In such cases, the TCP/IP stack is responsible for detecting when the
network connection is irrevocably lost. Since with some protocols it is
- perfectly legal for the client wait indefinitely for data, the stack may
+ perfectly legal for the client to wait indefinitely for data, the stack may
never report a problem, and even when it does, it can take up to 20 minutes
for it to detect an issue. The curl option --keepalive-time enables
keep-alive support in the TCP/IP stack which makes it periodically probe the