| c: Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al. |
| SPDX-License-Identifier: curl |
| Long: keepalive-time |
| Arg: <seconds> |
| Help: Interval time for keepalive probes |
| Added: 7.18.0 |
| Category: connection |
| Example: --keepalive-time 20 $URL |
| See-also: no-keepalive max-time |
| Multi: single |
| --- |
| This option sets the time a connection needs to remain idle before sending |
| keepalive probes and the time between individual keepalive probes. It is |
| currently effective on operating systems offering the TCP_KEEPIDLE and |
| TCP_KEEPINTVL socket options (meaning Linux, recent AIX, HP-UX and more). |
| Keepalives are used by the TCP stack to detect broken networks on idle |
| connections. The number of missed keepalive probes before declaring the |
| connection down is OS dependent and is commonly 9 or 10. This option has no |
| effect if --no-keepalive is used. |
| |
| If unspecified, the option defaults to 60 seconds. |