from small one page howto to huge articles all in one place
 

search text in:





Poll
Which kernel version do you use?





poll results

Last additions:
using iotop to find disk usage hogs

using iotop to find disk usage hogs

words:

887

views:

186345

userrating:

average rating: 1.7 (102 votes) (1=very good 6=terrible)


May 25th. 2007:
Words

486

Views

250360

why adblockers are bad


Workaround and fixes for the current Core Dump Handling vulnerability affected kernels

Workaround and fixes for the current Core Dump Handling vulnerability affected kernels

words:

161

views:

137535

userrating:

average rating: 1.4 (42 votes) (1=very good 6=terrible)


April, 26th. 2006:

Druckversion
You are here: manpages





CURLOPT_PROXY_SSL_VERIFYPEER

Section: curl_easy_setopt options (3)
Updated: December 16, 2016
Index Return to Main Contents

 

NAME

CURLOPT_PROXY_SSL_VERIFYPEER - verify the proxy's SSL certificate  

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_SSL_VERIFYPEER, long verify);  

DESCRIPTION

Pass a long as parameter set to 1L to enable or 0L to disable.

This option tells curl to verifies the authenticity of the HTTPS proxy's certificate. A value of 1 means curl verifies; 0 (zero) means it doesn't.

This is the proxy version of CURLOPT_SSL_VERIFYPEER(3) that's used for ordinary HTTPS servers.

When negotiating a TLS or SSL connection, the server sends a certificate indicating its identity. Curl verifies whether the certificate is authentic, i.e. that you can trust that the server is who the certificate says it is. This trust is based on a chain of digital signatures, rooted in certification authority (CA) certificates you supply. curl uses a default bundle of CA certificates (the path for that is determined at build time) and you can specify alternate certificates with the CURLOPT_PROXY_CAINFO(3) option or the CURLOPT_PROXY_CAPATH(3) option.

When CURLOPT_PROXY_SSL_VERIFYPEER(3) is enabled, and the verification fails to prove that the certificate is authentic, the connection fails. When the option is zero, the peer certificate verification succeeds regardless.

Authenticating the certificate is not enough to be sure about the server. You typically also want to ensure that the server is the server you mean to be talking to. Use CURLOPT_PROXY_SSL_VERIFYHOST(3) for that. The check that the host name in the certificate is valid for the host name you're connecting to is done independently of the CURLOPT_PROXY_SSL_VERIFYPEER(3) option.

WARNING: disabling verification of the certificate allows bad guys to man-in-the-middle the communication without you knowing it. Disabling verification makes the communication insecure. Just having encryption on a transfer is not enough as you cannot be sure that you are communicating with the correct end-point.  

DEFAULT

1  

PROTOCOLS

All  

EXAMPLE

CURL *curl = curl_easy_init();
if(curl) {
  curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");

  /* Set the default value: strict certificate check please */
  curl_easy_setopt(curl, CURLOPT_PROXY_SSL_VERIFYPEER, 1L);

  curl_easy_perform(curl);
}
 

AVAILABILITY

Added in 7.52.0

If built TLS enabled.  

RETURN VALUE

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

SEE ALSO

CURLOPT_PROXY_SSL_VERIFYHOST(3), CURLOPT_SSL_VERIFYPEER(3), CURLOPT_SSL_VERIFYHOST(3),


 

Index

NAME
SYNOPSIS
DESCRIPTION
DEFAULT
PROTOCOLS
EXAMPLE
AVAILABILITY
RETURN VALUE
SEE ALSO





Support us on Content Nation
rdf newsfeed | rss newsfeed | Atom newsfeed
- Powered by LeopardCMS - Running on Gentoo -
Copyright 2004-2020 Sascha Nitsch Unternehmensberatung GmbH
Valid XHTML1.1 : Valid CSS : buttonmaker
- Level Triple-A Conformance to Web Content Accessibility Guidelines 1.0 -
- Copyright and legal notices -
Time to create this page: 17.2 ms