CURLOPT_TCP_KEEPALIVE man page

## NAME

CURLOPT_TCP_KEEPALIVE - enable TCP keep-alive probing

## SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TCP_KEEPALIVE, long probe);

## DESCRIPTION

Pass a long. If set to 1, TCP keepalive probes will be sent. The delay and frequency of these probes can be controlled by the CURLOPT_TCP_KEEPIDLE and CURLOPT_TCP_KEEPINTVL options, provided the operating system supports them. Set to 0 (default behavior) to disable keepalive probes

## DEFAULT

0

## PROTOCOLS

All

## EXAMPLE

TODO

## AVAILABILITY

Added in 7.25.0

## RETURN VALUE

Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

## SEE ALSO

CURLOPT_TCP_KEEPIDLE CURLOPT_TCP_KEEPINTVL

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