level keep-alive is also possible.
How long does HTTP connection stay open?
The HTTP persistent connections do not use separate keepalive messages, they just allow multiple requests to use a single connection. However, the default connection timeout of Apache httpd 1.3 and 2.0 is as little as 15 seconds and just 5 seconds for Apache httpd 2.2 and above.
How long does a SSH connection last in Linux?
Maybe you have to set ClientAliveInterval in your sshd_config. In theory, an SSH connection can last indefinitely. It can be explicitly terminated by either side at the SSH layer (with a FIN packet) or abnormally terminated at the TCP layer (with a RST packet).
Is there a way to keep SSH session alive?
Closed 3 years ago. I use ssh -p8520 username@remote_host to login remote server. It is always connected and works properly when I am in the work place. Unfortunately, terminal freezes in 10 – 15 minutes after I connected with the remote server from home. There’s no error/timeout report on the console but the cursor cannot move any more.
How does the SSH daemon keep the connection alive?
The ssh daemon (sshd), which runs server-side, closes the connection from the server-side if the client goes silent (i.e., does not send information). To prevent connection loss, instruct the ssh client to send a sign-of-life signal to the server once in a while.
What do you need to know about SSH connection?
The client must begin the SSH connection by initiating the TCP handshake with the server, ensuring a secured symmetric connection, verifying whether the identity displayed by the server match previous records (typically recorded in an RSA key store file), and presenting the required user credentials to authenticate the connection.